ekhanij.mp.gov.inekhanij.mp.gov.in/appprevious/documents/gr/chakariya.pdfभारत...

भारत सरकार / GOVERNMENT OF INDIA

खान म�ालय / MINISTRY OF MINES

भारतीय भव�ा�नक सव��ण

GEOLOGICAL SURVEY OF INDIA

�मशन -II / Mission – II

म�य �दश, जबलपर / Madhya Pradesh, Jabalpur

ख�नज अनवषण / Mineral exploration

म�य �दश रा'य क सीधी िजला, त*सील-+चतरगी क अतग.त चक/रया �� म0 1वण. ख�नजन

क गवषण पर अ�तम ��तवदन (जी - ०२)

धरातल प�ा4क ६३एल/११(भाग)

मद 9माक: ०५४/एम.ई./सी.आर./एम.पी./२०१६/४४

काय. स�: २०१६-१७

FINAL REPORT ON GENERAL EXPLORATION FOR GOLD MINERALISATION IN

CHAKARIYA BLOCK, TEHSIL-CHITRANGI, SIDHI- DISTRICT, MADHYA PRADESH.

STAGE (G-2)

Toposheet Nos. 63L/11(part)

Item no. 054/ME/CR/MP/2016/44

Field season: 2016-2017

By

जबलपर / Jabalpur December 2017

न क, नक क प अन क न न अ इ क क ग पन क न न क ज I

Not to be reproduced in part or full with the prior permission of the Director General, Geological Survey of India, Kolkata

CलDसन बाग, व.भव�ा�नक Gladson Bage, Senior Geologist

अ�भनव ओम Fककर, भव�ा�नक Abhinav Om Kinker, Geologist

सी�मत चालन �तवदन

Limited Circulation Report

i

REPORT ON GENERAL EXPLORATION FOR GOLD MINERALISATION

IN CHAKARIYA BLOCK, VILLAGE- CHAKARIYATEHSIL- CHITRANGI,

SINGRAULI- DISTRICT, MADHYA PRADESH. STAGE (G-2)

63L/11(PART)

Field Season: 2016-17

By

Gladson Bage, Senior Geologist

Abhinav Om Kinker, Geologist

CONTENTS

Page No.

I. साराश -------

ABSTRACT (English) ----

II.

INTRODUCTION 1-2

I.01 Details of FSP 1

I.02 Objective of investigation 1

I.03 Acknowledgement 2

III. PROPERTY DESCRIPTION 3-4

III.01 Title of ownership 3

III.02 Details of area 3

III.02.1 Village Name,District,State 3

III.02.2 Survey of India Toposheet no. 3

III.02.3 Geo-coordinate with the help of DGPS 3

III.02.4 Cadastral details of the area with landuse 3

III.02.5 Freehold/leasehold 3

III.02.6 Location and accessibility 3

III.02.7 Climate 3

III.02.8 Flora and Fauna 3

III.03 Infrastructure & Environment: 3-4

IV. PREVIOUS EXPLORATION 5-8

IV.01 Details of previous exploration investigation carried

by other agencies/parties 5-8

V. GEOSCIENCE INVESTIGATION 9

V.01 Regional Geology 9

V.01.1 Brief regional geology 9-10

V.01.2 Regional stratigraphy 11

V.02 Detailed geological exploration 11-36

V.02.1 Detailed mapping on 1:1000 scale 11

V.02.2 Description of rocks 11-15

V.02.3 Petrological and petrochemical studies including

EPMA and Whole rock analysis 15-25

V.02.4 Structure 26

V.02.5 Metamorphism 26

V.02.6 Mineralogy of the ore zones and ore textures 26-27

V.02.7 Pitting and Trenching 27-32

V.02.8 Sampling 32

ii

V.02.9 Discussion of results of chemical analysis 33-42

V.02.10 Details of interpreted ore zones on the basis of

geological investigation 42

VI. INTEGRATION OF GEOLOGICAL,GEOCHEMICAL AND

GEOPHYSICAL DATA AND INTERPRETATION, THEREOFF

43-44

VII. ABIOTIC PARAMETERS 45-46

VIII. MINERAL DEPOSITS 47-

VIII.01 Surface indication of mineralization 47

VIII.02 Mode of occurrence 48-49

VIII.03 Nature of mineralization 50-51

VIII.04 Details of mineralized zones: strike length and width of

anomaly on the basis of geology, geophysical and

geochemical

51

VIII.05 Alterations zones and its relevance with mineralization 51-52

VIII.06 Genesis of mineralization/Genetic model of mineralization 52-53

IX. EXPLORATION BY DRILLING 54-

IX.01 Stage of mineralization as per mineral content rule 54

IX.02 Methodology of drilling with the details of type of drilling i.e.

Core drilling 54

IX.03 Borehole planning: spacing of Boreholes and level of

intersection of ore zones as per mineral content rule. 54-63

IX.04 Borehole logging 64-84

IX.05 Core recovery percentage 85-89

IX.06 Geophysical logging of borehole and correlation with

borehole geology 89-100

IX.07 Mineralogy of ore zones 101-105

IX.08 Borehole deviation test and methodology 105-107

IX.09 Methodology of the ore zone sampling 108-116

IX.10 Sample preparation: Chemical analysis and laboratory

procedures 116

IX.11 Check samples:NABL accredited Labs 117

IX.12 Details of intersected ore zones of the boreholes drilled and

their co-relation 118-123

X. X.01 ORE BENEFECIATION STUDY 124

XI. XI.01 GEOTECHNICAL STUDYS ON BOREHOLE CORE

SAMPLESOF MINERALIZED ZONE HANGING

WALL AND FOOTWALL SIDE

125-131

XI.01.1 RQD ( Rock Quality Designation) 125-131

XII. RESOURCE ESTIMATION 132-

XII.01 Introduction 132

XII.02 Detailed description of ore zones 132

XII.03 Core recovery 132-133

XII.04 Cut off grade consideration 133

XII.05 Minimum stoping width consideration 133

XII.06 Correlation of ore Lodes 133

XII.07 Description of Lodes 133

XII.08 Preparation of LV sections 133

iii

XII.09 Assumptions for resource estimation 134

XII.10 Methodology of ore reserve estimation 135

XII.10.1 Cross section method 135-136

XII.10.2 Longitudinal vertical section 137-138

XII.10.3 Cumulative Resource Estimation for Gold for

boreholes drilled during FS 1999-2001 and FS

2016-17 at Chakariya Block

139

XII.11 Category of resources/reserve as per UNFC classification 140

XIII. Recommendation 141

XIV. Conclusion 142-144

References

Locality Index

TABLES:

Page No.

Table-I Quantum of work and targets achieved during FS: 2016-

17 2

Table-II Details of Exploration work for gold in Chakariya Block.

(after Jha et.al) 5-6

Table-III Lithostratigraphy of Mahakoshal Group in Eastern Part,

(After Devarajan (1997) 11

Table-IV Details of anomalous values of As, Bi and Cu in

Borehole CBH-01 38-39

Table-V Details of anomalous values of As, Bi and Cu in


Table-VI Details of anomalous values of As, Bi and Cu in

Borehole CBH-03 41

Table-VII Details of anomalous values of As, Bi and Cu in

Borehole CBH-04 41

Table-VIII Details of anomalous values of As, Bi and Cu in


Table-IX Correlation matrix of analyzed elements of Core

Samples.

42

Table-X Details Of Corelogging Of Borehole No. CBH-01 65-67

Table-XI Details Of Corelogging Of Borehole No. CBH-02 68-71

Table-XII Details Of Corelogging Of Borehole No. CBH-03 72-74

Table-XIII Details Of Corelogging Of Borehole No. CBH-04 75-77

Table-XIV Details Of Corelogging Of Borehole No. CBH-05 78-80

Table-XV Details of Corelogging of Borehole No. CBH-06 81-83

Table-XVI Details of Corelogging of Borehole No. CBH-07 83-84

Table-XVII Details of Core recovery percentage of Borehole No.

CBH-01 85

Table-XVIII Details of Core recovery percentage of Borehole No.

CBH-02 85-86

Table-XIX Details of Core recovery percentage of Borehole No.

CBH-03 86-87

Table-XX Details of Core recovery percentage of Borehole No. 87-

iv

CBH-04

Table-XXI Details of Core recovery percentage of Borehole No.

CBH-05

87-88

Table-XXII Details of Core recovery percentage of Borehole No.

CBH-06

88-

Table-XXIII Details of Core recovery percentage of Borehole No.

CBH-07

88-89

Table-XXIV Geophysical logging of borehole and correlation with

borehole geology of CBH-01 89-90

Table-XXV Geophysical logging of borehole and correlation with

borehole geology of CBH-02 90-91

Table-XXVI Geophysical logging of borehole and correlation with

borehole geology of CBH-03 91

Table-XXVII Geophysical logging of borehole and correlation with


Table-XXVIII Geophysical logging of borehole and correlation with


Table-XXIX Geophysical logging of borehole and correlation with


Table-XXX Geophysical logging of borehole and correlation with


Table-XXXI Details of samples of mineralized zone from each

borehole. 109-115

Table-XXXII Details of intersected ore zones of the borehole CBH-01 119

Table-XXXIII Details of intersected ore zones of the borehole CBH-02 119-120

Table-XXXIV Details of intersected ore zones of the borehole CBH-03 120-121

Table-XXXV Details of intersected ore zones of the borehole CBH-04 121

Table-XXXVI Details of intersected ore zones of the borehole CBH-05 122

Table-XXXVII Details of intersected ore zones of the borehole CBH-06 122-123

Table-XXXVIII Details of intersected ore zones of the borehole CBH-07 123

Table-XXXIX Details of RQD observed from Borehole No. CBH-01 126

Table-XL Details of RQD observed from Borehole No. CBH-02 126-127

Table-XLI Details of RQD observed from Borehole No. CBH-03 127-128

Table-XLII Details of RQD observed from Borehole No. CBH-04 128

Table-XLIII Details of RQD observed from Borehole No. CBH-05 129

Table-XLIV Details of RQD observed from Borehole No. CBH-06 130

Table-XLV Details of RQD observed from Borehole No. CBH-07 131

Table-XLVI Reserve estimation sheet by cross-section methods for

Gold

136

Table-XLVII Reserve estimation sheet by LV section methods for Gold 138

Table-XLVIII Cumulative Resource Estimation sheet for borehole

drilled during FS 1999-2001 and FS 2016-17 for Gold 139

FIELD PHOTOGRAPH Page No

Field Photograph-

I:

Greenish phyllite with quartz vein grey south of

Chakariya Block 12

Field Photograph-

II:

Banded Iron ore Formation (BIF) north of Chakariya

Block 13

v

Field Photograph-

III

Scorodite outcrop observed near trench CT-09,Chakriya

Block 15

Field Photograph-

IV

Trench boundary of CTR-01 and CTR-02 marked across

the scorodite bands along the azimuth of CBH-01 at

Chakariya Block, Distt: Singrauli

28

Field Photograph-

V

Trench boundary of CTR-03 along the azimuth of CBH-

04 marked at Chakariya Block, Distt: Singrauli 28

Field Photograph-

VI

Trench CTR02 marked along the azimuth of CBH-01 at

Chakariya Block, Distt: Singrauli 29

Field Photograph -

VII

Trench boundary of CTR-03 along the azimuth of CBH-

04 marked at Chakariya Block, Distt: Singrauli 29

Field Photograph-

VIII

Collection and in-situ measurement of water sample from

dug well at Chakariya block. 45

Field Photograph-

IX

Oxidized outcrop of Scorodite near Trench CT-9.

Longitude: 82°42´45´´ Latitude: 24°17´3.5´´ 47

Field Photograph-

X

Small Scorodite body in the west of Trench CTR4

Longitude: 82°43´30.7´´ Latitude: 24°17´10.16´´ 48

Field Photograph-

XI

Folding observed in quartz vein at Chakariya nala.


Field Photograph-

XII

Sulphidation of Scorodite north of Borehole GCD-01,


Field Photograph -

XIII

Specks of arsenopyrite core along with quartz vein grey.

Borehole No.CBH-01. 101

Field Photograph -

XIV

Specks of arsenopyrite and chalcopyrite observed in core

along with quartz vein grey. Borehole No.CBH-02 101

Field Photograph -

XV

Specks of chalcopyrite in core along with quartz vein

grey. Borehole No.CBH-01 102

Field Photograph -

XVI

specks of chalcopyrite observed in core samples along the

fracture inquartz vein grey, Borehole No.CBH-01 102

Field Photograph -

XVII

Specks of arsenopyrite along the foliation plane of

arenite. Borehole No.CBH-02 102

Field Photograph -

XVIII

Blebs of Chalcopyrite in Quartz vein grey Borehole

No.CBH-02

102

Field Photograph -

XIX

Specks of arsenopyrite, scorodite in grey quartz vein.

Borehole No.CBH-02 103

Field Photograph -

XX

specks of arsenopyrite,chalcopyrite chlorite in grey quartz

vein, host rock arenaceous phyllite, Borehole No.CBH-02 103

Field Photograph -

XXI

specks of arsenopyrite, chalcopyrite in quartz vein grey in

arenaceous phyllite, Borehole No.CBH-02 103

Field Photograph -

XXII

specks of arsenopyrite in arenaceous phyllite. Borehole

No.CBH-02 103

Field Photograph -

XXIII

Chloritic vein contains arsenopyrite and chalcopyrite

cross cutting the foliation plane in arenaceous phyllite.

Borehole No.CBH-05.

104

Field Photograph -

XXIV

Stretched Chert band within BIF forming boudins.


vi

FIGURE: Page No

Figure-I Trench CTR-01 along the azimuth of CBH-01 at


Figure-II Trench CTR-02 along the azimuth of CBH-01 at


Figure-III Trench CTR-03 along the azimuth of CBH-04 at


Figure-IV Trench CTR-04 along the azimuth of CBH-08 at


Figure-V Log Na2O/K2O vs. Log SiO2/Al2O3 binary geochemical

classification diagram for Phyllite of Chakariya Block

{after Pettijohn et al., 1972 (indicated by dashed lines);

modified and boundaries redrawn by Heron, 1988

(indicated by solid lines)

35

Figure-VI Al2O3 vs. TiO2 and Na2O vs. K2O binary geochemical

classification diagrams for rocks of Dudhmania

Formation (Mahakoshal Group of rocks)

36

Figure-VII (K2O/Na2O vs. SiO2 and K2O vs. Na2O binary diagram

for Dudhmania Formation of Mahakoshal Group of

sediments (after Roser and Korsch, 1986). ARC is the

oceanic island-arc margin field; ACM is the active-

continental margin field; PM is the passive margin field.)

36

Figure-VIII The logarithms plot of the weight ratios of SiO2/Al2O3

against (Na2O+CaO)/K2O for Dudhmania Formation of

Mahakoshal Group of rocks representing the chemical

behaviour of the samples (Garrels and Mackenzie, 1969).

37

Figure- IX Location of old borehole and drilled borehole during FS

2016-17, Chakariya Block, Singrauli 56

Figure- X Cross-Section of Borehole No. CBH 01 (1st Level

Borehole), Gold Investigation in Chakariya Block, Sidhi

district, MP (in Parts of T. S No. 63L/11)

57

Figure–XI Cross-Section of Borehole No. CBH 04 (1st Level

Borehole), Gold Investigation in Chakariya Block, Sidhi


58

Figure–XII Cross-Section of Borehole No. CBH 02 (2nd

Level

Borehole) and surface location point of GCD 01 (earlier

drilled borehole), Gold Investigation in Chakariya Block,

Sidhi district, MP (in Parts of T. S No. 63L/11)

59

Figure–XIII Cross-Section of Borehole No. CBH 03 (2nd

Level




60

Figure–XIV Cross-Section of Borehole No. CBH 05 (2nd

Level



61

vii


Figure–XV Cross-Section of Borehole No. CBH 06 (2nd

Level




62

Figure–XVI Cross-Section of Borehole No. CBH 07 (2nd

Level




63

Figure–XVII Book and Snake pattern of keeping of core. 64

Figure–XVIII Geophysical log showing the reported mineralized zone

and inferred mineralized zone on the basis of Geophysical

log of Borehole no. CBH-01

94

Figure–XIX Geophysical log showing the reported mineralized zone



95

Figure–XX Geophysical log showing the reported mineralized zone



96

Figure–XXI Geophysical log showing the reported mineralized zone



97

Figure–XXII Geophysical log showing the reported mineralized zone



98

Figure–XXIII Geophysical log showing the reported mineralized zone



99

Figure–XXVI Geophysical log showing the reported mineralized zone



100

Figure-XXVII Diagram showing etch angle measurement from test tube

(D.A. Berkman,)

107

Figure XXVIII Diagram illustrating RQD calculation (after D.U. Deere

and D.W. Deere). 125

PHOTOMICROGRAPH: Page No

Photomicrograph

no-I

Photo micrograph of phyllite with quartz fish structure

showing dextral sense of movement in ppl. 16

Photomicrograph

no-II

Photo micrograph of phyllite with quartz fish structure

showing dextral sense of movement in xpl. 16

Photomicrograph

no-III

Photo micrograph in polished section of arsenopyrite in

Sample no. 18 16

Photomicrograph

no-IV

Photo micrograph in polished section of pyrite in Sample

no. 20 16

viii

Photomicrograph

no-V:

Photo micrograph in polished section of pyrite in Sample

no. 17 16

Photomicrograph

no-VI:

Photo micrograph in polished section of chalcopyrite in

Sample no. 20 16

Photomicrograph

no-VII:

Photo micrograph of Vein filled Chalcopyrite in ppl 17

Photomicrograph

no-VIII:

Photo micrograph of Vein filledchalcopyrite and

arsenopyrite in ppl 17

Photomicrograph

no-IX:

Photo micrograph of pyrite in ppl 17

Photomicrograph

no-X:

Photo micrograph of chalcopyrite and arsenopyrite in ppl 17

Photomicrograph

no-XI

Photo micrograph of arsenopyrite in ppl 17

Photomicrograph

no-XII:


Photomicrograph

no-XIII:

Photo micrograph of chalcopyrite and arsenopyrite in ppl 18

Photomicrograph

no-XIV:

Photo micrograph of chalcopyrite and pyrrhotite in ppl 18

Photomicrograph

no-XV:

Photo micrograph of chalcopyrite and pyrrhotite in ppl 18

Photomicrograph

no-XVI:

Photo micrograph of pyrrhotite host and chalcopyrite in

ppl. 18

Photomicrograph

no- XVII:


Photomicrograph

no-XVIII:


Photomicrograph

no-XIX:

BSE image showing association of Arsenopyrite (Apy)

with grains of Gold (Au) and Bismuth (Bi) in Quartz vein

Grey.

19

Photomicrograph

no.- XX:

Spot values of Au with peak showing presence of Gold.

20

Photomicrograph

no.- XXI:


with grains of Gold (Au) and Bismuth (Bi) in Quartz vein

Grey.

21

Photomicrograph

no.- XXII:

BSE image showing association of Pyrrhotite (Po) and

Pyrite (Py) in Quartz vein Grey. 21

Photomicrograph

no. - XXIII:



Photomicrograph

no. – XXIV:



Photomicrograph

no. - XXV:


and Pyrite (Py) in phyllite. 24

Photomicrograph

no. - XXVI:


and Pyrrhotite (Po) in Arenaceous phyllite. 24

Photomicrograph

no.– XXVII:


and Pyrrhotite (Po) in Arenaceous phyllite 25

ix

Photomicrograph

no.– XXVIII:

BSE image showing presence of chalcopyrite in grey

quartz vein. 25

ANNEXURES: Annexure-I(A) Field data sheet of water samples and its in-situ measurements in

Toposheet No. 63L/11 (Chakariya Block)

Annexure-I(B) Dugwell/Handpump water analysis of toposheet no 63L/11 (part),

Chakariya Block

Annexure-I(C) Descriptive statistics of Dugwell/Handpump water analysis of toposheet

no 63L/11 (part), Chakariya Block

Annexure-I(D) Dugwell/Handpump (ICPMS)water analysis of toposheet no 63L/11

(part), Chakariya Block

Annexure-I(E) Dugwell/Handpump,(ICPMS) Descriptive statistics of toposheet no

63L/11 (part), Chakariya Block

Annexure-I(F) Correlation matrix of Dugwell/Handpump water sample geochemical

analysis of toposheet no 63L/11 (part), Chakariya Block

Annexure-I(G) Dugwell/Handpump water analysis by Direct Mercury Analyzer (DMA)

method of toposheet no 63L/11 (part), Chakariya Block

Annexure-II Details of lithology of trench no.CTR-01

Annexure-III Details of lithology of trench no. CTR-02

Annexure-IV Details of lithology of trench no. CTR-03

Annexure-V Details of lithology of trench no. CTR-04

Annexure-VI-A Geochemical Analytical Results of Bed Rock Samples (BRS)

Annexure-VI-B Descriptive Statistics of Bed Rock Samples (BRS)

Annexure-VI-C Correlation Matrix of Bed Rock Samples (BRS)

Annexure-VII Geochemical Analytical Results Of (Au) In Bed Rock Samples (BRS)

Annexure-VIII Geochemical analytical results of pitting/Trenching samples.

Annexure-IX Descriptive statistics and correlation matrix for trench samples

Annexure-X Borehole angle deviation data.

Annexure-XI Geochemical analytical results of Package A and Package H for Grid

no.24 and 25 of Toposheet no.63L/11

Annexure-XII (A) Petrochemical analytical data of Chakariya Block.

Annexure-XII (B) Descriptive Statistics of Petrochemical analytical data of Chakariya Block

Annexure-XII (C) Correlation Matrix of Petrochemical Analytical Data of Chakariya Block

Annexure-XIII(A) Summarized litholog of Borehole No. GCD-1

Annexure- XIII (B) Summarized litholog of Borehole No. GCD-2

Annexure- XIII (C) Summarized litholog of Borehole No. GCD-3

Annexure- XIII (D) Summarized litholog of Borehole No. GCD-4

Annexure- XIII (E) Summarized litholog of Borehole No. GCD-5

Annexure- XIII (F) Summarized litholog of Borehole No. GCD-6

Annexure- XIII (G) Summarized litholog of Borehole No. GCD-7

Annexure-XIII (H) Summarized litholog of Borehole No. GCD-8

Annexure-XIII (I) Summarized litholog of Borehole No. GCD-9

Annexure-XIV-A Geochemical analytical results of core samples from Chakariya Block,

x

Singrauli

Annexure-XIV-B Descriptive Statistics of Core Samples

Annexure-XIV-C Correlation Matrix of Core Samples

Annexure-XV-A-E The analytical results of EPMA analysis for sulphide phases.

PLATES: Plate-I Detailed Geological map of Chakariya Block, Singrauli District. Gupta

et.al 2001

Plate-II Drainage Map of Toposheet no.63L/11

Plate-III Longitudinal Vertical Projected Sections of Chakariya Block

Plate-IV Cross-section showing lateral continuity between boreholes in

chakariya block

Plate-V Litholog of 1st level old and new boreholes of chakariya block

Plate-VI Litholog of 2nd

level old and new boreholes of chakariya block

Plate-VII Cross sections of Level -1 and Level-II boreholes of chakariya block

मय रदश राय क सीधी जिऱा , तसीऱ-चितरगी क अतगगत िकररया षर म वग खननिन क गवष ऩर रनतवदन (िी - ०२)

ट ऩ शीट र. ६३एर/११ (बाग) कामयसर २०१६-२०१७

वाया ऱसन बाग, वररठ भवञाननक अभभनव ओम कककर, भवञाननक

: साराश:

चकरयमा रॉक , सीधी (अफ ससगय री) जजर भ वय खननज क सरए अवष का कामय ,

याम इकाई: भम रदश ,जफरऩय क कामय सर 2016-17 क द यान भद समा 054 /

एभई / सीआय / एभऩी / 2016/044 "भम रदश याम क सीधी जजर क चकरयमा रॉक भ

साभाम वय खननज क सरए गवष " क अतगयत ककमा गमा । इस जाच का उदम

वय ससाधन औय जड सपाइड खननजन का आकरन कयना था। अवष भ 855 भीटय

की रिसरग , 100 क य क नभन , 10 ऩर कसभकर नभन , 20 ऩर रॉजजकर क नभन का

अममन, 50 फड यॉक नभन , ई ऩी एभ ए क 10 नभन औय एस ई एभ-इ डी एस क

10 नभन शासभर थ। इनक अरावा 50 ऩीटटग/रजचग नभन क सरह क साथ 50 भीटय

ऩीटटग/रजचग का कामय बी ककमा गमा ।

झा,व अम (1999 -2001) की ससपारयश क भदनजय वय चकरयमा रॉक भ वय खननज

क सरए गवष (जी- 2 चय) की जाच कामय सर: 2016-17 क द यान की गई , जजसभ द

फ यह र ऩयान फ यह र क भम रिसरग अथायत 50भीटय फ यह र अतयार क साथ रथभ तय

ऩय रजचग क भान की ऩजटट कयन औय 100 भीटय क रफ ऩ रनतछदन वाया दसय

तय क ऩाच फ यह र , ससाधन क आकरन औय ऩहर स अनभाननत ससाधन की वधि क

सरए स न की खननज की गहयाई की गहनता तथा ननयतयता की जाच क सरए गवष का

कामय ककमा गमा। जाच र, भहाक शर सघ क दधभाननमा धवमास स सफधधत ह , जजसभ

हय यग की किराइट , अयनाससमस कपराइट , सभधित ऑसाइड-सससरकट फीआईएप शासभर

ह। प सरमसन का साभाम झान N65 ° W-S65 ° ह जजसकी अवननत द न टदशा की

ओय ह| भम ऩ स चकरयमा रॉक भ वाटयज सशया की तीन ककभ ह ती ह , र यग की

वाटयज सशया ( QVG), सपद वाटयज सशया ( QVW) औय सभधित र यग की वाटयज सशया

(QVM) । सपद वाटयज सशया (QVW) नस अऩाकत भ टा (अधधकतभ 6 भीटय) ह जफकक

र यग की वाटयज सशया औय सभधित र यग की वाटयज सशया 25 सटीभीटय स 50

सटीभीटय ह औय म फीआईएप तथा कपराइट भ अननमसभत औय असतसरत फड भ ह त ह ।

सशया रकाय क स न क खननज का धव ऩ औय ननन-िी क भटाभ कपय भ क द यान

गठन हआ ह। वाटयज सशया कपराइट क साथ सह अीम ह हाराकक कछ जगह ऩय मह

कपराइट क आय ऩाय बी ऩामा गमा ह। चकरयमा रॉक क धवसबन वाटयज सशयाओ क

नभन भ स एक नभना भ 8.8 ऩीऩीएभ की वय की सचना हई ह ज मह ऩजटट कयता ह

कक चकरयमा भ एधऩजनटटक औरयपयस वाटयज सशयाए ह।

सपद वाटयज सशयाए/ र वाटयज सशयाए / सभधित वाटयज सशयाए का एस 1 पॉरीएशन रन

क साथ िाइराइट भ घसऩठ हआ ह। म वाटयज नस भ ऩाइयाइट, चाक ऩाइयाइट,

आसनॉऩीयाइट क क औय जरगसय क ऩ भ ह त ह औय कछ खननज बग बयन क ऩ भ

ह त ह। वाटयज सशयाओ का असबथाऩन एस 1 सतह क साथ तथा इसका वरन एवभ

रचरयग खननजकय की करमा ऩय सयचनाभक ननमर का सचक ह। आसनॉऩीयाइट

(इसक फदरता ऩ क य रडइट सटहत) , ऩाइयाइट, चाक ऩाइयाइट औय गरना सतह भ

खननज र औय रिर क य भ ऩाए जान वार रभख सपाइड खननज ह।सससरका मत रम

का असबथाऩन एस 1 पॉरीएशन रन क साथ तथा वाटयज सशयाओ का गठन एवभ

सपाइड क क वषय गड का बयाव , जरजसय क ऩ भ हआ ह | वाटयज सशयाओ का

धव ऩ खननजजकय क दसय चय भ हई ह।

सससरकट क धवसबन चय जस र याइट वाया सरपाइड खननजजकय धवकरनत तर भ

हाइि थयभर व क रसाय तथा अगाभी वषय धव ऩता वार सतह क साथ-साथ जरभन

http://www.shabdkosh.com/translate/%E0%A4%85%E0%A4%AD%E0%A4%BF%E0%A4%B8%E0%A5%8D%E0%A4%A5%E0%A4%BE%E0%A4%AA%E0%A4%A8/%E0%A4%85%E0%A4%AD%E0%A4%BF%E0%A4%B8%E0%A5%8D%E0%A4%A5%E0%A4%BE%E0%A4%AA%E0%A4%A8-meaning-in-Hindi-English

रव का सचय हआ ह। खननज क फाद क चय भ प सरशन रन क काटन वार धवबग

सतह क साथ सपाइड खननज मत ह ती ह। वय का वाटयज ऩटिम क साथ रादबाव

खननज क इऩीजजननटटक रकनत क इधगत कयता ह | धव ऩ क द भम घटनाओ क दखा

गमा ह ज रीम डमएनडम-ईएसई भहाक शर चिान की रवजत क सरए उतयदामी ह

औय तीसय धवकनत तीरता भ हकी ह ज कक ऩहर द धवकनतम क साथ उच क ऩय

धवकससत ह | किराइट भ तर औय रसभनशन की रानय सभानातय औय ननयतय मासभनत

जथय ऩरयबाषा जथनतम क इधगत कयता ह। इस रकाय की मासभतीम दयगाभी टफयडीट

सपरता की धवसशटटता ह | सपाइड खननज भ आसन ऩाइयाइट , गरना, ऩाइयाइट औय

चाक ऩाइयाइट भम ऩ स ऩाम जात ह | जफकक क य डाइट, आसन ऩाइयाइट क अऩम

उऩाद क ऩ भ ऩामा जाता ह।ऩजचभी उतयी ऩजचभी - ऩवी दषी ऩवी टदशा भ

क य डाइट असतत ऩटिम क ऩ भ सतह ऩय धवमभान ह | म औय बी र भ कई

जगह ऩय दखा गमा ह जजसभ फ यह र जीसीडी - 7 क ऩवोतय भ , रच सीटी -9 भ तथा

फ यह र जीसीडी-01 औय जीसीडी -4 की उतय टदशाए शासभर ह।

चकरयमा रॉक का जर क ऩीएच का भान 6.70 स 7.44 ह | अत: जर का म भान

रकनत भ तटथ िी भ आता ह। टीडीएस का भान ऩीन क साथ-साथ कधष रम जन क

सरम उऩमत ह|

चकरयमा रॉक भ कर 07 फ यह र वाया 855 भीटय रिसरग ककमा गमा। 50 भीटय क

ऊवायधय अतयार क द फ यह र की म जना (जीसीडी 04 औय जीसीडी 01) औय (जीसीडी 05

औय जीसीडी 03) क फीच फनाई गई ह ताकक रच क भम की ऩजटट ह सक औय खननज

र की ननत क ननयतयता की जाच ह सक। ऩहरा तय ( 50 भीटय) खननज र की गहयाई

क ननयतयता की जाच क सरए भ रगाए गए तथा 100 भीटय क दसय रफर फ यह र की

म जना जीसीडी- 01, 05, 06, 07 औय 08 क सरए की गई ह। रिर क य स मह ऩामा गमा

ह कक धवसबन फ यह र भ खननज र क फीच सीसभत ऩावय ननयतयता ह |

फीआयएस नभन भ वय क भम 2.06ऩीऩीएभ स 9.16 ऩीऩीएभ तक क उच भम का

सकत क य डाइट क नभन भ सभरता ह। जफकक वाटयज र भ एम की भारा 0.72

ऩीऩीएभ स 2.39 ऩीऩीएभ तक ह। Cu की भारा 05 ऩीऩीएभ स 760 ऩीऩीएभ, Pb की

भारा 5 ऩीऩी स 210 ऩीऩीएभ, Zn की भारा 5 ऩीऩीएभ स 60 ऩीऩीएभ, Co की भारा

5 ऩीऩीएभ स 50 ऩीऩीएभ, Ag की भारा 0.5 ऩीऩीएभ स 10 ऩीऩीएभ औय Ni की भारा

5 ऩीऩीएभ स 45 ऩीऩीएभ तक ऩामी गमी ह।

ऩर कसभकर धवरष रसड ऩरट धवधध वाया ककमा गमा ह। कपरीइट क एक नभन भ

फरयअभ अधधक भारा भ (2408 सभरीराभ / ककर ) ऩामा गमा ह। फरयअभ का अननमसभत

भम कपरीइट भ भ जद अकरी पडऩाय भ ऩ टसशमभ क रनतथाऩन क ऩ भ आ

सकता ह। क य रडइट फड क नभन क धवरषाभक ऩरयाभ SiO2 की अऩाकत कभ

भारा औय Fe2O3 की अऩाकत उच भारा दशायता ह मकक वह एक साभाम हाइिटड

र ह खननज ह। SiO2 / Al2O3 क धव ि ( Na2O + CaO) / K2O) क वजन अनऩात

सकायाभक सफध टदखात ह औय दधभननमा धवमास की चिान क रवक औय आजरसस

र त का सझाव दत ह। भहाक शर सघ क दधभाननमा धवमास की तरछट क ननभाय क

आयक स औय सरधथक अनीनाइट क ऩ भ वगीकत ककमा जा सकता ह। Na2O औय K2O

की उच साभरी अवऩ भ ऐफाइट औय क-पडऩसय की रफरता क काय रतीत ह ती ह।

अममन क तहत भटासडीभटयी नभन क वाटयज सभि क ऩ भ वगीकत ककमा जाता ह

जजसका K2O/Na2O अनऩात > 1 ह। वाटयज क सभि नभन अऩनी ननजटरम भाजजयन

सटटग का सझाव दत ह।

ईऩीएभए धवरषाभक ऩरयाभ फतात ह कक ग ड औय यजत क सपाइड चय स जड

ह। वय औय फभथ क थान भम रभश 0.11% स 63.37% ह ज कक आसनॉऩीयाइट

भ ऩाम गम ह। जियक न , भ नजजट, थ रयमभ औय जन टाइभ इमाटद तव आयईई चय क

क सहम ग भ ह। आयईई असगत चय का रनतननधधव कयती ह ज भभटटक

करटरीकय क फाद क एधऩस ड क द यान फनाए गए चिान ऩय कटरत ह।आय ई ई चय

मादातय रचय तर क साथ भ जद ह त ह ज कक फाद क करटरीकय चय क ऩ

भ आ सकत ह। चकरयमा रॉक भ क य औय फड यॉक नभन का साजमकीम धवरष Bi-

As-Au एस ससएशन क ऩरयाभ का सभथयन कयता ह। ऩामय टाइट क साथ ऩाइयाइट की

क य ना सयचना फनी हई ह , ज कक ऩामय टाइट क एक ऩरयवतयन उऩाद क ऩ भ फनता ह ,

ज ऩामय टाइट क बीतय भाजजयन औय रचय तर क साथ बी ह ता ह। मह बी pyrite

वाया pyrrhotite क आसशक मा ऩयी तयह स रनतथाऩन का सझाव दता ह। ईऩीएभए

अममन क द यान ऩामी जान वार सपाइड चय भ अननमसभत औय धधरा ककनाया

हाइि थभयर क तजी स ठडा ह न की ओय इधगत कयता ह।

चकरयमा रॉक भ वय आसनॉऩीयाइट क एक रकाय क य डाइट क साथ-साथ एवभ

कपराइट क भामसभक प सरएसन औय फीआईएप क राथसभक िॉरीएशन (फरडग) क साथ

ह ता ह। कपरीइट औय फीआईएप भ स ना का र त बी इन चिान की पॉरीएशन रन

(चाह राथसभक मा धवनतमक) क साथ ही हाइि थभयर की ऩरयनत का ऩरयाभ ह।

क य डाइट फड क फीआयएस नभन क Au की भारा 2.06 ऩीऩीएभ स 9.16 ऩीऩीएभ क

फीच उच भान दशायत ह। वाटयज र भ Au की भारा 0.72 ऩीऩीएभ स 2.39 ऩीऩीएभ तक

ह। Cu क भम <10ppm स 760ppm, Pb <10ppm स 210ppm, Zn <10ppm स

120ppm, Co की भारा <10ppm स 50ppm, Ag की भारा <01ppm स 10ppm, Ni की

भारा <10ppm स 100ppm ह|

सकय अनबागीम धवधध वाया वय कर अनभाननत सचमी ससाधन औसत रड 1.81 g/t

क साथ 27023 टन ह जफकक L-VS धवधध वाया कर सचमी ससाधन औसत रड 1.81

g/t क साथ 24334 टन ह। कामय सर 1999-2001 औय 2016-17 क द यान चकरयमा रॉक

भ फ यह र क सरए अनभाननत सचमी ससाधन औसत रड 1.32 g/t क साथ 137782.5 टन

ह|

i

REPORT ON GENERAL EXPLORATION FOR GOLD MINERALISATION

IN CHAKARIYA BLOCK, TEHSIL- CHITRANGI, SINGRAULI- DISTRICT,

MADHYA PRADESH. STAGE (G-2)

63L/11(PART)


By



ABSTRACT

Exploration for Gold Mineralization in Chakariya block, Sidhi (now Singrauli)

District, Madhya Pradesh was carried out during FS 2016-17 under the item “General

Exploration for Gold Mineralization in Chakariya block, Sidhi District, Madhya

Pradesh” vide item no. 054/ME/CR/MP/2016/044.

The objective of the investigation was to assess Gold resources and associated

sulphide mineralization. The exploration involved drilling of 855m, core sampling of

100 nos, petrochemical sampling of 10 nos, petrological studies of 20 samples, bed

rock sampling of 50 nos, EPMA 10 nos and SEM-EDX 10 nos. A total of 50cum

pitting/trenching was also carried out with the collection of 50 PTS samples.

In view of the recommendation by Jha et al (1999-2001), G2 stage investigation was

taken up during FS: 2016-17, with two boreholes of closed spaced drilling (50m

borehole interval) at 1st level to confirm trench values and to check the strike

continuity of mineralized zone of adjacent boreholes and five boreholes of 2nd

level of

100m vertical intersections to examine the depth persistence of gold mineralization

for better resource estimation and augmentation of already estimated resources.

The investigated area belongs to Dudhmania Formation Mahakoshal Group of rocks,

which comprises greenish phyllite, areanaceous phyllite, mixed and oxide-silicate

facies BIF. The general trend of foliation is N65°W-S65°E to E-W with steep dip

towards either side.

Predominantly there are three varieties of quartz veins in the block viz. Grey to black

coloured quartz veins (QVG), White coloured quartz veins (QVW) and mixed grey to

white quartz veins (QVM). The QVW veins are comparatively thicker (up to 6m)

while QVG and QVM have 25cmto 50cm and occur as irregular and discontinuous

bands mainly within phyllites and rarely in BIFs. The vein type gold mineralisation

appears to have been formed during the deformation and low-grade metamorphism.

Quartz veins are co-axial with the phyllite though at places it cuts across the phyllite.

ii

Among various quartz veins sampled, one sample from Chakariya block has reported

Au value of 8.8 ppm. This confirms that Chakariya prospect has epigenetic auriferous

quartz veins.

White quartz veins/Grey quartz veins/Mixed quartz veins are intruded into phyllite

along S1 foliation planes. These quartz veins are containing specks and stringers of

sphalerite, pyrite, chalcopyrite, arsenopyrite and some mineralization occur in the

form of vug filling. The emplacement of quartz veins along the foliation planes and its

further fracturing and folding at places is suggestive of structural control on the

occurrence of mineralization. Arsenopyrite (including its altered form scorodite),

pyrite, chalcopyrite and galena are the principal sulphide minerals observed in the

mineralized zones in the surface and in drill cores.

Emplacement of silica rich melt has taken place along foliation plane S1 and

formation of quartz veins with subsequent precipitation of sulphide minerals in the

form of vugs filling, pecks and stringers. Deformation of quartz vein initiated the

second stage of mineralisation. Along the deformation planes the hydrothermal fluids

circulated and subsequent precipitation of sulphide mineralization took place along

with silicate phases viz chlorite. Later stage of mineralization is manifested by

precipitation of sulphide minerals along the fracture planes which are cross cutting the

foliation plane. Gold bearing quartz veins indicates epigenetic nature of

mineralization

Two main events of deformation have been noticed which are responsible for the

regional WNW-ESE trend of the Mahakoshal rocks and the third deformation is mild

in intensity and developed at high angle to the first two deformations

The planar parallel and continuous geometry of bed and laminations in phyllite

indicates stable depositional conditions. This type of geometries is typical of distal

turbidite successions.

The sulphide minerals comprise arsenopyrite, galena, pyrite and chalcopyrite as

primary sulphides and scorodite as weathering product of arsenopyrite.

Scorodite is manifested on the surface in the form of discontinuous bands trending

WNW-ESE and was observed at many places in the field including NE of Borehole

GCD-07, in Trench CT-9, North of Boreholes GCD-01 and GCD-04.

The water of Chakariya Block is more or less neutral in nature with pH ranging from

6.70 to 7.44. The TDS is well within range of drinking as well as agricultural

purposes.

iii

A total of 855 m of drilling was carried out by 07 boreholes. Two boreholes of 50m

vertical interval have been planned in between GCD04 & GCD01 and GCD05 &

GCD03 to confirm the trench values and also to check the strike continuity of

mineralized zone. The second boreholes of 100m vertical intersection has been

planned for GCD-01, 05, 06, 07 and 08 to examine the depth continuity of

mineralized zone intersected in first level (50m). It has been observed there is limited

lateral continuity between mineralized zones of different boreholes.

Petrochemical analysis has been carried out by pressed pellet method. High values of

barium 2408mg/kg has been observed in one sample of phyllite. Anomalous value of

barium may have come as substitution for potassium in alkali feldspar present in

phyllite. Analytical results of scorodite band samples shows less amount of SiO2 and

relatively high Fe2O3 content as its common hydrated iron arsenate mineral. The

weight ratios of SiO2/Al2O3 against (Na2O+CaO)/K2O show positive correlation and

suggest the greywacke and argillaceous source for the deposition of rocks of

Dudhmania formation.

Dudhmania Formation of Mahakoshal Group of sediments can be classified as arkose

and lithic arenite. The high content of Na2O and K2O appears to be due to the

predominance of albite and K-feldspars in the sediments. Metasedimentary samples

under study are classified as quartz rich with K2O/Na2O>1. The quartz rich samples

suggest the passive margin settings of their deposition.

EPMA analytical results suggest that Gold and Silver grains are associated with the

sulphide phases. The spot values of gold have been observed associated with bismuth

ranges from 0.11% to 63.37% and found in association in arsenopyrite. There is

association of Zircon, Monazite,Thorium and Xenotime of REE phases. REE

represents incompatible phases which are concentrated in rocks formed during later

episodes of magmatic crystallization. REE phases are mostly present along the

fracture planes which may have come as later stage of crystallization. Statistical

analysis of core and bed rock samples in chakariya block supports the corollary of Bi-

As-Au association. Corona strucure with pyrrhotite rimmed by pyrite which is formed

as an alteration product of pyrrhotite, also occuring along the margins and fracture

within pyrrhotite. It also suggest partial or completely replacement of pyrrhotite by

pyrite. Most of the suphide phases observed during the EPMA studies are anhedral

having irregular and blurr margins suggesting rapid cooling of hydrothermal solution

and subsequent haphazard growth of suphide phases during cooling.

iv

In chakariya block Au occurs alongwith an altered form of arsenopyrite called

scorodite and along secondary foliaton of phyllite and primary foliations (banding) of

BIF. The source of gold in phyllite and BIF is also a result of perculation of

hydrothermal emanations along foliation planes ( whether primary or secondary) of

these rocks.

The Au values of BRS samples of scorodite band indicate high values between

2.06ppm to 9.16ppm. Au values in quartz vein grey ranges from 0.72ppm to 2.39ppm.

The values of Cu ranges from <10ppm to 760ppm, Pb from <10ppm to 210ppm, Zn

from <10ppm to 120ppm, Co from <10ppm to 50ppm, Ag from <01ppm to 10ppm

and Ni from <10ppm to 100ppm.

A total of 27023 tonnes of ore with an average grade of 1.81 g/t has been estimated

for drillholes from cross section method and a total of 24334 tonnes of ore with an

average grade of 1.81 g/t has been estimated for drillholes from LV section method.

Cumulative resource estimation for Gold for boreholes drilled during FS 1999-2001

and FS 2016-17 at Chakariya Block is 137782.5 tonnes with an average grade of 1.32

g/t.

1

REPORT ON GENERAL EXPLORATION FOR GOLD MINERALISATION IN

CHAKARIYA BLOCK, TEHSIL- CHITRANGI, SINGRAULI- DISTRICT, MADHYA

PRADESH. STAGE (G-2)

63L/11(PART)


By



I. Introduction:

In view of the recommendation by Jha et al (1999-2001), G2 stage investigations has been

taken up during FS: 2016-17 with two boreholes of closed spaced drilling (50m borehole

interval) at 1st level to confirm trench values and to check the strike continuity of mineralized

zone of adjacent boreholes and as per UNFC guidelines of G2 stage investigation and five

boreholes of 2nd

level of 100m vertical intersections to examine the depth persistence of gold

mineralization for better resource estimation and augmentation of already estimated

resources.

I.01: Title:

The work was initiated in the field season programme 2016-2017 of Geological Survey of

India (GSI), Central Region, vide item No. 054/ME/CR/MP/2016/44, Title: General

Exploration for Gold Mineralisation in Chakariya block, Sidhi district, Madhya Pradesh and

continued as spilled over item in FS 2017-18. The drilling was carried out between period

from 03.03.2017 to 24.04.2017. Geophysical logging of the Chakariya Block was completed

on dated 29-04-17.

I.02: Objective(s) of investigation: Assessment of Gold resources and associated sulphide

mineralization.

Details on basis of taking up of item: On the recommendation of Jha et. Al (1999-2001), G2

stage investigation has been taken up during FS: 2016-17 for the resource estimation with

high confidence and augmentation of already estimated resources. Checking of the depth

persistence of the gold mineralization was also another objective for the G2 stage

investigation in the area.

2

Table-I: Quantum of work and targets achieved during FS: 2016-17

Nature of work Target for the F.S.2016-17

Total achievement

since date of

commencement

Surface Exploration

PT 50 cu. m 50 cu. m

PTS 50 nos 50 nos

Subsurface Exploration

1. Drilling (m) 800 m 855 m

2. Core Samples 100 nos 100 nos

3. Bulk Sampling for

Beneficiation

1 No (250 kg of Sample from all

the mineralized zones of 1/4th of

bore holes)

01 no.

4.Sampling for bulk Density

study 01 no.

01 no.

2. Geochemical Survey

a) BRS 50 nos 50 nos

3. Petrographic/

Mineragraphic Studies

(a) PS 20 nos 20 nos

(b)PCS 10 nos 10 nos

(c) SEM-EDX ++ 10 nos 10 nos

(d) EPMA 10 nos 10 nos

4.ChemicalAnalysisAu,Ag,Pb,

Cu,Zn,As,Ni,Co,Bi,Mo)

a. PTS 50 nos 51 50 Nos

b. BRS 50 nos 50 Nos

c. PCS* 10 nos 10 Nos

d. Core Samples 100 nos 100 Nos

I.03: Acknowledgement:

The assistance rendered by the ADG & HOD, CR for the successfully execution of field work

is thankfully acknowledged. The authors express their sincere thanks to Shri Ajay Kumar

Talwar, Suptdg. Geologist Project: Gold, Chakariya block, SU: MP, Jabalpur for their

constant guidance and encouragement in carrying out field work. The authors also express

their sincere thanks to H.N.Bawane, Director and HoO, for his valuable guidance during his

in-house discussions. They are thankful to Shri Hemraj Suryavanshi, Dy.DG. SU: MP,

Shri.V.P.Sable, D.D.G (Retd.) for their guidance and facilities provided. The authors also

express their sincere thanks to Dipak Hazra, Director and Pankaj Kumar, Suptdg Geologist

for their valuable guidance and encouragement during field work.

Special thanks to Shri Suresh Kumar, Senior Geologist, Amit Kumar, Sr. Geologist and

Keshav Khandelwal, Geologist for technical discussions in borehole planning and borehole

logging, without which it was very difficult to complete the work.

3

III: PROPERTY DESCRIPTION:

(1) Title of Ownership: Gram Panchayat: Chakariya, Churki

III.01: Details of the area:

III.01.1: Village: Chakariya, District: Singrauli, State: Madhya Pradesh

III.01.2: Survey of India Toposheet No.: 63L/11

III.01.3: Geo- Coordinate of the block.

E 82°43´14.72´´ to 82°44´4.2´´

N 24°17´4.3´´ to 24°16´48.6´´

III.01.4: Cadastral details of the area with landuse: Revenue land with agricultural use.

III.01.5: Freehold/Leasehold. If lease hold give the status. - Freehold

III.01.6: Location and Accessibility

Chakariya Block located in Sidhi district (now in Singrauli) of Madhya Pradesh falls in

parts of toposheet no. 63L/11. The area is located about 14 km north of Singrauli Railway

Station and 39 km from District Headquarter Waidhan. The nearest Railway station Karaila

Road is 1 km south of Chakariya Village. Chakariya block is approached by Waidhan-

Singrauli-Renukoot road. This block can also be approached by Chitrangi-Dudhmania-Churki

Road and Katrihaar-Silphori Road. This area falls in 63L/11SE quadrant. Singrauli is well

known for its coal mines and headquarter of Northern Coalfields Limited (NCL). India‟s

thickest coal seam is found here in village Jhingurdah. It is hub of coal based power

generation of India. The interior parts of the area are accessible by forest roads and foot

tracks.

III.01.7: Climate

Ample variation of temperature is characteristic of the area. The temperature ranges from 7°C

in winter to 41° C in summer. December, January and February are the coldest months, while

May, June and July are the hottest months. The entire area receives the monsoon rain from

mid of July to end of September. The area receives around 1240 mm rainfall annually.

III.01.8: Flora and Fauna

Chakariya Block support most common deciduous species such as Sal (Shorea robusta),

Mahua, Tendu (Disaphros metanoxylon). Amla (Phylanthus amblica), Zizyphus-Jujuba (Ber),

Ficus religiosa (Pipal), Magnifera indica (Mango), Semal (Bombex ceiba), Dalbergia sisso

(Shisham) and Sakhua (Shorea robusta). The faunal species which are commonly seen in the

area are monkey, fox, snakes, scorpions and hyena.

III.03: Infrastructure & Environment: Local infrastructure, host population, Historical

sites, National park and environmental setting of the area.

4

The Chakariya area is having dispersed settlement with kachha houses made up of mud and

wood. The Chakariya village and surrounding areas are sparsely populated with population of

no more than 250 people. The topography is undulating with small hills and shallow valleys

often occupied by seasonal nalas. It is a dry and arid region supporting dry deciduous

vegetation and shrubs. Forest is managed by the community itself. Agriculture is monsoon

dependent and soil profile is shallow and not well developed. Soil is dry and low in nutrient

content.

5

IV: PREVIOUS EXPLORATION:

IV.01: Details of previous exploration/investigation carried by other agencies/parties.

Gold exploration in Chakariya Block (E-1 Stage) was carried out vide item no.

MIE/CR/MP/1999/019 during the field season programme 1999-2001. Drilling was done

over 800 meters strike length in the eastern part for assessing the potentiality of the auriferous

zones identified by trenches. A total of 1291.30 drilling were done in 09 boreholes.

The total trenching done in Chakariya Block was 976.00 cubic metres in 18 trenches. In the

eastern part 352.50 cubic metres of excavation was done in 14 trenches over a strike length of

900 metres. The length of trenches varies from 10.00 to 40.70 metres. Nine boreholes with

total of 1291.30 metres were drilled. The inclined boreholes with 50° angle were planned to

intersect the mineralised zones at about 60m vertical depths. They were located 100 metres

apart. The details of analytical results for this are as follows

Name of

the Block

FS Year Area Average

grade

Av.

True

Width

Resource

(mt)

Status of

Exploration

Chakariya

Block

1999-2001 1.0 Sq. km 1.20 gm/t 1.26m 198350 E-1,

(Preliminary

exploration)

(G-3)

R.L. at

Collar

(m)

Mineralised

Zone

Depth along drillhole True Width

(m)

Au

(g/t) From (m) To (m)

385.586

GCD-1

I 31.25 33.25 1.27 <100

II 37.50 38.00 0.35 0.60

III 50.50 54.00 2.13 0.20

IV 84.90 85.9 0.70 1.00

V 90.70 92.00 0.91 0.60

VI 99.15 99.65 0.35 1.60

VII 100.50 102.20 1.19 0.95

VIII 110.50 111.15 0.46 1.00

IX 123.95 124.45 0.38 0.40

X 125.45 125.95 0.38 1.00

XI 133.90 134.40 0.35 0.60

R.L. at

Collar

(m)

Mineralised

Zone


(m)

Au


381.676

(GCD-02)

I 54.40 54.90 0.38 0.80

II 80.25 80.95 0.54 1.00

III 86.25 86.45 0.15 3.00

R.L. at

Collar

(m)

Mineralised

Zone


(m)

Au


6

399.733

(GCD-3) I 100.15 103.35 2.44 ND

II 110.85 113.35 1.90 ND

R.L. at

Collar (m)

Mineralised

Zone


(m)

Au


391.024

. GCD-4: I 56.65 57.55 0.63 -

II 75.10 79.00 2.73 -

III 123.45 125.30 1.30 ND

IV 144.70 146.00 0.91 -

R.L. at

Collar

(m)

Mineralised

Zone


(m)

Au


379.746

GCD-5 I a) 28.95

b) 29.95

29.45

30.45

0.35

0.35

1.00

0.20

II a) 31.05

b) 32.15

c) 33.05

31.55

32.65

34.10

0.35

0.35

0.74

0.20

0.20

3.50

R.L. at

Collar

(m)

Mineralised

Zone


(m)

Au


374.386

GCD-6 I 105.35

106.65

106.15

107.15

0.63

0.36

0.40

1.00

II 111.50 112.00 0.36 0.60

III 117.30 118.00 0.49 0.60

R.L. at

Collar

(m)

Mineralised

Zone


(m)

Au


374.908 I 40.60 41.20 0.46 0.20

II a) 53.60

b) 56.55

54.95

57.05

0.95

0.32

0.45

0.20

III 61.90 62.90 0.50 0.60

IV 70.10 70.60 0.39 0.20

V 92.40 92.90 0.39 0.80

R.L. at

Collar

(m)

Mineralised

Zone


(m)

Au


378.780 I a) 47.50

b) 51.50

48.00

52.00

0.39

0.39

0.20

0.20

II 68.30 69.25 1.25 0.27

III 101.20 101.70 0.36 0.20

IV 123.25 123.75 0.36 0.20

R.L. at

Collar

(m)

Mineralised

Zone


(m)

Au


374.386 I 26.00 28.00 1.40 -

II 110.15 117.85 5.39 -

Table-II: Details of Exploration work for gold in Chakariya Block. (after Jha et.al)

7

Large scale geological mapping of an area of about 25 sq km on 1:10,000 scale was carried

out in parts of toposheet no. 63L/11 forming western extension of Chakariya gold mineralised

belt, Sidhi district, M.P. The rock types present are phyllite, tuffaceous phyllite, Banded Iron

Formation, Banded Ferruginous Chert, ferruginous phyllite with lenticles of Banded Iron

Formation and lensoidal bodies of amphibolite rocks of Dudhmaniya Formation of

Mahakoshal Group. The gold mineralisation in western extension of Chakariya gold

mineralised belt is associated with phyllite interbedded with chert and BIF sequence of

Dudhmaniya Formation. It seems to be syn-sedimentary, remobilised along foliation planes

and along fold closures during F1 deformation, further remobilization of mineralised quartz

veins emplaced during second phase of deformation. The gold values of 0.8 gm/t and 1.2

gm/t (F.A.) are recorded from the BIF band in between Bagaiya – Dhaurahwa area. Presence

of gold in bed rock samples in the Chakariya area in the eastern part of Sidhi district was

indicated by (Banerjee and Keshava Prasad, 1997)

The Geochemical mapping was carried out by Bage et al. (2016) in Toposheet No. 63L/11

and 64I/05 (B1-Quadrant) in parts of Sidhi district of Madhya Pradesh and Mirzapur district

of Uttar Pradesh. During the field work a total of 800 sq. km. area was geochemically

mapped on 1:50,000 scale with the collection of eight hundred (800) stream sediment/slope

wash samples on 1 km X 1 km gridding pattern. Ten (10) soil C-horizon samples, ten (10)

Regolith samples, ten (10) water samples and ten (10) HMS samples are collected from every

5‟ x 5‟ gridding pattern. Ten (10) PS and ten (10) XRD samples were also collected from

important litho units present in the area

II. Details of aero-geophysical and Geophysical mapping, if any

Aero-geophysical and Geophysical Mapping in parts of Chakariya block has not been

covered yet.

III. In case the area forms part of the area covered earlier by exploration then same should

be shown in a map with proper scale.

Detailed Mapping was carried out during FS 1999-2001 by Jha et al. A total of 1.0 sq

km area was mapped on 1:1,000 scale. The 1:1,000 scale was selected for bringing out the

minute details particularly pertaining to the quartz veins which are very thin in nature. The

topographical map on the same scale was prepared with contour interval at 2m. The

maximum height in the area is around 414.00m above m.s.l. and the minimum elevation is

348.00m above m.s.l. represented by southern slopes of the Chakaria block. The detailed map

is shown in plate-I.

8

Plate-I: Detailed Geological map of Chakariya Block, Singrauli District. Jha et.al (1999-2001)

9

V.GEOSCIENCE INVESTIGATION:

V.01: Regional Geology

V.01.1: Brief Regional Geology

Mahakoshal Supracrustal belt: The ENE-WSW trending Mahakoshal supracrustal belt is

a prominent fault controlled asymmetrical rift basin (Roy and Bandyopadhyay 1990) (GSI

Bulletin Series-A , No. 61), which occur in the northern part of the CITZ. It is bounded by SNNF

in the north and SNSF in the south and extends for more than 600 km along strike. SNNF

separates the Mahakoshal belt from the Proterozoic Vindhyan basin in the north, with

intervening local slivers of Sidhi gneisses, which is regarded as the equivalent of Bundelkhand

granite. SNSF separates the Mahakoshal from vast expanse of Proterozoic granites and gneisses

of CITZ and is covered for the most part by Deccan Trap, Gondwana sediments and Quaternary

alluvium. According to Roy et al Mahakoshal rift basin (ca. 2.2) may be a back-arc rift related to

north-directed subduction of the oceanic crust of the BC below BKC. The magmatism coupled

with the contractional tectonic setting and accompanied low pressure metamorphism suggests

that the Mahakoshal Basin might have initiated as a back arc rift in BKC.

According to Devrajan et.al 2002, The Mahakoshal supracrustals were thrusted northerly along

the two bounding faults, SNSF and SNNF and the syn-depositional Amsi -Jiyawan fault. Large

scale denudation of the evolving and uplifting fold belt led to the deposition of the Vindhyan

Supergroup in the foreland basin to north. Inversion along syn depositional Amsi –Jiyawan fault

led to the deposition the lower part of the Semri Group, i.e., the „Jungel Group‟ initially by slope

processes and subsequently by braided rivers over part of the evolving Mahakoshal fold belt

itself.

The Mahakoshal Belt is dominated by metasediments with subordinate metavolcanics mainly of

tholeiitic composition. The spatial distribution of the rocks in the Mahakoshal Belt shows

considerable variation. The lithoassemblage of the Mahakoshal belt is represented by quartzite-

carbonate-chert- BIF-greywacke-argillite-mafic volcanics. According to Roy and Devrajan

(2000), the Mahakoshal belt was initiated as pericratonic basin along the southern margin of the

BKC, in which shallow marine quartzite-carbonate-pelite-chert –BIF were deposited.

Subsequently, the basin underwent rifting aided by thermal doming, which resulted in

emplacement of tholeiitic magma. Uplifting of the rifted margins led to the deposition of debris

flow deposits, which culminated in the deposition of the argillite-BIF during the thermal

10

relaxation stage. Lithological and geochemical characters clearly indicates a continental rift

setting for the Mahakoshal basin. Lithofacies distribution points to asymmetrical rifting and

younging of the basin towards south, (Roy and Devrajan, 2000). The rocks of Bundelkhand

Craton which forms the basement of Mahakoshal supracrustal belt, yield Rb-Sr ages upto ca.2.2

Ga ( Sarkar et.al 1995). Thus the rifting may have post dated ca. 2.2 Ga. (A. Roy et.al 2003).

Detailed account of lithostratigraphy and structure has been dealt by several workers viz.

Goyal and Jain (1975), Mathur and Narain (1981), Nair et al., (1995), Bandyopadhya et al.,

(1995), Roy (2000), and Tripathi et al (2013). The Mahakoshal sequence in southern parts

between Dudhi and Gulaldih described by earlier workers under Parsoi Formation (Goyal and

Jain, 1976) are reinterpreted by Khan et al., (1994) as chemogenic sediments representing older

Agori Formation. This sequence is also referred under Dudhmaniya Formation (Roy and

Devarajan, 2000). Mishra and Tripathi (1990) carried out mapping in T.S. No. 63L/3 and 11 on

1:50,000 scale and opined that Mahakoshal Group of rock was developed in rift environment

during Late Archaean - Early Proterozoic.

11

V.01.2: Regional Stratigraphy

Table-III: Lithostratigraphy of Mahakoshal Group in Eastern Part, (After

Devarajan (1997)

Sleemanabad area Chitrangi-Gurahar Pahar-

Dudhmaniya area

Intrusives Quartz porphyry, quartz reefs,

mafic dykes

Gold bearing quartz-carbonate

veins, quartz reefs, dolerite,

Granite-granodiorite-intrusive

plutonic belt along the southern

margin, Jhigradandi granite and

equivalents. Lamprophyre and

syenite in Sidhi

Dudhamaniy

a Formation

Not exposed Alternating sequence of BIF (mixed

oxide-sulphide-silicate facies) and

phyllite

-------- Gradational contact--------

Parsoi

Formation

Dominantly phyllite with bands

of greywacke, quartzwacke,

quartz arenite and basal

polymictic conglomerate.

-Unconformable Contact-

Dominantly phyllite with bands of

greywacke, quartzwacke, quartz

arenite. Occasional presence of

carbonaceous phyllite.

---------Amsi-Jiawan fault--------

Sleemanabad

Formation

Mostly carbonates (stromatolitic

at many places) with bands of

bedded and massive chert,

rare manganiferous chert, BIF,

quartz arenite and metabasalt

in the upper part, ultramafic

dunite dyke

Quartz arenite and carbonate in the

lower part, massive and bedded

chert, BHJ, highly carbonated and

fragmented metabasalt with

pillows and suspected pahoehoe

toes, BIF, thin argillites.

Ultramafic plugs.

Sidhi

Gneissic

Complex

Gneissic complex with associated mafic, ultramafic rocks and

metasediments.

(after Devrajan et. al 1997)

V.02: Detailed Geological Exploration:

V.02.1: Detailed Mapping on 1:1000 Scale

The description of detailed mapping is included in previous exploration along with map.

V.02.2: Description of Rock Types:

Important lithologies observed in the block are:

1. Phyllites

2. Banded Iron Formation (BIF)/ Banded Ferruginous Chert (BFC)

3. Quartz veins, 4. Scorodite

12

Phyllites:

Phyllites are the most dominant litho unit exposed. The green phyllites occupy the

southern and western part while arenaceous/slaty phyllites occur towards the north-central part.

Near the BIF/BFC and phyllite contacts, ferruginous/brecciated phyllite bands are present.

Green phyllite: Khaki-green to dark-green coloured, well-foliated phyllite is the main

constituent of the argillite suite of rocks. It is extremely fine grained mainly composed of

plagioclase, relict hornblende, biotite, quartz and iron oxides. The green phyllite with well

developed foliation planes, is the most favourable hosts for quartz veins.

Tuffaceous phyllite: Reddish-grey to greyish-white, less foliated, friable, tuffaceous phyllites

occur in association with either ferruginous phyllite near CT-01

.

Field Photograph-I: Quartz vein grey along the foliation in greenish phyllite, south of

chakariya Block. Longitude: 82°44´5.5 ´´ latitude: N24°16´57.1´´

Arenaceous/slaty phyllite:

Dark greyish-green arenaceous phyllite, hard and compact, with well developed slaty cleavage,

occupies the north-central part of the block. Large outcrops of arenaceous phyllite are

Quartz vein

Grey

Greenish

phyllite

13

prominently present in the block due to its hard nature. As compared to the green phyllite,

arenaceous phyllites are less traversed by quartz veins. Arenaceous phyllite contains greater

amount of quartz grains

2. BIF/BFC:

Prominent long, narrow, linear ridges of BIF/BFC in northern part of Chakariya block. They

stand out prominently due to their hard nature as compared to the surrounding phyllites. Hence

they represent highest elevation in this block. BIF are the most characteristic sediments in the

„Greenstone/ Sedimentary Belts‟ and are referred to as any sedimentary rock whose principal

chemical characteristic is anomalously high content of iron (Trendall & Morris,1983). Oxide

Iron Formation is most dominant BIF in this block where alternate bands of white to greyish

chert and magnetite and/or haematite constitute BIF. The thickness of individual chert band

varies from 50cm to 2m while the magnetite/haematite layers range in thickness between 1cm

and 5cm.

Asymmetric micro-fold was observed in BIF wherein hinges are eroded and limbs are preserved.

Bearing of BIF in this section is 106°/86° towards NE.

Field Photograph-II: Banded Iron ore Formation (BIF) exposed around north of Chakariya

Block, longitude: 82°43´0.2 ´´ Latitude: N24°16´45.3´´

BIF

14

3. Quartz veins:

Quartz veins of varying dimension and colours are present in the Chakariya Block.

Predominantly there are three varieties of quartz veins in the block viz. Grey to black coloured

quartz veins (QVG), white coloured quartz veins (QVW) and mixed grey to white quartz veins

(QVM). The QVW veins are comparatively thicker (up to 6m) while QVG and QVM have 25cm

to 50cm and occur as irregular and discontinuous bands mainly within phyllites and rarely in

BIFs. The quartz veins are generally aligned parallel to the regional foliation direction i.e.

WNW-ESE but it is also noticed that few small quartz veins cut across this direction especially

north of GCD-07.

4. Scorodite:

Khan et al., (1994) reported occurrence of scorodite as a path finder for gold mineralisation, for

the first time in an auriferous zone of Gulaldih area. In Chakariya Block Small, isolated,

discontinuous outcrops of scorodite are present all along 700m strike length in WNW-ESE

direction between trenches no. CTE-4 - T-14 in the east through south of T-16, T-21, T-

23 and upto T-56 in the central part. Scorodite band is in contact with the BIF band in the west

and in the eastern side it is associated with ferruginous/tuffaceous phyllites. It is probable that the

scorodite band is at the contact of phyllite/BIF units. Such scorodite bands occurring near the

interface of incompetent/competent rock units are favourable loci for gold mineralisation.

Scorodite is a supergene mineral, resulting from the oxidation of arsenopyrite and other arsenic

bearing minerals and therefore can be used as a pathfinder mineral for gold. Scorodite is

hydrated iron arsenate mineral. It is found in hydrothermal deposits which ultimately weathers to

limonite (Field Photograph-III).

15

Field Photograph-III: Scorodite outcrop observed near trench CT-09,Chakriya Block

Longitude: 82°42´45´´ Latitude: 24°17´3.5´´

V.02.3: Petrological and petrochemical studies, Studies including SEM-EDX, EPMA,

Whole Rock analysis & Trace Element Chemical Analysis.

Petrological studies: Under microscope the phyllite is fine grained and shows well developed

foliation plane defined by quartz fish and muscovite/sericite. The photomicrograph of phyllite

with quartz fish grains shows dextral sense of movement (Photomicrograph- I and II).

Discontinuous patch

of scorodite band

16

Photomicrograph no-I: Photo micrograph of

phyllite with quartz fish structure showing

dextral sense of movement in ppl.

Photomicrograph no-II: Photo micrograph of

phyllite with quartz fish structure showing

dextral sense of movement in xpl.

Photomicrograph no-III: Photo micrograph

in polished section of arsenopyrite in Sample

no. 18

Photomicrograph no-IV: Photo micrograph

in polished section of pyrite in Sample no. 20

Photomicrograph no-V: Photo micrograph in

polished section of pyrite in Sample no. 17

Photomicrograph no-VI: Photo micrograph

in polished section of chalcopyrite in Sample

no. 20

Arsenopyrite Pyrite

Pyrite Chalcopyrite

17

Photomicrograph no-VII: Photo micrograph

of Vein filled Chalcopyrite in ppl

Photomicrograph no-VIII: Photo micrograph

of Vein filled chalcopyrite and arsenopyrite in

ppl

Photomicrograph no-IX: Photo micrograph

of pyrite in ppl

Photomicrograph no-X: Photo micrograph of

chalcopyrite and arsenopyrite in ppl

Photomicrograph no-XI: Photo micrograph

of arsenopyrite in ppl

Photomicrograph no-XII: Photo micrograph


Cpy

Cpy

Apy

Py

Apy

Cpy

Apy

Apy

18

Photomicrograph no-XIII: Photo micrograph

of chalcopyrite and arsenopyrite in ppl

Photomicrograph no-XIV: Photo micrograph

of chalcopyrite and pyrrhotite in ppl

Photomicrograph no-XV: Photo micrograph

of chalcopyrite and pyrrhotite in ppl

Photomicrograph no-XVI: Photo micrograph

of pyrrhotite host and chalcopyrite in ppl.

Photomicrograph no- XVIII: Photo micrograph of arsenopyrite in ppl

Photomicrograph no-XIX: Photo micrograph


Petrological study for polished section was carried out. Under microscope arsenopyrite and

Pyrite is shown in Photomicrograph no. III, IV, V, VI, VII, VIII, IX, X, XI, XII, XIII, XIV, XV,

XVI. In Photomicrograph no. XV and XVI, it is showing inclusion of minerals in host pyrrhotite

(light grey to dull grey, rhombohedral shaped) another anhedral shaped, yellow coloured mineral

may be Chalcopyrite. All minerals in the photographs showing very high reflectance. There is

fracture filling in the host.

Apy

Cpy

Cpy

Po

Cpy

?

Pht Pht

Cpy

Apy

Apy

19

EPMA: Electron probe microanalyzer (EPMA) or Electron Micro Probe Analyzer (EMPA).

Mineral chemistry of sulphides in the major lithounits was studied through electron probe

analysis. This analysis permits for the quantitative measurement of the samples in terms of

variation in chemistry within a single grain and identification of different phases. The EPMA

analysis was carried out in National Centre of Excellence in Geoscience Research Lab,

Bangalore. The instrument was operated at 15 kV acceleration voltage and 15 nA current for

analyzing silicates and 20kV acceleration voltage and 20 nA current for sulphides. The analytical

results are given in Annexure-XV-A-E. Lithounits like Phyllite, Arenite were selected and

probed for the identification of different sulphide phases and associated PGE phases. The

electron probe analysis of arenite, arenaceous phyllite and quartz vein was carried out to identify

different sulphide phases. Majority pyrite, pyrrhotite, arsenopyrite and chalcopyrite define

sulphide phases (Photomicrograph nos XIX,XXI,XXII,XXIII,XXIV,XXV,XXVI,XXVII,

XXVIII). In charakriya block association of gold occures with sulphide phases of Arsenopyrite,

Pyrite,Cpy and Po. Gold in Chakariya block does not occur in native form but occurs as nano-

sized grains (not visible with naked eyes or microscope) embedded within micro-grains of

ususally arsenopyrite and others.

Photomicrograph no.- XIX: BSE image showing association of Arsenopyrite (Apy) with grains

of Gold (Au) and Bismuth (Bi) in Quartz vein Grey in slide no.05

20

Gold and silver grains are seen associated with the sulphide phases. The spot values of gold have

been observed associated with bismuth ranges from 0.11% to 63.37% and found associated with

arsenopyrite. (Photomicrograph no. XX).

Photomicrograph no.- XX: Spot values of Au with peak showing presence of Gold.

21

Photomicrograph no.- XXI: BSE image showing association of Arsenopyrite (Apy) with grains

of Gold (Au) and Bismuth (Bi) in Quartz vein Grey.

Photomicrograph no.- XXII: BSE image showing association of Pyrrhotite (Po) and Pyrite (Py)

in Quartz vein Grey.

22

Photomicrograph nos XIX, XXI, XII, XIII, XIV, XXV, XVI shows pyrrhotite, Arsenopyrite,

Chalcopyrite and pyrite. Quartz grains and ilmentite have been intruded along the boundaries of

pyrrhotite and Arsenopyrite which may have come at later stage stage of crystallisation. The

association of arsenic and bismuth is reported from a-plethora of hydrothermal deposits all

around the world. Experimental work shows that the solubility of gold in hydrothermal solutions

increases with the concentration of arsenic. Bismuth and arsenic are homologs having similiar

property and structure and commonly occur together in sulphide phases such as arsenopyrite and

can be positively correlated with gold. Gold is associated with Arsenopyrite as observed in

analysis. In photomicrograph no. XXVII, there is association of Zircon, Monazite,Thorium and

Xenotime of REE phases. Small grains of monazite and bismuth are also present in samples.

REE represents incompatible phases which are concentrated in rocks formed during later

episodes of magmatic crystallization or early episodes of partial melting. As the mineralizaiton in

chakariya block is of hydrothermal type therefor it may have formed during later episode of

magmatic crystallization. photomicrograph no. XIX, XXI shows the presence of arsenopyrite

phases with few grains of Bismuth. Native bismuth are also present in arsenopyrite.

Photomicrograph no.- XXIII shows association of Ilmentite, Zircon,Tungston,Yittrium, and

Thorium in pyrrhotite, chalpyrite, pyrite and arsenopyrite phases. There is presence of

arsenpyrite and pyrrhotite phases which is showing distinctive boundaries. REE phases are

mostly present along the fracture planes which may have come as later stage of crystallization.

Statistical analysis of core and bed rock samples in chakariya block also supports the corollary of

Bi-As-Au association. Photomicrograph no. XXII,XXIII shows corona strucure with pyrrhotite

rimmed by pyrite which is formed as an alteration product of pyrrhotite, also occuring along the

margins and fracture within pyrrhotite. It also shows the partial or completely replacement of

pyrrhotite by pyrite Most of the suphide phases observed during the EPMA studies are anhedral

having irregular and blurr margins suggesting rapid cooling of hydrothermal solution and

subsequent haphazard growth of suphide phases during cooling.

In chakariya block Au occurs as altered form of arsenopyrite called scorodite and along

secondary foliaton of phyllite and primary foliations (banding) of BIF. The source of gold in

phyllite and BIF is also a result of perculation of hydrothermal emanations along foliation

planes ( whether primary or secondary) of these rocks. In Chakariya block greenish phyllite and

23

QVG contains arsenopyrite, pyrrhotite, chalcopyrite, pyrite, scorodite mineral grains. These

grains preserve chemical information adopted during their formation and subsequent alteration.

Photomicrograph no. - XXIII: BSE image showing association of Pyrrhotite (Po) and Pyrite

(Py) in Quartz vein Grey.

Photomicrograph no. – XXIV: BSE image showing association of Pyrrhotite (Po) and Pyrite

(Py) in Quartz vein Grey.

24

Photomicrograph no. - XXV: BSE image showing association of Arsenopyrite (Apy) and

Pyrite (Py) in phyllite.

Photomicrograph no. - XXVI: BSE image showing association of Arsenopyrite (Apy) and

Pyrrhotite (Po) in Arenaceous phyllite.

25

Photomicrograph no.– XXVII: BSE image showing association of Arsenopyrite (Apy) and

Pyrrhotite (Po) in Arenaceous phyllite

Photomicrograph no.– XXVII: BSE image showing presence of chalcopyrite in grey quartz

vein.

26

V.02.4: Structure:

Primary Planar Structures: These are represented by the compositional and colour banding

preserved in the banded iron formation. It is denoted by alternating silica (chert) and ferruginous

bands. Chert band is regarded as S0. The trend of S0 is WNW-ESE in the limbs.

Secondary Planar Structures:

The secondary planar structures include foliation such as mineral schistosity. S0 and S1 are

parallel in the limbs and cross-cutting in the hinge portion.

(A) Foliation: The most important secondary structural element is Foliation (S1). It is due to

orientation of flaky minerals. The foliation is parallel to bedding in limbs of folds. The second

set of Foliation (F2) is at an acute angle to S1. Based on their relative interrelationship, these are

termed as S1, S2 etc.

JOINTS: The rocks of the mapped area are highly jointed. Some of the joints appear to have

been developed due to shearing or faulting and can be designated as master joints along WNW-

ESE direction. The following trends are recorded in the Chakariya Block:

(a) N-S/80° dip due east or west

(b) NE-SW/moderate to high dip towards both sides

(c) NW-SE/moderate to high dip towards both sides

(d) ENE-WSW/High dip towards south-east.

The rocks of Mahakoshal Group have suffered at least three phases of deformation. First

deformation resulted in very tight isoclinal fold (F1) with development of schistosity (S1) which

is parallel to S1. The second phase has evolved (F2) folds, which are marked by wide spaced

schistosity (S2) making an acute angle with S1. The youngest deformation is (F3) which is

represented by open folds of all scale with axis in N-S or NNE-SSW direction. (after Srivastava

et.al, FS: 1994-96)

V.02.5: Metamorphism

Mahakoshal Group of rocks exhibit greenschist facies metamorphism indicated by presence of

chlorite, muscovite, sericite quartz feldspar epidote and calcite minerals.

V.02.6: Mineralogy of the Mineralized zones and ore textures.

To understand the mineralogy of the ore zone and texture, Bed Rock Samples, EPMA, SEM-

EDX samples were collected during the course of field work. The samples were also sent to

27

respective chemical division. The important ore zone and texture can be distinguished in these

lithologies after the microscopic study.

Quartz vein grey and Quartz vein mixed: Quartz veins are present in Chakariya which are of

various dimension and colours. The quartz veins are generally aligned parallel to the regional

foliation direction i.e. WNW-ESE but it is also noticed that few small quartz veins cut across this

direction. Quartz veins are mainly confined into southern part of the block. Gold bearing quartz

veins are parallel to metapelites (Phyllite) and are epigenetic in nature. Development of quartz,

sericite, and chlorite alteration minerals in the quartz veins confirms that silicification,

sericitization, and chlorization processes are associated with gold mineralization. The results of

gold bearing quartz veins analysed with AAS are shown in (Annexure-VII). The concentration of

gold varies from 0.72 to 9.16 ppm. This signifies that the quartz veins are mineralized with gold.

The concentration of Gold in 07 bed rock samples is ranging from 2.06 ppm to 9.16 ppm. The

encouraging results are also from the samples of Scorodite. Secondary alteration of the

arsenopyrite has given rise to a powdery arsenate termed scorodite (Jha et.al 2000). Specks of

arsenopyrite were observed during sampling, therefore it can be inferred that gold and As

bearing minerals (Arsenopyrite+Pyrite) correlate positively, and may have played an important

role in the concentration of Au in hydrothermal system.

V.02.7: Pitting and Trenching.

A total of 50 cubic metres trenching has been carried out in Chakariya Block in 04

trenches. The length of trenches varies from 07.00 to 27.00 metres. The trenches were cut across

the mineralised zones. Each trench was of 1 meter width and 1 meter depth. The location of

trench has been estimated from the prepared cross-section of boreholes to observe the continuity

of mineralized zone on the surface with respect to the suspected mineralized zone. Channel

sampling was carried out for the collection of samples from the trenches. Channels were cut

horizontally in the lower portion of the walls of the trenches. The width of channel was about

5cm and the depth was around 3 to 5cm, and chips, dust etc were collected together to form

sample. The sample length was one metre depending upon mineralisation. Trench samples were

collected from south to north. The trenches were aligned in SSW to NNE direction. The samples

were processed at camp and sieved with -120mesh. The summarised accounts of each trench

with analytical data are given in annexures No-II, III, IV and V. The trenches are described from

west (CTR-1) to east (CTR-4).

28

Field Photograph-IV: Trench boundary of CTR-01 and CTR02 marked across the

scorodite bands along the azimuth of CBH-01 at Chakariya block, distt: Singrauli

Field Photograph-V: Trench boundary of CTR-03 along the azimuth of CBH-04

marked at Chakariya block, distt: Singrauli

29

Field Photograph-VI: Trench CTR02 marked along the azimuth of CBH-01 at

Chakariya block, distt: Singrauli

Field Photograph -VII: Trench boundary of CTR-03 along the azimuth of CBH-04

marked at Chakariya Block, Distt: Singrauli

30

TRENCH: CTR-01

This trench was excavated in the phyllitic zone. A total of 07 samples have been submitted

and result has been received. The logging details are given in Annexure- II. Greenish/Grey

phyllite is dominant in this trench. The analytical result doesn‟t show any significant values

of gold in Trench CTR-01.

Figure-I: Trench CTR-01 along the azimuth of CBH-01 at Chakariya Block, Distt: Singrauli

TRENCH CTR-02

This trench was excavated in the phyllite, BIF and ferruginous phyllite zone along with few

thin scorodite bands. The samples have been submitted for geochemical analysis. Gold value

has been recorded in one of the samples. The logging details are attached in Annexure-III.

31

Figure-II: Trench CTR-02 along the azimuth of CBH-01 at Chakariya Block, Distt: Singrauli

TRENCH CTR-03

This trench was excavated in the phyllitic zone. The samples have been submitted for

geochemical analysis and result has been received. The analytical result doesn‟t show any

significant values of gold in Trench CTR-03. The logging details are attached in Annexure-

IV.

Figure-III: Trench CTR-03 along the azimuth of CBH-04 at Chakariya Block, Distt: Singrauli

32

TRENCH CTR-04

This trench was excavated in the phyllitic zone. The samples have been submitted for

geochemical analysis and result has been received. The analytical result doesn‟t show any

significant values of gold in Trench CTR-04. The logging details are attached in Annexure-

V.

Figure-IV: Trench CTR-04 along the azimuth of CBH-08 at Chakariya Block, Distt: Singrauli

Out of the total samples submitted for geochemical analysis, positive gold value of 3.2 ppm have

been recorded in the sample 02/14/PTS/CHK/2016-17 which conforms a scorodite band and

alteration of BIF and phyllite. Cu, Pb, Zn, Co, Ag, Ni, Mo, As, Bi and Au have been analyzed.

The correlation matrix shows that Au is negatively correlated with Zn and positively correlated

with Cu, Pb, Ag, Mo and As and shows very meagre correlation with Bi. Ag shows good

correlation with Au, As, Bi and Mo. Zn shows good correlation with Pb and Ag. As and Bi have

high positive correlation between them. The descriptive statistical analysis and Correlation

matrix is given in Annexure- IX.

V.02.8: Sampling

Trenching: The sample collected from the trench is on 1m interval. BRS Samples: The

Chakariya Block was divided into gridd pattern and the samples were collected from rocks

available in grids.

Core- Samples.: The core-samples were collected from the drilled cores. The length of samples

is 25cm, 30cm and 50cm.

33

V.02.9: Discussion of results of chemical analysis of samples.

Geochemical results of samples are given in annexure VI-A, VII, VIII and XIV-A.

V.02.9.1: Discussion of results Bed Rock Samples:

Geochemical analytical results of 50 BRS samples has been received for elements Cu, Pb, Zn,

Co, Ag, Ni and Au. The value of Cu ranges from <10ppm to 760ppm with mean of 95ppm,

values of Pb ranges from <10ppm to 210ppm with mean 74ppm. Values of Zn ranges from

<10ppm to 120ppm with mean of 39ppm. Values of Co ranges from <10ppm to 50ppm with

mean of 19ppm. Values of Ag ranges from <1ppm to 10ppm with mean of 2ppm. Values of Ni

ranges from <10ppm to 100ppm with mean of 29ppm. Cu shows poor correlation with Ag,

negative correlation with Zn and minor positive correlation with Co, Pb, Ni and Au. Pb shows

negative correlation with Zn and Ni and good correlation with Au, Ag and Co. Au shows good

positive correlation with Pb and negative correlation with Zn.

The analytical results of Bed Rock Samples has shown encouraging results. Values of Au in samples of

Scorodite band ranges from 1.26ppm to 9.16ppm. Scorodite bands are good pathfinder for gold

mineralization worldwide, in Chakariya block also has shown promising Au values whereas Quartz vein

grey shows values 0.72ppm to 2.39ppm. This signifies that the quartz veins are also mineralized with gold

in this region. The descriptive statistical analysis and Correlation matrix is given in Annexure- VI.

V.02.9.2: Discussion of results Petrochemical samples

Petrochemical analysis has been carried out by pressed pallet method. The bulk-rock chemical

data for metasediments of Dudhmania Formation (06 nos. of phyllite and 04 nos. of samples

from Scorodite band) is shown in annexure-XII(A). The Al2O3 content in samples range from

0.76 to 27.99 with mean of 12.94 and median of 15.78. The standard deviation is 3.44 %. In

samples alumina shows negative skewness (0.09) and kurtosis is -1.99. The Fe2O3 content in

samples ranges from 4.7 to 28.24 (range 23.54) with mean of 15.42 and median of 14.91. The

standard deviation is 9.74. In samples iron shows positive skewness (0.1) and kurtosis is -

2.24.TiO2 content in samples ranges from 0.05 to 0.07 with mean of 0.38 and median of 0.47.

The standard deviation is 0.08. In samples TiO2 shows positive skewness (-0.27) and kurtosis is -

2.01. The CaO content in samples range from 0.15 % to 1.65 % with mean of 0.44 % and median

of 0.15%. The standard deviation is 0.49%. In samples calcium show positive skewness (2.01)

and kurtosis is 3.94. The MgO content in samples range from 1.40 to 7.32 with mean of 3.86 and

median of 2.05. The standard deviation is 2.63. In samples magnesium shows positive Skewness

34

(0.48) and kurtosis is -2.19. Manganese is relatively abundant with an average upper crustal

abundance of 600 mg kg-1 and a bulk continental crust average of 1400 mg kg-1 (McLennan and

Taylor 1999) of the transition metals, only Fe occurs at higher concentrations in the Earth‟s

crust. The MnO content in samples varies from 0.02 to 0.22 with mean of 0.02 and median of

0.06. The standard deviation is 0.02. In samples MnO shows positive skewness (+1.05) and

kurtosis is 0.42. The Na2O content in samples ranges from 0.03 to 0.75 with mean of 0.16 and

median of 0.10. The standard deviation is 0.22. In samples Na2O shows positive skewness (2.39)

and kurtosis is 6.43. The K2O content in samples range from 0.03 to 8.60 with mean of 3.18 and

median of 1.89. The standard deviation is 3.39. In samples K2O show positive skewness (0.45)

and kurtosis is -1.74. Phosphorus is the eleventh most abundant element in the Earth‟s crust,

constituting approximately 0.1% by weight. The P2O5 content in samples varies from 0.04% to

0.33% with mean of 0.14% and median of 0.12%. The standard deviation is 0.09%. In samples

P2O5 shows positive skewness (1.35) and kurtosis is 1.60. Barium is a lithophile element and is

the 14th commonest element in the Earth‟s crust. In sedimentary rocks the concentration of Ba is

related to the abundance of K-feldspar, clay minerals and hydrous Fe and Mn oxides, on to

which the element may be adsorbed (Wedepohl, 1978). The Barium content in samples ranges

from 119 to 2408 with mean of 658 and median of 513. The standard deviation is 698. In

samples Barium shows skewness (1.95) and kurtosis is 4.54. High values of barium 2408mg/kg

has been observed in one sample of phyllite. High values of barium may have come as

substitution for potassium in alkali feldspar present in phyllite. Analytical results of Scorodite

band samples shows less amount of SiO2 and relatively high Fe2O3 content as its common

hydrated iron arsenate mineral. The crustal abundance of Nb is estimated to be 20 mg kg-1

(Wedepohl, 1978,). The Niobium content in samples ranges from 5 % to 46% with mean of

25.36 % and median of 23 %. The standard deviation is 8.76%. In samples Niobium shows

skewness (0.41) and kurtosis is (-0.83) with modal class of 17 %.

Chemical Discrimination Diagrams for rocks of Dudhmania Formation

The rocks of Dudhmania Formation belongs to Mahakoshal Group of rocks. These rocks are

metasedimentary in nature. Therefore chemical behaviour has been attempted to have a basic

idea of the source resulted in the accumulation of these sediments. Since Major and trace

elements can be subject to important mobilization and fractionation during weathering, mineral

accumulation, diagenesis and metamorphism.

35

.

Figure-V: Log Na2O/K2O vs. Log SiO2/Al2O3 binary geochemical classification diagram for

Phyllite of Chakariya Block {after Pettijohn et al., 1972 (indicated by dashed lines); modified

and boundaries redrawn by Heron, 1988 (indicated by solid lines)

The analysed samples have lower alkali vs. silica ratio (Log SiO2/Al2O3= 0.26 to 1.19). Log

K2O/Na2O ratios are also variable, ranging from -1.6 to 0. Thus in the Pettijohn et al., (1972)

diagram based on of log (Na2O/K2O) vs. log (SiO2/Al2O3) content the Dudhmania Formation of

Mahakoshal Group of sediments can be classified as arkose and lithic arenite with only three

samples are classified as lithic arenite and seven as arkose. (Figure-V). The high content of Na2O

and K2O appears to be due to the predominance of albite and K-feldspars in the sediments. The

samples collected from scorodite bands falls in lithic arenite zone whereas the phyllitic samples

classifying as arkose.

36

Figure-VI: Al2O3 vs. TiO2 and Na2O vs. K2O binary geochemical classification diagrams for

rocks of Dudhmania Formation (Mahakoshal Group of rocks)

Figure-VII: (K2O/Na2O vs. SiO2 and K2O vs. Na2O binary diagram for Dudhmania Formation

of Mahakoshal Group of sediments (after Roser and Korsch, 1986). ARC is the oceanic island-

arc margin field; ACM is the active-continental margin field; PM is the passive margin field.)

Metasedimentary samples under study are classified as quartz rich with K2O/Na2O>1.

The quartz rich samples suggest the passive margin settings of their deposition. A total of 10

samples belongs to passive margin zone in K2O vs. SiO2. The passive margin (PM) settings

suggest the mineralogically mature (quartz rich) sediments deposited in plate interiors at stable

37

continental margins or intracratonic basins (equivalent to the „trailing-edge tectonic settings of

Marynard et al., 1982; Kepp et al., 1983).

Figure-VIII: The logarithms plot of the weight ratios of SiO2/Al2O3 against (Na2O+CaO)/K2O

for Dudhmania Formation of Mahakoshal Group of rocks representing the chemical behaviour of

the samples (Garrels and Mackenzie, 1969).

The weight ratios of SiO2/Al2O3 against (Na2O+CaO)/K2O show positive correlation and suggest

the greywacke and argillaceous source for the deposition of rocks of Dudhmania formation.

The analytical results, descriptive statistics and correlation matrix of petrochemical samples are

annexed in Annexure-XII (A), XII (B), XII (C).

38

V.02.9.3: Discussion of results of Trench Samples

Total 50 cu m of trenching were excavated and 50 nos. of samples were analysed for Cu, Pb, Zn,

Co, Ag, Ni, Mo, As, Bi and Au. The correlation matrix shows that Au is negatively correlated with Zn

and positively correlated with Cu, Pb, Ag, Mo and As and shows very meagre correlation with Bi. Ag

shows good correlation with Au, As, Bi and Mo. The descriptive statistical analysis and Correlation

matrix is given in Annexure- IX.

Out of the total samples submitted for geochemical analysis, positive gold value of 3.2 ppm have

been recorded in the sample 02/14/PTS/CHK/2016-17 which conforms a scorodite band and

alteration of BIF and phyllite.

The trench samples generally shows Au values of <25 ppb, except for few samples which shows

values ranging from 30 ppb to 720 ppb which correspond to mineralised quartz vein in trench T1

and T2. The Ag values ranging from <1 ppm to 3 ppm, Cu values ranging from 10 ppm to 145

ppm, Pb values range from <10 ppm to 100 ppm, Zn values range from 5 ppm to 115 ppm.. Four

samples from trench-II shows arsenic values greater than >1%. Arsenic shows strong positive

correlation with Bismuth.

V.02.9.3: Discussion of results of Core Samples

A total of 100 samples were analyzed for Cu, Pb, Zn, Ni, Co, Ag, As, Bi, Mo and Au. In

borehole no. CBH-01 the anomalous values of As, Bi, Cu and Au are shown in Table-IV:

Sample No.

Fro

m To

S.

Le

ngt

h

BH

No. Lithology Description

As Bi Cu Au

001/CS/CBH01/

2016-17/JBP 34.9 35.2 30

CBH-

01

Arenite+QVG+Arseno

pyrite 1.50% 38.41 50 340

002/CS/CBH01/

2016-17/JBP

36.9

5

37.2

5 30

CBH-

01

Phyllite+ QVG

+Arsenopyrite 4965 7.61 0.69%

0.61

ppm

003/CS/CBH01/

2016-17/JBP

37.2

5

37.5

5 30

CBH-

01

QVG

+Scorodite+Chalcopyr

ite+Pyrrhotite+Arenite 7500 8.52 0.36% 410

004/CS/CBH01/

2016-17/JBP 53

53.2

5 25

CBH-

01

Arenaceous

Phyllite+Chalcopyrite

+Arsenopyrite 3.10% 10.19 435

3.10

ppm

005/CS/CBH01/

2016-17/JBP

77.0

2

77.3

2 30

CBH-

01

Arsenopyrite+Scorodit

e+Galena?+Chalcopyri950 1.91 75 210

39

te+Arenaceous

Phyllite

006/CS/CBH01/

2016-17/JBP

77.3

2

77.5

7 25

CBH-

01


e+Galena?+Chalcopyri

te+Arenaceous

Phyllite 5.00% 20.34 405

2.11

ppm

007/CS/CBH01/

2016-17/JBP

77.5

7

77.8

7 30

CBH-

01



te+Arenaceous

Phyllite 5.10%

276.7

3 145

8.12

ppm

008/CS/CBH01/

2016-17/JBP

77.9

7

78.2

7 30

CBH-

01



te+Arenaceous

Phyllite 1180 2.50 285 300

009/CS/CBH01/

2016-17/JBP

78.2

7

78.5

7 30

CBH-

01



te+Arenaceous

Phyllite 3080 2.54 330 180

010/CS/CBH01/

2016-17/JBP

84.8

7

85.1

2 25

CBH-

01

QVG+Phyllite+Arseno

pyrite 97 0.67 65 40

011/CS/CBH01/

2016-17/JBP

85.4

9

85.7

4 25

CBH-

01

Arenaceous

Phyllite+Arsenopyrite

+Phyllite 3% 2.88 55

2.04

ppm

012/CS/CBH01/

2016-17/JBP 87.5

87.7

5 25

CBH-

01

QVG+Phyllite+Arseno

pyrite 1060 0.29 50 140

013/CS/CBH01/

2016-17/JBP

88.9

5

89.2

5 30

CBH-

01

QVG+Phyllite+Arseno

pyrite+Chalcopyrite 1.50% 4.37 460

3.21

ppm

014/CS/CBH01/

2016-17/JBP

89.2

5 89.5 25

CBH-

01

QVG+Phyllite+Arseno

pyrite+Chalcopyrite 2500 0.66 130 130

In borehole no. CBH-02, the anomalous values of As, Bi, Cu and Au are shown in Table-V:

Sample No.

Fro

m To

S.

Le

ngt

h

BH


As Bi Cu Au

025/CS/CBH02/

2016-17/JBP

63.6

5 63.9 25

CBH-

02

Phyllite+QVG+Scorod

ite+Arsenopyrite+Chal

copyrite 1650 0.32 450

<25

026/CS/CBH02/

2016-17/JBP 63.9 64.4 50

CBH-

02

Phyllite+QVG+Scorod


copyrite 2670 2.50 0.18% 180

027/CS/CBH02/

2016-17/JBP 64.4

64.6

5 25

CBH-

02

Phyllite+QVG+Scorod


copyrite 3200 0.76 125 <25

028/CS/CBH02/

2016-17/JBP

64.6

5 64.9 25

CBH-

02

Phyllite+QVG+Scorod


copyrite 2350 0.94 120 110

40

029/CS/CBH02/

2016-17/JBP 64.9

65.1

5 25

CBH-

02

Phyllite+QVG+Scorod


copyrite 2510 0.29 285 50

030/CS/CBH02/

2016-17/JBP

66.0

5

66.3

5 30

CBH-

02

Phyllite+QVG+Scorod

ite+Arsenopyrite 809 14.93 0.13% 330

034/CS/CBH02/

2016-17/JBP 68.6 69.1 50

CBH-

02

QVM+Chalcopyrite+

Arsenopyrite 1991 0.75 235 <25

035/CS/CBH02/

2016-17/JBP 69.9

70.1

5 25

CBH-

02

Arenite+Chalcopyrite+

Arsenopyrite 509 0.34 570 <25

036/CS/CBH02/

2016-17/JBP

70.9

5

71.4

5 50

CBH-

02

QVM+Chalcopyrite+

Arsenopyrite+Pyrite 1.10% 5.53 555 <25

038/CS/CBH02/

2016-17/JBP

105.

85

106.

1 25

CBH-

02

Arenite+Arsenopyrite

+Chalcopyrite 1900 0.42 650 25

039/CS/CBH02/

2016-17/JBP

108.

2

108.

45 25

CBH-

02


+Chalcopyrite 3.30% 6.04 940 <25

040/CS/CBH02/

2016-17/JBP

113.

15

113.

45 30

CBH-

02

Arenite+QVG+Scorod

ite+Chalcopyrite+Arse

nopyrite 1590 0.36 360 380

041/CS/CBH02/

2016-17/JBP

113.

45

113.

75 30

CBH-

02

Arenite+QVG+Scorod


nopyrite 1730 0.76 185 <25

042/CS/CBH02/

2016-17/JBP

113.

95

114.

2 25

CBH-

02

Arenite+QVG+Scorod


nopyrite 1170 21.85 1.32%

1.91

ppm

043/CS/CBH02/

2016-17/JBP

114.

5

114.

75 25

CBH-

02

Arenite+QVG+Scorod


nopyrite 2350 1.87 0.18% 55

044/CS/CBH02/

2016-17/JBP

131.

2

131.

5 25

CBH-

02

Arenite+Scorodite+Ar

senopyrite+QVM+Cha

lcopyrite+QVM 2345 2.08 370 <25

045/CS/CBH02/

2016-17/JBP

147.

8

148.

3 50

CBH-

02

Arenaceous

Phyllite+Arsenopyrite

+QVM+Scorodite 1980 4.48 320

1.11

ppm

046/CS/CBH02/

2016-17/JBP

148.

3

148.

55 25

CBH-

02

Arenaceous

Phyllite+QVM+Arsen

opyrite+Scorodite 390 1.64 165 125

047/CS/CBH02/

2016-17/JBP

148.

55

148.

8 30

CBH-

02

Arenaceous

Phyllite+QVM+Arsen


048/CS/CBH02/

2016-17/JBP

148.

85

149.

05 25

CBH-

02

Arenaceous

Phyllite+QVM+Arsen


41

In borehole no. CBH-03 the anomalous values of As, Bi, Cu and Au are shown in Table-VI:

Sample No.

Fro

m To

S.

Le

ngt

h

BH


As Bi Cu Au

050/CS/CBH03/

2016-17/JBP

42.2

5

42.5

5 30

CBH-

03 Phyllite+QVM 2650 0.52 265 25

051/CS/CBH03/

2016-17/JBP

48.9

5

49.2

5 30

CBH-

03 Phyllite+QVM 2225 0.15 35 <25

052/CS/CBH03/

2016-17/JBP

49.2

5

49.5

5 30

CBH-

03 Phyllite+QVM 1% 0.57 10 <25

054/CS/CBH03/

2016-17/JBP

53.6

5

54.1

5 50

CBH-

03

Phyllite+QVG+Scorod

ite 10% 56.98 25 <25

055/CS/CBH03/

2016-17/JBP

57.7

5

58.0

5 30

CBH-

03

Phyllite+QVG+Scorod

ite 780 0.31 10

1.22 ppm

056/CS/CBH03/

2016-17/JBP 65.5 65.8 30

CBH-

03 QVG+Scorodite 1400 0.55 10 40

057/CS/CBH03/

2016-17/JBP 78.3 78.6 30

CBH-

03

Arenite+QVG+Scorod

ite+arsenopyrite 1060 0.67 205 <25

058/CS/CBH03/

2016-17/JBP 79.6

79.8

5 25

CBH-

03

Arenite+QVG+Scorod

ite+arsenopyrite 1% 25.05 760 30

059/CS/CBH03/

2016-17/JBP 82.3

82.5

5 25

CBH-

03

Arenite+Pyrite+Arsen

opyrite 1.20% 2.59 690

1.02 ppm

061/CS/CBH03/

2016-17/JBP

100.

55

100.

85 30

CBH-

03

Phyllite+QVG+Scorod

ite+Arsenopyrite+Pyrit

e 1505 1.74 175 310

In borehole no. CBH-04 the anomalous values of As, Bi, Cu and Au are shown in Table-VII:

Sample No.

Fro

m To

S.

Le

ngt

h

BH


As Bi Cu Au

062/CS/CBH04/

2016-17/JBP 36.5

36.7

5 25

CBH-

04 QVG+Scorodite 2360 5.37 0.17%

1.41

ppm

In borehole no. CBH-05 the anomalous values of As, Bi, Cu and Au are shown in Table-VIII:

Sample No.

Fro

m To

S.

Le

ngt

h

BH


As Bi Cu Au

070/CS/CBH05/

2016-17/JBP 28

28.2

5 25

CBH-

05 Phyllite+QVG 2230 0.31 210 <25

071/CS/CBH05/

2016-17/JBP 31

31.2

5 25

CBH-

05 Phyllite+QVG 2895 0.32 155 <25

42

072/CS/CBH05/

2016-17/JBP 32.1 32.6 50

CBH-

05 QVG 1980 <0.1 40 <25

076/CS/CBH05/

2016-17/JBP 92.6 93.1 50

CBH-

05

Arenaceous

Phyllite+Arsenopyrite 2117 0.34 340 <25

077/CS/CBH05/

2016-17/JBP 93.7 94.2 50

CBH-

05

QVG+Arsenopyrite+A

renaceous Phyllite 121 0.49 125 <25

078/CS/CBH05/

2016-17/JBP

112.

3

112.

8 50

CBH-

05

QVG+Arenaceous

phyllite 2700 0.76 170 <25

079/CS/CBH05/

2016-17/JBP

112.

8

113.

2 50

CBH-

05

QVG+Arenaceous

phyllite 3880 0.74 115 <25

080/CS/CBH05/

2016-17/JBP 127

127.

5 50

CBH-

05

QVG+Arenaceous

phyllite 100 <0.1 10 30

081/CS/CBH05/

2016-17/JBP

127.

7

127.

95 25

CBH-

05

QVG+Arenaceous

phyllite 2000 4.21 10 <25

Table-IX: Correlation matrix of analyzed elements of Core Samples.

Cu Pb Zn Ni Co Ag As Bi Mo Au

Cu 1.00

Pb 0.15 1.00

Zn 0.91 0.19 1.00

Ni 0.88 0.13 0.89 1.00

Co 0.05 -0.05 0.00 0.17 1.00

Ag 0.49 0.29 0.38 0.26 0.03 1.00

As -0.03 -0.07 -0.13 0.07 0.91 0.00 1.00

Bi 0.05 -0.09 -0.03 0.09 0.58 0.07 0.54 1.00

Mo -0.02 -0.09 0.05 0.02 0.02 0.02 -0.04 -0.02 1.00

Au 0.01 -0.09 -0.05 0.07 0.59 0.04 0.58 0.83 -0.03 1.00

Geochemical analytical results of 100 core samples shows positive correlation of Au with Co, As

and Bi. Ag does not show good correlation with any of the elements. Cu, Zn and Ni shows strong

positive correlation among them. Zn has negative correlation with As and Au. Co, Bi and As has

good correlation among them.

V.02.10: Details of interpreted Mineralized zones on the basis of geological investigation.

The mineralized zones have been observed during geological investigation. Trench no. CTR-02

shows scorodite band. Thus trench assists in delineating the surface configuration and grade of

mineralized zone. Both scorodite and quartz veins form important mineralised zone/marker

horizon. Scorodite is restricted to the south of BIF bands.

43

VI. INTEGRATION OF GEOLOGICAL, GEOCHEMICAL AND GEOPHYSICAL

EXPLORATION DATA AND INTERPRETATION THERE OFF:

I. Creation of Geophysical, Geochemical, Geological (Lithological, and structural and

outcrop maps on true scales.)

GEOCHEMICAL EXPLORATION: Geochemical exploration work has not been carried out

in the block area. Only the geochemical mapping has been carried out in 63L/11 during the FS:

2015-16. The Chakariya block falls in C-3 Quadrant of toposheet no. 63L/11. In NGCM

program, composite samples are prepared by mixing and homogenizing of four adjacent unit cell

samples. The stream sediments samples from the composite no. 024 and 025 have been prepared.

Analytical data of the composite sample nos 24 and 25 with other adjacent areas has been studied

for Packages A and H. Results of Gold has not been received so far (Bage et. al 2016), hence no

conclusion could be drawn from the NGCM data. Though Water sample was collected from the

C-3 (Chakariya Nala) Quadrant during FS 2015-16, Au and As has been reported <0.001 and

193 ppb respectively (Bage et. al 2016), which doesn‟t show any significant value. The results of

ICP-MS (Package) and XRF (Package A) are given in Annexure- XI

44

Chakariya Block.

Plate-II: Drainage map with sample location points of Toposheet No. 63L/11

45

VII. ABIOTIC PARAMETERS: Soil, Surface water (Pre-Monsoon and Post-Monsoon Ground

water sampling.)

Ground water sampling: A total of 05 water samples have been collected from the dug wells and

Handpump of Chakariya Block.

Soil Condition: Soil is brownish yellow in color and lacks humus. It is also dry and low in

nutrient content and requires moisture and fertilizers to support agriculture. Soil profile is

shallow and not well developed.

Field Photograph-VIII: Collection and in-situ measurement of water sample from dug well

at Chakariya block.

Analytical results and its interpretation: The water of Chakariya Block is more or less neutral in

nature with pH ranging from 6.70 to 7.44 with a mean value of 7.16. This implies that, the

general water quality of the region including dugwells is alkaline nature. Total dissolved solids

(TDS) of groundwater and surface water ranges from 205 to 247 mg/l. The TDS is well within

46

range of drinking as well as agricultural purposes. Concentrations of Na, K, Ca and Mg varies

from 23.7 to 44.6 mg/l (mean 33.76 mg/l), 0.4 to 1.8 mg/l (mean 0.76 mg/l), 14 to 22 m/l (mean

17.2 mg/l) and 4 to 18 mg/l (average 8.2 mg/l), respectively in groundwater/Dugwell and Surface

water. Concentrations of Cl, NO3 and HCO3 ranges from 0 to 84 (ave. 16.8 mg/l), 15.6 to 34.54

(ave. 6.90 mg/l) and 183 to 843 (average, 169 mg/l), respectively, observed in the water samples.

SO4 concentrations vary from 09 to 40 mg/l (ave. 8 mg/l). Field data sheet, Water analytical data,

is enclosed in Annexure – I (A), I (B) and I (D). The correlation matrix of Mn, Fe, Co, Zn and As

has been calculated. Mn shows very strongly correlation with Co and strongly correlation with

Fe and Zn. As shows negative correlation with Mn, Fe, Co and Zn. Fe shows very strong

correlation with Co and fairly strong correlation with Zn.

The descriptive statistics and correlation matrix of water samples is shown in Annexure-I (E), I

(F)

47

VIII: MINERAL DEPOSIT:

VIII.01: Surface indication of mineralization:

Mineralization in Chakariya Block is mainly concentrated in Quartz vein Grey and Scorodite

bands. Mineralization is also observed in Phyllite and BIF at places. Quartz vein Grey is the most

probable source of mineralization from which minerals have also disseminated to other country

rocks as well.

Scorodite is an altered mineral product resulting from the oxidation of arsenopyrite and other

arsenic bearing minerals and arsenic is usually closely associated with gold therefore scorodite

can be used as a pathfinder mineral for gold mineralization. Scorodite is manifested on the

surface in the form of discontinuous bands trending WNW-ESE and was observed at many

places in the field including NE of Borehole GCD-07, near Trench CT-9, North of Boreholes

GCD-01 and GCD-04.

Field Photograph-IX: Oxidized outcrop of Scorodite near Trench CT-9.

Longitude: 82°42´45´´ Latitude: 24°17´3.5´´

48

Field Photograph-X: Small Scorodite body in the west of Trench CTR4

Longitude: 82°43´30.7´´ Latitude: 24°17´10.16´´

VIII.02: Mode of occurrence

The mode of occurrence refers to the pattern of distribution of ore minerals in a host rock. The

occurrence of gold mineralization is well known in Mahakoshal Greenstone Belt. Hence on a

regional scale the stratigraphic control is discernible by the occurrence of gold mineralisation in

volcano-sedimentary rocks of Mahakoshal Group. Occurrence of Gold mineralization in this area

is restricted to Quartz vein, Greenish Phyllite and Scorodite bands and to a lesser extent in BIFs.

White quartz veins/Grey quartz veins/Mixed quartz veins are intruded into phyllite along S1

foliation planes. These quartz veins are containing specks and stringers of sphalerite, pyrite,

chalcopyrite, arsenopyrite and mineralization occur in the form of vug filling. The placement of

49

quartz veins along the foliation planes and its further fracturing and folding at places is

suggestive of structural control on the occurrence of mineralization.

Field Photograph-XI: Folding observed in quartz vein at Chakariya nala.


Gold mineralisation in block occurs in different modes which are as under-

1. Within arsenopyrite rich layers,

2. Within post F1 quartz veins,

3. Within syn to post F2 quartz veins, quartz -sulphide veins

50

Gold bearing quartz and quartz-sulphide veins related to syn to post F2 deformation is emplaced

with in F1 quartz veins

VIII.03: Nature of Mineralization

Arsenopyrite (including its altered form scorodite), pyrite, chalcopyrite and galena are the

principal sulphide minerals observed in the mineralized zones in the surface and in drill cores.

The characteristics of the ore minerals are as follows:

Arsenopyrite: Arsenopyrite is most dominant sulphide phase occurring with other sulphides. It

occurs as euhedral to subhedral crystals with characteristic rhombic to angular shapes. At places

it occurs as fine grained well developed crystals aggregate. Arsenopyrite grains size is ranging

from few mm to approximately up to 1 cm. The colour of arsenopyrite is dull grey and gives

black to steel grey colour of streak. On the surface it has altered to limonite and Scorodite

whereas in core samples it shows perfect crystals surrounded by matrix of arsenopyrite and

pyrite with altered scorodite at the border. In few samples arsenopyrite grains are fractured and

this fracturing may be attributed to a later deformational event.

Chalcopyrite: It is a brass yellow coloured mineral having a dark grey streak with greenish

tinge. It occurs as inclusions in fine grained pyrite as well as isolated grains associated with

arsenopyrite and pyrite. It is present in the form of subhedral to anhedral grains in the quartz

veins and along phyllitic foliations.

Pyrite: Pyrite has also been observed in core samples. It generally occurs as euhedral fine grains.

Chakariya block exhibits the following setup for gold mineralisation:

A. Epigenetic type: Vein type deposits in phyllites and scorodite bands.

B. Syngenetic Stratabound type: Bedded type associated with Banded Iron Formations

Vein Type Mineralisation:

Fold axes largely control the emplacement of auriferous quartz veins with or without sulphide

mineralisation. The vein type gold mineralisation appears to have been formed during the

deformation and low-grade metamorphism. Quartz vein are co-axial with the phyllite though at

places it cuts across the phyllite. Among various quartz veins sampled, one sample from Chakariya

51

block has reported Au value of 8.8 ppm. This confirms that Chakariya prospect has epigenetic

auriferous quartz veins.

Bedded Type Mineralisation:

The gold mineralisation is present within the thin stretched cherty bands of BIFs and the

dominant sulphides are arsenopyrite and pyrite.

VIII.04: Details of Mineralized zones: Strike length and Width of another identified on the

basis of geology, Geophysical and Geochemical exploration

Scorodite occurs near the contact of phyllites and BIF as linear, detached bands parallel to the

regional trend of rocks. Perhaps this is a zone between competent layer (BIF) and an incompetent

layer (phyllites) and such zones are good loci for gold mineralisation. It has more or less uniform

thickness of about 2 metres and has a strike length of 800 metres. Its trend is WNW-ESE.

VIII.05: Alterations zones and its relevance with mineralization.

Mahakoshal Group of rocks has undergone wall rock alteration at certain places and such places

are important for gold mineralisation.

52

Field Photograph-XII: Sulphidation of Scorodite north of Borehole GCD-01,


Sulphidation: Ferromagnesian silicates react with sulphur and arsenic to form sulphides.

Minerals such as arsenopyrite and pyrite of the Chakariya block may have formed due to this

process. The studies of wall rock alteration are important as they provide exploration targets and

contain high values of metals as compared to the host rock.

Chloritisation: It is always associated with sericite and/or biotite. The Fe-Mg silicates of the

phyllites break down to develop chlorite.

VIII.06: Genesis of Mineralization/Genetic model of Mineralization

The deposit type of Chakariya Block is turbidite hosted type (Devrajan et.al 2006). Key

manifestation of deposits is by concentration of gold-bearing veins by secondary features which

has led to the deposition of sulphide mineralization in quartz vein grey. In Chakariya block it is

being carried along with the greenish phyllite along the foliation plane (Jha et al). The gold

mineralization is epigenetic in character with presence of gold with the arsenopyrite and

scorodite (based on BRS results). On the basis of core study it has been observed that

emplacement of silica rich melt along foliation plane S1 and formation of quartz vein with

53

subsequent precipitation of sulphide minerals in the form of vugs filling, pecks and stringers.

Deformation of quartz vein initiated the second stage of mineralisation. Along the deformation

planes the hydrothermal fluids circulated and subsequent precipitation of sulphide mineralization

along with silicate phases viz chlorite. Later stage of mineralization is manifested by

precipitation of sulphide minerals along the fracture planes which are cross cutting the foliation

plane. Gold bearing quartz veins indicates epigenetic nature of mineralization.

54

IX.: EXPLORATION BY DRILLING

IX.01: Stages of exploration as per mineral content rule:

The UNFC consists of a three dimensional system with the following three axes: Geological

Assessment, Feasibility Assessment and Economic viability. The process of geological

assessment is carried out stage wise. The typical successive stages of geological investigation i.e.

reconnaissance, prospecting, general exploration and detailed exploration, generate resource data

with a clearly defined degrees of geological assurance. These four stages are therefore used as

geological assessment categories in the classification. The four stages of geological assessment

are represented by 4 codes i.e. 1 (detailed exploration), 2 (general exploration), 3 (prospecting)

and 4 (reconnaissance). As per UNFC classification, this exploration can be classified as G-2

stage as drilling is being carried out for augmentation of reserve in between previous boreholes

and 2nd

level planning for the earlier drilled boreholes.

IX.02: Methodology of drilling with the details of type of drilling i.e. core drilling auger,

reverse circulation etc.

In Chakariya Block, District-Singrauli (MP) diamond core drilling was used for drilling. The

drill bit used here is composed of group of small, industrial grade diamonds set into a metallic,

soft matrix. As the ground is drilled, the matrix will wear away and expose more diamonds. This

is then attached to a drill rod, which is around 10 feet in length, and then more sections of pipe

can be attached to the top of this so a greater depth can be drilled. Inside the drill rod, a core tube

is attached to a cable via a latching mechanism. The core tube is lifted to the surface using the

cable, so the solid core can be removed. There are two primary types of diamond drilling-rotary

drilling and wireline drilling. Drilling work for Chakariya block was outsourced to Gemko-Kati.

Core drilling (NX size) was carried out by KDR-750 machine using wireline drilling method.

IX.03: Borehole planning: Spacing of Boreholes and level of intersection of Mineralized

zones as per mineral content rule.

This project is continuation of FS 1999-2001, in which a total of 09 boreholes with an interval of

100m has been drilled. Nine boreholes with total of 1291.30 metres were drilled. The inclined

55

boreholes with 50° angle were planned to intersect the mineralised zones at about 60m vertical

depths.

During FS 2016-17, a total 07nos of borehole has been planned and executed in Chakariya

Block. As per the suggestion from The Dy. Director General, Regional Mission Head (M-II),

Geological survey of India, Central Region, Nagpur vide letter no. 202/RMH/CR/2016 dated 19-

08-2017, Two boreholes of 50m vertical interval has been planned in between GCD04 & GCD01

and GCD05 & GCD03 to confirm the trench values and also to check the strike continuity of

mineralized zone. The second boreholes of 100m vertical intersection has been planned for

GCD-01, 05, 06, 07 and 08 to examine the depth continuity of mineralized zone intersected in

first level (50m). The cross-section of boreholes and location on detailed geological map is

shown in Figure-IX, Figure-X, Figure- XI, Figure-XII, Figure-XIII, Figure-XIV Figure-XV and

Figure-XVI. Borehole points along with RL at collar and fixing of alignment pegs for the rigs

was carried out by Total Station.

56

Figure-IX: Location of old borehole and drilled borehole during FS 1999-2001 and FS 2016-17,respectively Chakariya Block,

Singrauli

82°44´4.3´´

24°17´5.6´´

82°44´4.2´´

24°16´48.6´´

82°43´50.42´´

24°17´5.7´´

82°43´14.8´´

24°17´20.2´´

82°43´14.8´´

24°17´20.2´´

57

Figure-X: Cross-Section of Borehole No. CBH 01 (1st Level Borehole), Gold Investigation in

Chakariya Block, Sidhi district, MP (in Parts of T. S No. 63L/11)

58

Figure-XI: Cross-Section of Borehole No. CBH 04 (1st Level Borehole), Gold Investigation in

Chakariya Block, Sidhi district, MP (in Parts of T. S No. 63L/11)

59

Figure-XII: Cross-Section of Borehole No. CBH 02 (2nd

Level Borehole) and surface location

point of GCD 01 (earlier drilled borehole), Gold Investigation in Chakariya Block, Sidhi district,

MP (in Parts of T. S No. 63L/11)

60

Figure – XIII: Cross-Section of Borehole No. CBH 03 (2nd

Level Borehole) and surface

location point of GCD 05 (earlier drilled borehole), Gold Investigation in Chakariya Block, Sidhi


61

Figure-XIV: Cross-Section of Borehole No. CBH 05 (2nd

Level Borehole) and surface location

point of GCD 08 (earlier drilled borehole), Gold Investigation in Chakariya Block, Sidhi district,

MP (in Parts of T. S No. 63L/11)

62

Figure-XV: Cross-Section of Borehole No. CBH 06 (2nd


location point of GCD 06 (earlier drilled borehole), Gold Investigation in Chakariya Block,


63

Figure-XVI: Cross-Section of Borehole No. CBH 07 (2nd


location point of GCD 07 (earlier drilled borehole), Gold Investigation in Chakariya Block,


64

IX.04: Borehole logging.

Corelogging has been carried out to know the sub-surface geology. Core obtained from

respective boreholes was kept in boxes which have partition according to box. The core was

kept with arrow marking showing top and bottom of core. Steel pegs are kept between each

run (3 mts of each run) and depth of borehole is written on them.

There are two type of keeping the ore.

Book Pattern.

Figure-XVII: Book and Snake pattern of keeping of core.

In Geological Survey of India book pattern of keeping the core is in practice.

Examination of core:

Guidelines have been followed during the examination of core.

(a) Tools of examination: streak plate, pocket lense, laser lense

(b) Core was wetted to get clean picture

(c) Attitude of structural features like bedding plane, foliation feature have been recorded

faithfully on intersection of these planner structure with core axis.

(d) Variation in lithology has been marked and recorded.

(e) In few boreholes the recovery is not 100% therefore it has been adjusted as well.

(f) Sludge has been collected in sludge box.

(g) Mineralization has been studied.

(h) Sample zone has been identified.

(i) Size of core and bit has been mentioned

(j) Core- boxes of sulphide mineralization were not kept open because of oxidation.

(k) Nature of core has been recorded and RQD was also determined.

(l) Measurement of Core angle – Between core-axis and Bedding/Foliation plane.

Core angle= The angle between the core axis and foliation plane of the unit.

65

Borehole logging was carried out and results are described as summarized litholog in tabular

form. CBH-01, CBH-4 are 1st level borehole while CBH-02, CBH-03, CBH-05, CBH-06 and

CBH-07 are second level boreholes. The detailed corelogging sheet is shown in Table-X to

XVI.

Table-X : Details of Corelogging of Borehole No. CBH-01

(A) Location: Latitude: N24°17´10.3´´, Longitude: E82°43´26.3´´

(B) R.L at Collar: 387.347m.

(C) Date of commencement: 03/03/2017.

(D) Date of completion: 13/03/2017.

(E) Total Depth: 90m.

Depth along Bore

hole in (m)

Thickness

Lithology Rock Forming Minerals

From To

00.00 2.00 2 Soil Profile

2.00 5.51 3.51 Sludge

5.51 5.76 0.25 Phyllite

5.76 8.00 2.24 Greenish Phyllite

8.00 8.16 0.16 Phyllite

8.16 8.22 0.06 Rubble zone

8.22 8.54 0.32 Phyllite

8.54 8.71 0.17 Sludge of Phyllite+

Rubble zone

8.71 11.00 2.29 Ferrugenous Phyllite

11.00 12.0 1 Phyllite

12.00 12.30 0.3 Natural Rubble zone


15.10 18.27

3.17

Arenaceous Phyllite

Mineralization in micro

fracture indicating alteration of

phyllite via hydrothermal

fluid, presence of mica-

Muscovite

18.27 18.57 0.3 Phyllite, Arenaceous

phyllite

66

18.57 19.83 1.26

Qtz

Vein+Phyllite+Scoro

dite

MZ-Scorodite +

Cryptocrystalline Qtz+ sericite

19.83 22.21 2.38 Phyllite


22.86 25.20 2.34 Phyllite+Qtz vein

Greyish

MZ (QVG), Qtz vein at 24.60-

24.62

25.20 25.52 0.32

Qtz vein +Scorodite

.Acc-Arenaceous

phyllite

Qtz vein +Scorodite

25.52 25.90 0.38 Arenaceous phyllite

25.90 26.00 0.1 Phyllite

26.00 29.00 3 Arenaceous phyllite

29.00 30.90 1.9 Phyllite

30.90 31.08 0.18 Phyllite+Grey Qtz

vein

31.08 31.36 0.28 Rubble zone phyllite


+ Qtz vein Mixed

32.00 33.31 1.31 Phyllite 32.88-32.98 Qtz vein intruded

33.31 33.56 0.25 Rubble zone


MZ, Scorodite +Qtz vein

Grey, Chalcopyrite

+Arsenopyrite

35.00 36.42 1.42 Arenite Mz ( Arsenopyrite+ Qtz vein)

36.42 36.90 0.48 Phyllite+Qtz vein Qtz vein+ Apy+ Py of 7cm,

36.65-36.72-Grey Qtz vein

36.90 38.00 1.1 Arenite MZ( Scorodite + Chalcopyrite

+Apy, Pyrrhotite)



+ phyllite MZ( Apy +QVG)

41.00 42.45 1.45 phyllite

42.45 44.00 1.55 Arenite QVG

44.00 47.00 3 Arenite+Arenaceous

phyllite Qtz vein intrusion

47.00 56.00 9 Arenaceous phyllite Qtz vein intrusion. 50.79-

50.82- MZ(Chalcopyrite +

67

Pyrite +Apy)

Mz(Chalcopyrite +Apy) at

53.07 to 53.09

56.00 56.61 0.61 Arenite

56.61 57.63 1.02 phyllite+Arenite MZ(Qtz vein+Scorodite

Apy+Cpy)


59.00 60.23 1.23 Phyllite

60.23 62.00 1.77

Arenaceous

phyllite+Greenish

phyllite

Qtz veinlets intrusion

62.00 63.59 1.59 Arenite

63.59 63.61 0.02 QVG QVG+Cpy

63.61 66.52 2.91 Arenite

64.16(Qtz veination+Cpy) and

64.77 ( QGV), Qtz veination at

66.01


68.00 77.14 9.14 Arenite

77.14 77.83 0.69 MZ MZ( Sco+Apy+QVG+Cpy)

77.83 78.00 0.17 Arenite


78.70 79.23 0.53 Arenite


80.00 80.02 0.02 QVG MZ( Sco+Apy+QVG+Cpy)

80.02 84.76 4.74

Arenite

80.46-80.95- MZ( Sco +Apy +

Cpy)

81.90-82.00- MZ( Sco +Apy

+QVG + Cpy)

84.76 86.00 1.24 Phyllite

84.76-84.96 MZ(QVG +Apy)

85.30-85.47 MZ(QVG +Apy)

86.00 87.74 1.74 Phyllite+QVG

87.74 89.00 1.26 QVG

89.00 90.00 1 Phyllite+QVG MZ ( Apy + Cpy)

68

Table-XI: Details of corelogging of Borehole No. CBH-02

(A) Location: Latitude: N24°17´7.9´´,Longitude: E82°43´27.4´´





Depth along Bore hole

in (m)

Thickness Summarized

Lithology

Details of ore horizon

From To

00.00 5.00 5 Soil Profile

5.00 21.44 16.44 Phyllite+Rubble

zone

21.44 23.00 1.56 Phyllite

23.00 26.00 3 Phyllite+Rubble

zone

26.00 32.00 6 Phyllite

32.00 38.00 6 Phyllite+Minor

QVG

38.00 44.00 6 Phyllite+Rubble

zone

44.00 44.46 0.46 Phyllite

44.46 44.62 0.16 Qtz vein+Scorodite MZ

(Arsenopyrite+Chalcopyrite)

44.62 46.72 2.1 Phyllite

46.72 46.80 0.08 Qtz Vein+Scorodite MZ

46.80 47.25 0.45 Phyllite

47.24 47.60 0.36 Phyllite+QVG MZ (Scorodite +Chalcopyrite

+Apy)

47.60 48.59 0.99 Phyllite+Arenaceous

Phyllite

48.59 48.65 0.06 QVG+Phyllite MZ (Scorodite in patches with

Qtz vein)

48.65 49.12 0.47 Phyllite

49.12 49.35 0.23 Arenaceous Phyllite

49.35 50.00 0.65 Phyllite MZ at 49.60 QVG of .5 cm,

49.74 of 2cm QVG

69

50.00 50.13 0.13 Phyllite+QVG MZ ( Scorodite+Arsenopyrite

small grains)


Phyllite

55.17 55.48 0.31 Natural Rubble zone Qtz vein

55.48 56.00 0.52 Phyllite


Phyllite

56.38 56.41 0.03 QVG



Phyllite

59.00 61.00 2 Phyllite+Arenaceous

Phyllite

MZ

(Chalcopyrite+Arsenopyrite)

61.00 61.12 0.12 QVG MZ (Scorodite)

61.12 62.00

0.88

Arenaceous Phyllite 61.80 - along the foliation of

phyllite of .50cm thick, QVG,

Arsenopyrite + Chalcopyrite

62.00 63.55 1.55 Phyllite

63.55 65.00 1.45 Phyllite Scorodite

+Chalcopyrite+Arsenopyrite)

65.00 65.08 0.08 Phyllite Arsenopyrite + Qtz +Scorodite


65.84 66.30 0.46 Arenite Arsenopyrite + QVM +

Chalcopyrite, +Scorodite

66.30 66.60 0.3 Arenite

66.60 67.10 0.5 Arenite, QVG +Scorodite+Chalcopyrite

67.10 68.57 1.47 Arenite

68.57 69.30 0.73 QVM Arsenopyrite (Crystal at face of

core), specks of Chalcopyrite

69.30 70.67

1.37

Arenite 69.95-70.00 Arsenopyrite +

Chalcopyrite ( along the

foliation plane)

71.00 71.27 0.27 QVM Mineralized zone

Chalcopyrite+Pyrite

71.27 77.00

5.73

Arenite 72.10-Arsenopyrite, 72.63-

QVM-Intruded along the

foliation plane, 73.16-QVM-

70

Intruded along the foliation

plane along with Scorodite


Phyllite

80.00 83.00 3 Arenaceous Phyllite

83.00 86.00

3

Phyllite +

Arenaceous Phyllite

Mineralization along the

foliation plane has been

observed

86.00 89.00 3 Arenaceous

Phyllite+Arenite

89.00 90.14 1.14 Phyllite

90.14 90.22 0.08 QVG+ Scorodite

90.22 92.00 1.78 Phyllite+

Arenaceous Phyllite

92.00 95.00

3

Phyllite +

Arenaceous Phyllite

A 2 cm thick QVG present at

93.25 and 94.66

95.00 98.00

3

Phyllite A 2 cm thick QVG present at

96.84 is observed with pyrite

+ Chalcopyrite specks profused

in it

98.00 101.00

3

Arenite +

Arenaceous phyllite

+ Phyllite


phyllite

A 1/2cm thick MZ at 102.68

104.00 105.90 1.9 Arenite

105.90 106.00 0.1 Arenite Arsenopyrite + Chalcopyrite

106.00 108.27 2.27 Arenite

108.27 108.31 0.04 Arenite MZ (

Arsenopyrite+Chalcopyrite)

108.31 112.72 4.41 Arenite

112.70 112.82 0.12 QVM


113.21 114.95 1.74 Arenite QVG + Scorodite

+Arsenopyrite + Chalcopyrite)


116.00 118.00 2 Phyllite

71

118.00 118.06 0.06 QVG Chalcopyrite)-Mz

118.00 118.34 0.34 Phyllite

118.34 118.41 0.07 QVG


118.81 118.88 0.07 QVG

118.88 131.00 12.12 Arenaceous Phyllite QVG at 127.00= 2cm, 127.64

= 04 cm

131.00 131.18 0.18 Arenite

131.18 131.62 0.44 QVM) Scorodite +Arsenopyrite


140.00 141.12 1.12 Arenite


144.18 144.40 0.22 QVM


144.60 144.66 0.06 QVM


147.89 148.29 0.4 Arsenopyrite

+QVM+ Scorodite


Table-XII: Details of corelogging of borehole No. CBH-03






(F) Azimuth-N23°E, Angle- 50°

72

Depth along BH in

Meters


Lithology

Details of ore

horizon

From To

00.00 2.11 2.11 Soil Profile

2.11 5.84 3.73 Rubble zone +Phyllite

5.84 26.00 20.16 Phyllite with Cutting

26.00 27.00

1

Phyllite+QVG+Scorodi

te in patches

27.00 28.90

1.9

Phyllite, at 28.56 a 2cm

thick QVG

28.90 41.38 12.48 Phyllite

41.38 43.00 1.62 Phyllite+QVM


44.52 44.78 0.26 QVG +Phyllite Scorodite

44.78 46.14 1.36 Phyllite

46.14 46.40 0.26 QVG Scorodite

46.40 46.90 0.5 Phyllite

46.90 52.46

5.56

Phyllite+Arenaceous

Phyllite

52.46 52.60 0.14 QVW

52.60 53.00 0.4 Arenite

53.00 56.00

3

Phyllite+QVG+Scorodi

te

56.00 56.24 0.24 Phyllite

56.24 56.54 0.3 QVG+Phyllite

56.54 57.75 1.21 Phyllite

57.75 58.89

1.14

QVG+Scorodite+Phylli

te

73

59.00 59.61 0.61 Phyllite

59.61 59.84

0.23

QVG+Scorodite+Phylli

te

59.84 65.65 5.81 Phyllite

65.65 65.90 0.25 QVG+Scorodite

65.90 67.88 1.98 Phyllite

67.88 78.25

10.37

Phyllite+Arenaceous

phyllite

78.25 79.97

1.72

Arenite QVG +

Scorodite +

Arsenopyrite

79.97 83.00

3.03

Arenite+Arenaceous

Phyllite


83.22 83.66 0.44 Arenite

83.66 86.00

2.34

Phyllite+Arenaceous

Phyllite

86.00 95.00

9

Arenite and Arenaceous

Phyllite

95.00 95.42 0.42 Arenite

95.42 96.05

0.63

Arenaceous

phyllite(Mz)

96.05 96.75 0.7 Arenite


98.00 98.75 0.75 Mz ( Phyllite)

98.75 101.00

2.25

QVG, Phyllite +

Scorodite

Arsenopyrite +

Chalcopyrite +

Pyrite)

101.00 107.00

6

Phyllite + Arenaceous

Phyllite

74

107.00 107.50 0.5 Phyllite


107.85 108.85

1

Scorodite + QVG +

Phyllite

Arsenopyrite

108.85 110.00 1.15 Arenite


110.90 111.90 1 QVG (MZ)


116.00 122.00

6

Arenaceous Phyllite

and Greenish Phyllite

At 121.30

Microfolding

of foliation and

Quartz vein

intruded along

foliation

122.00 125.00

3

Greenish Phyllite Profused

quartz

veination

along and

across which is

the probable

source of

mineralization

along phyllitic

foliation

125.00 137.00 12 Phyllite

137.00 140.00

3

Arenaceous

Phyllite+Arenite


141.00 141.56 0.56 Qtz vein + Phyllite


Table-XIII: Details of corelogging of borehole no. CBH-04





75



Depth along BH in

Meters

Thickness Summarized Lithology Details of ore

horizon

From To

0.00 2.95

2.95 Soil Profile

2.95 3.34

0.39 rubble zone

3.34 5.00

1.66 Sludge

5.00 9.96

4.96 rubble zone

9.96 11.00

1.04 Greenish Phyllite

11.00 12.18

1.18 phyllite

12.18 12.71

0.53 rubble zone

12.71 13.16

0.45 phyllite

13.16 13.36

0.2 rubble zone

13.36 14.48

1.12 phyllite

14.48 15.00

0.52 rubble zone

15.00 15.36

0.36 phyllite

15.36 15.64

0.28 rubble zone

15.64 17.36

1.72 phyllite

17.36 17.76

0.4 rubble zone

17.76 17.89

0.13 phyllite

17.89 18.59

0.7 rubble zone

18.59 21.94

3.35 phyllite

21.94 26.00

4.06 rubble zone+Sludge

26.00 26.66

0.66 phyllite

26.66 26.99

0.33 Rubble zone

26.99 27.80

0.81 phyllite

27.80 27.97

0.17 Rubble zone

27.97 29.67

1.7 phyllite

76

29.67 29.69

0.02

QVG QVG

following the

general trend

of phyllite

29.69 29.97

0.28 phyllite

29.97 30.02

0.05 BIF

30.02

33.07 3.05

phyllite

A 3mm thick

Qtz vein is at

30.25

33.07

33.11 0.04

Oxidized zone

Highly

oxidized zone

with almost

complete

obliteration of

original rock

33.11 36.55

3.44 phyllite

36.55

36.73 0.18

QVG+Scorodite

Mineralization

is present

manly in the

form of

arsenopyrite

36.73 39.25

2.52 phyllite

39.25 39.27

0.02 QVG

39.27 40.56

1.29 phyllite

40.56 40.60

0.04 QVG

40.60 40.83

0.23 phyllite

40.83 40.90

0.07 QVG+Scorodite

40.90 41.07

0.17 QVG+Phyllite

41.07 42.59

1.52 phyllite

42.59 42.67

0.08 QVG+Scorodite

42.67 43.91

1.24 phyllite

43.91 43.93

0.02 QVG

43.93 47.00

3.07 phyllite

47.00 50.00

3

Arenaceous phyllite +Phyllite

(Minor Qtz vein parallel and

perpendicular to foliation

50.00 50.47

0.47 Arenaceous phyllite +Phyllite

77

50.47 53.00

2.53 QVG+ Phyllite+Scorodite

53.00

57.36 4.36 Arenaceous phyllite

+Phyllite+QVG

QVG is both

cross cutting

and parallel to

phyllitic

foliation,

Scorodite is

present in

small patches

within QVG

57.36 57.75

0.39 QVG+QVM

57.75 59.00

1.25 Phyllite+Minor Qtz vein

59.00 63.80

4.8 Arenaceous phyllite

63.80 65.00

1.2 Arenite

65.00 68.12

3.12 Phyllite

68.12 68.55

0.43 QVG+Scorodite

68.55 74.00

5.45 Phyllite+Arenaceous Phyllite

74.00 75.52

1.52 Phyllite

75.52 75.60

0.08 QVG

75.60 79.00

3.4 Phyllite

79.00 79.03

0.03 QVG

79.03 80.00

0.97 Phyllite

Table-XIV: Details of corelogging of borehole no. CBH-05







78

Depth along BH in

Meters

Thickness Summarized Lithology Details of ore

horizon

From To

00.00 00.50 0.5

Soil

00.50 2.26 1.76 Rubble + Soil Profile

2.26 2.96 0.7

Phyllite

2.96 5.00 2.04

Rubble zone

5.00 5.92 0.92

Soil Profile

5.92 7.30 1.38

Rubble zone

7.30 8.00 0.7

Soil Profile

8.00 8.65 0.65

Phyllite

8.65 9.28 0.63

Soil Profile

9.28 20.00 10.72 Phyllite+Cutting+ soil

profile

20.00 21.20 1.2

Phyllite

21.20 21.24 0.04

QVG ( MZ)

21.24 21.58 0.34

Phyllite

21.58 21.61 0.03

QVG ( MZ)

21.61 23.25 1.64

Phyllite

23.25 23.35 0.1

QVG+Phyllite Cutting

23.35 23.83 0.48

Greenish Phyllite

23.83 23.87 0.04

QVG

23.87 24.29 0.42

Phyllite

24.26 24.70 0.44

QVG+Phyllite Cutting

24.70 26.00 1.3

Phyllite

26.00 29.00 3

Phyllite + QVG ( MZ)

29.00 31.30 2.3

Phyllite

79

31.30 32.50 1.2

QVG ( MZ)

32.50 32.96 0.46

Phyllite

32.96 34.18 1.22

QVG

34.18 38.00 3.82

Phyllite

38.00 44.00 6 Greenish Phyllite +Rubble

zone

44.00 46.39 2.39

Arenaceous Phyllite

46.36

49.79

3.43 QVG ( MZ)+Scorodite

MZ at 47.78-

47.84 and 48.6-

48.34-QVG

Intrusion in

arenaceous

Phyllite

49.79 65.00 15.21

Arenaceous Phyllite

65.00 68.00 3

Phyllite

68.00 86.34 18.34

Arenaceous Phyllite

86.34 86.47 0.13

MZ(QVG)

86.47 86.56 0.09

Arenaceous Phyllite

86.56 86.96 0.4

QVG

86.96 89.92 2.96

Arenaceous Phyllite

89.92 90.09 0.17 QVG (MZ)


90.42 91.77 1.35 QVG (MZ)+Arenaceous

Phyllite


92.82 93.20

0.38

MZ Arenaceous Phyllite) (QVG+Scorodite

+

Chalcopyrite)


94.01 94.16 0.15 MZ (QVG + Arenaceous

Phyllite)

Scorodite+Arseno

pyrite


80

94.89 101.00 6.11 Arenaceous Phyllite+

Greenish Phyllite

101.00 101.04 0.04

Arenaceous Phyllite

101.04 101.11 0.07

QVG ( MZ)

101.11 104.00 2.89

Arenaceous Phyllite

104.00 107.00 3 Arenaceous Phyllite+

Greenish Phyllite

107.00 110.00

3

Arenaceous Phyllite+

Greenish Phyllite

MZ at 108.67 and

107.72- well

developed

crystals of

Arsenopyrite


112.53 113.31 0.78 QVG+Arenaceous

Phyllite

113.31 117.24 3.93

Arenaceous Phyllite

117.24 117.41 0.17 Arenaceous

Phyllite+QVG

117.41 118.87 1.46

Arenaceous Phyllite

118.87 122.00 3.13 Arenaceous

Phyllite+Greenish Phyllite

122.00 126.59 4.59

Arenaceous Phyllite

126.59 126.73 0.14 QVG+Arenaceous

Phyllite

126.73 127.10 0.37

Arenaceous Phyllite

127.10 127.82 0.72

QVG+Scorodite

127.82 130.00 2.18

Arenaceous Phyllite

Table-XV: Details of corelogging of borehole no. CBH-06







81

Depth along BH in

Meters

Thickne

ss

Summarized Lithology Details of ore

horizon

From To

00.00 5.00 5

Soil Profile

5.00 11.00 6

Soil Profile +Rubble zone

11.00 14.00 3

Phyllite+Rubble zone

14.00 17.00 3

Rubble zone

17.00 22.80 5.8

Phyllite

22.60 22.80 0.2

QVG+Scorodite

22.80 23.30 0.5

Rubble zone+Phyllite

23.30 23.50 0.2

QVG ( weathered)

23.50 26.00 2.5

Rubble zone+Phyllite

26.00 27.24 1.24

Rubble zone

27.24 30.73 3.49

Phyllite

30.73 31.13 0.4

QVM Arsenopyrite

31.52 35.86 4.34

Arenaceous Phyllite

35.86 37.27 1.41

Arenaceous Phyllite + QVG

Arsenopyrite +

Scorodite

37.27 38.62 1.35

Arenaceous phyllite

38.62 38.68 0.06

QVG+Arenaceous Phyllite

38.68 41.00 2.32

Arenaceous Phyllite

41.00 47.00 6 Arenaceous Phyllite + Greenish

Phyllite

47.00 47.95 0.95

Arenaceous Phyllite

47.95 48.23 0.28

QVM

48.23 53.00 4.77

Arenaceous Phyllite

53.00 54.07 1.07 Arenaceous Phyllite +Greenish

Phyllite

54.07 54.21 0.14

QVM+Arenaceous Phyllite

Specks of

Arsenopyrite

82

54.21 54.48 0.27

Arenaceous Phyllite

54.48 55.63 1.15

QVM

Arsenopyrite

specks

55.63 56.00 0.37

Arenaceous Phyllite

56.00 62.00 6

Greenish Phyllite+Arenaceous Phyllite

62.00 65.00 3

QVG +Phyllite Scorodite

65.00 66.73 1.73

phyllite

66.73 67.41 0.68

QVG +Arenite Scorodite

67.41 67.95 0.54

Phyllite

68.00 71.00 3

Phyllite+Arenaceous Phyllite

71.00 71.80 0.8

Phyllite

71.80 71.95 0.15

QVG+Scorodite

71.95 73.80 1.85

Phyllite

74.00 77.00 3


77.00 80.00 3

Greenish Phyllite+Arenite

80.00 83.00

3

Arenite+Arenaceous Phyllite (MZ) Chalcopyrite is

dominant and

disseminated

throughout the

rocks

83.00 89.80 6.8

Arenite+Arenaceous Phyllite

89.80 90.00 0.2

MZ ( Phyllite+Qtz vein intrusion)

90.00 90.28 0.28

Phyllite

90.28 90.40 0.12

QVG Scorodite

90.40 95.00 4.6

Arenaceous Phyllite

95.00 104.00 9

Arenaceous Phyllite+ Phyllite

104.00 110.00 6

Arenaceous Phyllite+ Arenite

110.00 113.00 3

Arenaceous Phyllite

83

113.00 118.86 5.86

Arenaceous Phyllite+ Arenite

118.86 118.94 0.08

QVG Scorodite

118.94 119.00 0.06

Arenaceous Phyllite

119.00 120.44 1.44

Arenite

120.44 122.00 1.56

Phyllite

122.00 123.00 1


Table-XVI: Details of corelogging of borehole no. CBH-07







Depth along BH in

Meters


Lithology

Details of ore horizon

From To

00.00 2.00 2 Sludge

2.00 29.00

27

Sludge + Cuttings of

phyllite

29.00 35.00

6

Phyllite + Cutting (Both

QVG + Phyllite)

35.00 38.00 3 Phyllite

38.00 41.00

3

Phyllite + Cutting (Both

QVG + Phyllite)

44.00 53.00

9

Phyllite 46.51-46.70- (

QVG+Scorodite)

53.00 56.00

3

Phyllite+Arenaceous

Phyllite

53.43- Mineralization of

Arsenopyrite in patches along

foliation

56.00 59.00

3

Greenish +Greyish

Phyllite

59.00 60.00 1 Phyllite

60.00 62.00

2

Greenish

Phyllite+QVW

62.00 68.00

6

Phyllite 67.50-67.52-Arsenopyrite

along the foliation64.84-64.88-

QVM

68.00 68.50 0.5 QVM Minor specks of Arsenopyrite

84

68.50 68.87 0.37 Phyllite

68.87 69.50 0.63 Arenite

69.50 70.06 0.56 Phyllite

70.06 70.61 0.55 QVM

71.00 71.44 0.44 Phyllite

71.44 71.60 0.16 QVM

71.60 72.55 0.95 Phyllite

72.55 73.15 0.6 Phyllite+QVM

73.15 74.00 0.85 Phyllite

74.00 77.00

3

Phyllite altered via

hydrothermal activity

and Qtz vein

77.00 80.00 3 Phyllite+Arenite


83.00 86.00

3

Phyllite+Arenaceous

Phyllite


86.17 86.32 0.15 QVM+Phyllite

86.32 89.00

2.68

Phyllite+Arenaceous

phyllite

89.00- 89.28 0.28 Arenite

89.28 89.34 0.06 QVM

89.34 92.00

2.66

Arenite+Greenish

phyllite

92.00- 92.90 0.9 phyllite

92.90 93.15 0.25 MZ( Phyllite) Arsenopyrite

93.15 95.00 1.85 Phyllite

95.00 95.37 0.37 Arenite

95.37 95.80 0.43 Arenite Arsenopyrite in small patches

95.80 104.00 8.2 Arenite


125.00 128.20 3.2 Phyllite greenish

128.20 128.84 0.64 QVG

128.84 130.61

1.77

Greenish phyllite Along the foliation

arsenopyrite is present

131.00 136.27

5.27

Arenaceous Phyllite Specks of Arsenopyrite

observed in the cross-section

136.27 137.00

0.73

Arenite +Specks of

Arsenopyrite

Specks of

Arsenopyrite+Chalcopyrite

137.00 137.25 0.25 Phyllite

137.25 138.10 0.85 Arenite

138.10 140.00

1.9

Greenish phyllite along the foliation of greenish

phyllite arsenopyrite is present

85

IX.05: Core Recovery percentage

Core recovery percentage of individual boreholes for whole run was calculated and is

presented here in tabular form.

Table-XVII: Details of core recovery percentage of borehole no. CBH-01

Run (Mts) Core Recovery (%) Run (Mts) Core Recovery (%)

0.00-2.00 Nil 47.00-50.00 99%, 296cm

2.00-5.00 Nil 50.00-53.00 99%, 297cm

5.00-8.00 83%, 53.00-56.00 100%, 300cm

8.00-11.00 92.3%, 56.00-59.00 97%, 292cm

11.00-14.00 90%, 270cm 59.00-62.00 98%, 298cm

14.00-17.00 98%, 295cm 62.00-65.00 98%, 295cm

17.00-20.00 99%, 297cm 65.00-68.00 94%, 284cm

20.00-23.00 99%, 297cm 68.00-71.00 97%, 290cm

23.00-26.00 97%, 293cm 71.00-74.00 92%, 277cm

26.00-29.00 97%, 293cm 74.00-77.00 95.3%, 286cm

29.00-32.00 94%, 282cm 77.00-80.00 98%, 293cm

32.00-35.00 90%, 270cm 80.00-83.00 96%, 287cm

35.00-38.00 100%, 300cm 83.00-86.00 96%, 288cm

38.00-41.00 97%, 290cm 86.00-89.00 90%, 270cm

41.00-44.00 100%, 300cm 89.00-90.00 100%, 100cm

44.00-47.00 97%, 293cm

Table-XVIII : Details of core recovery percentage of borehole No. CBH-02

Run (Mts)

From- To

Core Recovery

(%)

Run (Mts)

From- To

Core Recovery (%)

0.00-2.00 Nil 77.00-80.00 85.6%, 257cm

2.00-5.00 Nil 80.00-83.00 88.5%, 265cm

5.00-8.00 76.3%, 229cm 83.00-86.00 87%, 260cm

8.00-11.00 38%, 113cm 86.00-89.00 84%, 283cm

11.00-14.00 12%, 36cm 89.00-92.00 99%, 297cm

14.00-17.00 41%, 123cm 92.00-95.00 96%, 287cm

17.00-20.00 Nil 95.00-98.00 92%, 282cm

20.00-23.00 47%, 140cm 98.00-101.00 99%, 298cm

23.00-26.00 21%, 64cm 101.00-104.00 97%, 292cm

26.00-29.00 93%, 280cm 104.00-107.00 97%, 290cm

29.00-32.00 93%, 290cm 107.00-110.00 100%, 300cm

32.00-35.00 57%, 170cm 110.00-113.00 100%, 300cm

35.00-38.00 65%, 195cm 113.00-116.00 95%, 285cm

38.00-41.00 71%, 214cm 116.00-119.00 97%, 291cm

86

41.00-44.00 84%, 253cm 119.00-122.00 94.3%, 283cm

44.00-47.00 84%, 253cm 122.00-125.00 96.6%, 290cm

47.00-50.00 94%, 282cm 125.00-128.00 91.8%, 275cm

50.00-53.00 86.6%, 260cm 128.00-131.00 97%, 291cm

53.00-56.00 87%, 262cm 131.00-134.00 93%, 280cm

56.00-59.00 90%, 270cm 134.00-137 98%, 295cm

59.00-62.00 96%, 290cm 137.00-140.00 98%, 295cm

62.00-65.00 93%, 281cm 140.00-143.00 95%, 286cm

65.00-68.00 88%, 264cm 143.00-146.00 98.6%, 296cm

68.00-71.00 89%, 267cm 146.00-149.00 98%, 293cm

71.00-74.00 97.6%, 293cm 149.00-150 95%, 95.00cm

74.00-77.00 100%, 300cm

Table-XIX : Details of core recovery percentage of borehole no. CBH-03

Run (Mts)

From- To

Core Recovery

(%)

Run (Mts)

From- To Core Recovery (%)

00.00-2.00 Nil 95.00-98.00 293cm,98%

2.00-5.00 Nil 98.00-101.00 300cm,100%

5.00-8.00 244cm,81% 101.00-104.00 294cm,98%

08.00-11.00 277cm,92% 107.00-110.00 300cm,100%

11.00-14.00 272cm,91% 110.00-113.00 285cm,95%

14.00-17.00 288cm,96% 113.00-116.00 300cm,100%

17.00-20.00 280cm,93% 116.00-119.00 300cm,100%

20.00-23.00 262cm,87.3% 119.00-122.00 288cm,96%

23.00-26.00 224cm,74.6% 122.00-125.00 297cm,99%

26.00-29.00 290cm,96.6% 125.00-128.00 279cm,93%

29.00-32.00 284cm,94.6% 128.00-131.00 282cm,94%

32.00-35.00 282cm,94% 131.00-134.00 275cm,92%

35.00-38.00 284cm,94% 134.00-137.00 295cm,98%

38.00-41.00 300cm,100% 137.00-140.00 278cm,93%

41.00-44.00 298cm,99.3% 140.00-142.00 175cm,87.5%

44.00-47.00 290cm,96.6% 86.00-89.00 298cm,99%

47.00-50.00 297cm,99% 89.00-92.00 271cm,90%

50.00-53.00 300cm,100% 92.00-95.00 300cm,100%

53.00-56.00 295cm,98% 95.00-98.00 293cm,98%

56.00-59.00 289cm,96% 98.00-101.00 300cm,100%

59.00-62.00 300cm,100% 101.00-104.00 294cm,98%

62.00-65.00 288cm,96% 107.00-110.00 300cm,100%

65.00-68.00 297cm,99% 110.00-113.00 285cm,95%

68.00-71.00 296cm,99% 113.00-116.00 300cm,100%

71.00-74.00 284cm,95% 116.00-119.00 300cm,100%

74.00-77.00 294cm,98% 119.00-122.00 288cm,96%

87

77.00-80.00 297cm,99% 122.00-125.00 297cm,99%

80.00-83.00 294cm,98% 125.00-128.00 279cm,93%

83.00-86.00 294cm,98% 128.00-131.00 282cm,94%

86.00-89.00 298cm,99% 131.00-134.00 275cm,92%

86.00-89.00 298cm,99% 134.00-137.00 295cm,98%

89.00-92.00 271cm,90% 137.00-140.00 278cm,93%

92.00-95.00 300cm,100% 140.00-142.00 175cm,87.5%

Table-XX: Details of core recovery percentage of borehole No. CBH-04

Run (Mts)

From- To

Core Recovery

(%)

Run (Mts)


00.00-2.00 Nil 38.00-41.00 97% 291cm

2.00-5.00 Nil 41.00-44.00 95%, 284cm

5.00-8.00 Nil 44.00-47.00 98%, 295cm

8.00-11.00 Nil 47.00-50.00 100%, 300cm

11.00-14.00 48%,144cm 50.00-53.00 97%, 290cm

14.00-17.00 89%,268cm 53.00-56.00 95%, 285cm

17.00-20.00 55%,166cm 56.00-59.00 97%, 292cm

20.00-23.00 43%,129cm 59.00-62.00 100%, 300cm

23.00-26.00 Nil 62.00-65.00 97%, 292cm

26.00-29.00 57% 170cm 68.00-71.00 100%, 300cm

29.00-32.00 91%, 72cm 71.00-74.00 98%, 294cm

32.00-35.00 86%,258cm 74.00-77.00 97%, 292cm

35.00-38.00 98%,293cm 77.00-80.00 97%, 290cm

Table-XXI: Details of core recovery percentage of borehole no. CBH-05

Run (Mts)

From- To

Core Recovery

(%)

Run (Mts)


00.00-2.00 Nil 53.00-56.00 280cm,93%

2.00-5.00 Nil 56.00-59.00 273cm,91%

5.00-8.00 Nil 59.00-62.00 290cm,96%

8.00-11.00 Nil 62.00-65.00 281cm,94%

11.00-14.00 223cm,74% 65.00-68.00 284cm,95%

14.00-17.00 180cm,60% 68.00-71.00 276cm,92%

17.00-20.00 227cm,75.6% 71.00-74.00 285cm,95%

20.00-23.00 250cm,83.3% 74.00-77.00 291cm,97%

23.00-26.00 230cm,76.6% 77.00-80.00 280cm,93%

26.00-29.00 240cm,80% 80.00-83.00 289cm,96.3%

29.00-32.00 250cm,83% 83.00-86.00 280cm,93%

32.00-35.00 247cm,82.3% 86.00-89.00 289cm,96.3%

35.00-38.00 238cm,79% 89.00-92.00 284cm,94%

38.00-41.00 281cm,93% 92.00-95.00 289cm,96.3%

88

41.00-44.00 286cm,95% 95.00-98.00 280cm,93%

44.00-47.00 295cm,98% 98.00-101.00 290cm,96%

47.00-50.00 280cm,93% 101.00-104.00 300cm,100%

50.00-53.00 289cm,96% 104.00-107.00 282cm,94%

107.00-110.00 287cm,96% 119.00-122.00 291cm,97%

110.00-113.00 284cm,95% 122.00-125.00 286cm,95%

113.00-116.00 260cm,87% 125.00-128.00 290cm,97%

116.00-119.00 287cm,96% 128.00-130.00 194cm,97%

Table-XXII: Details of core recovery percentage of borehole no. CBH-06

Run (Mts)

From- To

Core Recovery

(%)

Run (Mts)


00.00-2.00 Nil 62.00-65.00 264cm,88%

2.00-5.00 Nil 65.00-68.00 295cm,98%

5.00-8.00 Nil 68.00-71.00 298cm,99%

8.00-11.00 Nil 71.00-74.00 280cm,93%

11.00-14.00 272cm,90% 74.00-77.00 280cm,93%

14.00-17.00 Nil 77.00-80.00 290cm,96%

17.00-20.00 300cm,100% 80.00-83.00 280cm,93%

20.00-23.00 293cm,97% 83.00-86.00 287cm,96%

23.00-26.00 278cm,92% 86.00-89.00 274cm,91%

26.00-29.00 282cm,94% 89.00-92.00 270cm,90%

29.00-32.00 252cm,84% 92.00-95.00 292cm,97%

32.00-35.00 252cm,84% 95.00-98.00 296cm,98%

35.00-38.00 260cm,87% 98.00-101.00 295cm,98%

38.00-41.00 282cm,94% 101.00-104.00 278cm,93%

41.00-44.00 282cm,94% 104.00-107.00 292cm,97%

44.00-47.00 276cm,92% 107.00-110.00 298cm,99%

47.00-50.00 270cm,90% 110.00-113.00 294cm,98%

50.00-53.00 273cm,91% 113.00-116.00 287cm,96%

53.00-56.00 300cm,100% 116.00-119.00 297cm,99%

56.00-59.00 290cm,96% 119.00-122.00 297cm,99%

59.00-62.00 300cm,100% 122.00-123.00 100cm,100%

Table-XXIII: Details of core recovery percentage of borehole no. CBH-07

Run (Mts)

From- To

Core Recovery

(%)

Run (Mts)


00.00-2.00 Nil 14.00-17.00 98cm,33%

2.00-5.00 Nil 17.00-20.00 105cm,35%

5.00-8.00 42cm, 14% 20.00-23.00 67cm,22%

8.00-11.00 Nil 23.00-26.00 183cm,61%

11.00-14.00 64cm,% 26.00-29.00 262cm,87%

89

35.00-38.00 233cm,77% 89.00-92.00 287cm,95%

38.00-41.00 93cm,31% 92.00-95.00 290cm,97%

41.00-44.00 98cm,32% 95.00-98.00 279cm,93%

44.00-47.00 280cm,93.3% 98.00-101.00 300cm,100%

47.00-50.00 267cm,89% 101.00-104.00 300cm,100%

50.00-53.00 255cm,85% 104.00-107.00 280cm,93%

53.00-56.00 280cm,93.3% 107.00-110.00 293cm,97%

56.00-59.00 289cm,96.3% 110.00-113.00 293cm,97%

59.00-62.00 283cm,94.3% 113.00-116.00 265cm,88%

62.00-65.00 288cm,96% 116.00-119.00 270cm,90%

65.00-68.00 289cm,96% 119.00-122.00 250cm,83%

65.00-71.00 261cm,87% 122.00-125.00 283cm,94%

71.00-74.00 270cm,90% 125.00-128.00 290cm,97%

74.00-77.00 280cm,93% 128.00-131.00 261cm,87%

77.00-80.00 290cm,96% 131.00-134.00 256cm,85.3%

80.00-83.00 300cm,100% 134.00-137.00 280cm,93.3%

83.00-86.00 297cm,99% 137.00-140.00 285cm,95%

86.00-89.00 285cm,95%

IX.06: Geophysical logging of borehole and correlation with borehole Geology

Geophysical borehole loggings have been carried out in boreholes CBH-1, CBH-2, CBH-3,

CBH-4,CBH-5, CBH-6 and CBH-7, Chakariya block, Singrauli, Madhya Pradesh by

deploying microlloger unit and acquired the data of Self Potential, Single Point Resistance,

Natural Gamma and Resistivity by the geophysicist, GSI, Nagpur. Resistance / Resistivity

logs in conjunction with SP log prove useful in detection of mineralized zones. The details of

mineralization as reported by geophysical borehole loggings are as follows.

Table-XXIV: Geophysical logging of borehole and correlation with borehole geology of

CBH-01

Total drilled depth – 90.00 m;

Reported mineralization: -

Mineralizatio

n observed by

Geophysical

logging,

Depth (m)

Mineralized

zone observed

by borehole

logging, Depth

(m)

Rock Types

From To

35.00-38.00 34.9 35.2 Arenite +QVG +Arsenopyrite

38.27-41.00 36.95 37.55

Phyllite+ QVG

+Arsenopyrite++Scorodite+Chalcopyrite+Pyrrhotite+Are

90

nite

50.79.50.82

53.07-53.09 53 53.25 Arenaceous Phyllite+Chalcopyrite+Arsenopyrite

56.61-57.63 --- --

63.59-66.52 --- ---

77.14-77.83 77.02 77.87

Arsenopyrite+Scorodite+Chalcopyrite +Arenaceous

Phyllite

78.00-78.70

77.97 78.57

Arsenopyrite+Scorodite+ Chalcopyrite +Arenaceous

Phyllite

79.23-80.02 --- ----

80.46-80.95 --- --

81.90-82.00 -- --

84.76-84.96 84.87 85.12 QVG+ Phyllite +Arsenopyrite

85.30-85.47 85.49 85.74 Arenaceous Phyllite +Arsenopyrite +Phyllite

-- 87.5 87.75 QVG+ Phyllite +Arsenopyrite

---- 88.95 89.25 QVG+ Phyllite+ Arsenopyrite+ Chalcopyrite

--- 89.25 89.5 QVG+ Phyllite+ Arsenopyrite+ Chalcopyrite

-- 89.5 89.8 QVG+ Phyllite+ Arsenopyrite+ Chalcopyrite

Table-XXV: Geophysical logging of borehole and correlation with borehole geology of

CBH-02


Reported mineralization is: -

Mineralizatio

n observed by

Geophysical

logging,

Depth (m)

Mineralized

zone observed

by borehole

logging, Depth

(m)

Rock Types

From To

44.46-44.62

44.38 44.63

Phyllite + QVG + Scorodite + Arsenopyrite +

Chalcopyrite

46.72-46.80 46.55 46.8 Phyllite +QVG+ Scorodite

47.24-47.60

47.2 47.5

Arenaceous Phyllite + QVG + Scorodite

+ Chalcopyrite + Arsenopyrite

48.59-48.65 48.65 48.9 Phyllite + QVG + Scorodite

49.60-49.74

49.88 50.13

Arenaceous

Phyllite+Phyllite+Chalcopyrite+Arsenopyrite

50.00-50.13

59.00-62.00

60.8 61.4

Arenaceous Phyllite + Phyllite + QVG+ Chalcopyrite

+Arsenopyrite+Scorodite

61.5 61.8 Arenaceous Phyllite,+QVG+Chalcopyrite+ Arsenopyrite

63.55-65.08 63.35 65.15 Phyllite + QVG + Scorodite+Arsenopyrite+Chalcopyrite

65.84-66.30 66.05 66.65 Phyllite + QVG + Scorodite+Arsenopyrite

66.60-67.10 67.05 67.65 Arenite + QVG + Scorodite+Chalcopyrite

68.57-70.00 68.6 69.1 QVM + Chalcopyrite+Arsenopyrite

71.00-77.00 69.9 70.15 Arenite + Chalcopyrite+ Arsenopyrite

91

70.95 71.45

QVM + Chalcopyrite

+Arsenopyrite+Pyrite

83.00-86.00 84.5 84.75 Phyllite+QVG

95.00-98.00 --- --- ----

101.00-104.00 --- --- ---

105.90-106.00

105.85 106.1


+Chalcopyrite

108.27-108.31

108.2 108.45


+Chalcopyrite

113.21-114.95

113.15 113.75

Arenite + QVG + Scorodite + Chalcopyrite +

Arsenopyrite

118.00-118.06

113.95 114.2


Arsenopyrite

131.18-131.62

114.5 114.75


Arsenopyrite

----

131.2 131.5

Arenite + Scorodite + Arsenopyrite + QVM +

Chalcopyrite + QVM

---- 147.8 148.8 Arenaceous Phyllite + Arsenopyrite + QVM + Scorodite

---- 148.85 149.05 Arenaceous Phyllite + QVM + Arsenopyrite+ Scorodite

Table-XXVI: Geophysical logging of borehole and correlation with borehole geology of

CBH-03



Mineralizatio

n observed by

Geophysical

logging,

Depth (m)

Mineralized

zone observed

by borehole

logging, Depth

(m)

Rock Types

From To

28.45 28.7 Phyllite+QVG+Scorodite

42.25 42.55 Phyllite+QVM

44.52-44.78 --- ---

46.14-46.40 --- ---

--- 48.95 49.55 Phyllite+QVM

---- 52.45 52.7 Phyllite+QVM

--- 53.65 54.15 Phyllite+QVG+Scorodite

--- 57.75 58.05 Phyllite+QVG+Scorodite

--- 65.5 65.8 QVG+Scorodite

78.25-79.97 78.3 78.6 Arenite+QVG+Scorodite+arsenopyrite

---- 79.6 79.85 Arenite+QVG+Scorodite+arsenopyrite

--- 82.3 82.55 Arenite+Pyrite+Arsenopyrite

--- 83.05 83.3 QVG+Scorodite

98.75-101.00 100.55 100.85 Phyllite+QVG+Scorodite+Arsenopyrite+Pyrite

107.85-108.85

92

Table-XXVII: Geophysical logging of borehole and correlation with borehole geology of

CBH-04



Mineralizatio

n observed by

Geophysical

logging,

Depth (m)

Mineralized

zone observed

by borehole

logging, Depth

(m)

Rock Types

From To

---- 36.5 36.75 QVG+Scorodite

42.59-42.67 40.75 41 QVG+Scorodite

50.47-53.00 52.6 53.1 QVG+Scorodite

--- 57.35 57.85 QVG+QVM

68.12-68.55 68.1 68.6 QVG+Scorodite

Table-XXVIII: Geophysical logging of borehole and correlation with borehole geology of

CBH-05



Mineralizatio

n observed by

Geophysical

logging,

Depth (m)

Mineralized

zone observed

by borehole

logging, Depth

(m)

Rock Types

From To

21.20-21.24 00.00 ---

21.58-21.61 --- 26.00

26.00-29.00 26 26.25 Phyllite+QVG

---- 26.5 27 Phyllite+QVG

---- 27.25 27.75 Phyllite+QVG

--- 28 28.25 Phyllite+QVG

31.50-32.50 31 31.25 Phyllite+QVG

--- 32.1 32.6 QVG

46.36-49.79 47.75 48.25 QVG+Scorodite+Arenaceous Phyllite

86.34-86.47 86.65 86.95 QVG

89.92-90.09 89.5 90 QVG

90.42-91.77 -- ---

92.82-93.20 92.6 93.1 Arenaceous Phyllite+Arsenopyrite

94.01-94.16 93.7 94.2 QVG+Arsenopyrite+Arenaceous Phyllite

101.04-101.11 112.3 113.30 QVG+Arenaceous phyllite

107.00-110.00 127 127.5 QVG+Arenaceous phyllite

--- 127.7 127.95 QVG+Arenaceous phyllite

93

Table-XXIX: Geophysical logging of borehole and correlation with borehole geology of

CBH-06



Mineralizatio

n observed by

Geophysical

logging,

Depth (m)

Mineralized

zone observed

by borehole

logging, Depth

(m)

Rock Types

From To

30.73-31.13 31.1 31.6 QVM+Arsenopyrite

35.86-37.27 35.9 36.65 Arenaceous Phyllite + QVG + Arsenopyrite + Scorodite

--- 36.8 37.3 Arenaceous Phyllite + QVG + Arsenopyrite + Scorodite

--- 38.5 38.75 Arenaceous Phyllite + QVG

--- 48 48.25 QVM

54.07-54.21 54.25 54.5 QVM + Arenaceous Phyllite + Arsenopyrite

54.48-55.63 55.4 55.65 QVM + Arsenopyrite

--- 66.85 67.45 QVG + Scorodite + Arenite

80.00-83.00 80.25 81.75 Arenite + Arenaceous Phyllite + Chalcopyrite

--- 81.75 82 Arenite + Arenaceous Phyllite + Chalcopyrite

89.80-90.00 89.75 90.05 Phyllite + QV intrusion

Table-XXX: Geophysical logging of borehole and correlation with borehole geology of

CBH-07



Mineralizatio

n observed by

Geophysical

logging,

Depth (m)

Mineralized

zone observed

by borehole

logging, Depth

(m)

Rock Types

From To

--- 53.4 53.65 Phyllite+Arsenopyrite

--- 61.25 61.55 Greenish Phyllite + Arsenopyrite + QVW + Chalcopyrite

--- 67.95 68.45 Phyllite+Arsenopyrite

92.90-93.15 93 93.25 Phyllite+Arsenopyrite

95.37-95.80 -- --

128.65 128.95 Phyllite+Arsenopyrite

136.27-137.00 --- --

94

Figure-XVIII: Geophysical log showing the reported mineralized zone and inferred

mineralized zone on the basis of Geophysical log of Borehole no. CBH-01

95

Figure-XI: Geophysical log showing the reported mineralized zone and inferred mineralized

zone on the basis of Geophysical log of Borehole no. CBH-02

96

Figure-XII: Geophysical log showing the reported mineralized zone and inferred mineralized


97

Figure-XIII: Geophysical log showing the reported mineralized zone and inferred


98

Figure-XIV: Geophysical log showing the reported mineralized zone and inferred


99

Figure-XV: Geophysical log showing the reported mineralized zone and inferred mineralized


100

Figure-XVI: Geophysical log showing the reported mineralized zone and inferred


101

IX.07: Mineralogy of ore zone

The gold mineralisation is mainly associated with „scorodite‟ and „grey quartz vein‟.

Secondary alteration of arsenopyrite has given rise to a powdery arsenate known as

„scorodite‟. Scorodite band extends nearly for 800 metres as detached bodies. Both these

rocks have high incidence of gold occurrences on surface as seen in trench samples and in the

subsurface as seen in drill cores.

Minor mineralization is present in BIF and phyllite. Mineralization is both of epigenetic and

syngenetic nature. Epigenetic mineralization is present in the form of Vein type deposits in

phyllites and scorodite bands while syngenetic mineralization is concentrated within chert

bands of BIFs. Mineralization is also present in micro-fractures in the rocks.

Field Photograph–XIII: specks of

arsenopyrite core along with quartz vein grey.

Borehole No.CBH-01

Field Photograph-XIV: specks of

arsenopyrite and chalcopyrite observed in

core along with quartz vein grey. Borehole

No.CBH-02

Arsenopyrite

102

Field Photograph-XV: specks of chalcopyrite

in core along with quartz vein grey. Borehole

No.CBH-01

Field Photograph-XVI: specks of

chalcopyrite observed in core samples along

the fracture in quartz vein grey, Borehole

No.CBH-01

Field Photograph-XVII: specks of

arsenopyrite along the foliation plane of

arenite. Borehole No.CBH-02

Field Photograph-XVIII: Blebs of

Chalcopyrite in Quartz vein grey

Borehole No.CBH-02

Arsenopyrite

Chalcopyrite

Chalcopyrite

Chalcopyrite

103

Field Photograph-XIX: specks of arsenopyrite, scorodite in grey quartz vein. Borehole

No.CBH-02

Field Photograph-XX: specks of arsenopyrite,chalcopyrite chlorite in grey quartz vein, host

rock arenaceous phyllite, Borehole No.CBH-02

Field Photograph-XXI: specks of

arsenopyrite, chalcopyrite in quartz vein grey

in arenaceous phyllite, Borehole No.CBH-02

Field Photograph-XXII: specks of

arsenopyrite in arenaceous phyllite. Borehole

No.CBH-02

Arsenopyrite Scorodite

Grey quartz vein

Arsenopyrite

Arenaceous phyllite

Arsenopyrite Chalcopyrite

Quartz vein

grey

Arsenopyrite

Chlorite

Chalcopyrite

104

Field Photograph-XXIII: Chloritic vein contains arsenopyrite and chalcopyrite cross cutting

the foliation plane in arenaceous phyllite. Borehole No.CBH-05

The above figure shows the concentration of arsenopyrite, scorodite and chalcopyrite in

arenaceous phyllite and arenite. These minerals have been associated with the grey quartz

vein in the core samples. The nature of intrusion of quartz vein in areanaceous phyllite

suggests its epigenetic nature. The vein type mineralization which has been intruded along

the foliation and across the foliation as vein and stringers, which suggests mineralization in

chakariya block is epigenetic mineralization in nature in the form of vein type deposits. Small

isolated outcrop of scorodite has been observed near trench CT-09. At surface there is

indication of limonite, oxidation adjacent to greenish coloured hard compact chert band at the

contact of phyllite bands (Field Photograph – XIII and Field Photograph –XIV). At location

N24°17´4.7´´ E 82°43´39.8´´ fine lamination of silica sandwithched between iron rich layers,

some of the silica/chert layers are forming boudins and shows stretching along the foliation.

Direction of foliation is N65°W.

chlorite Arsenopyrite Chalcopyrite

105

Field Photograph-XXIV: Stretched Chert band within BIF forming boudins. Longitude:

82°43´43.2´´ Latitude: 24°17´3.8´´

IX.08: Borehole deviation test and methodology

Deflection of borehole from its intended course is termed as Bore-hole deviation.

It can be of two types:

1. Azimuthal deviation or horizontal deviation

2. Zenithal deviation or vertical deviation

Borehole deviation test has been carried out for each drilled borehole, with an aim to decipher

the angle which has been deviated from its normal course. Usually "Starting error" is caused

by setup error, some by drill platform instability and some by drill rod instability at the start

of the hole. We may not be able to control the accuracy of all the steps, but we can determine

Boudins of

chert band

106

where the hole has gone. For every 100 meters of drilling, a 2º error will cause 3.5 meters of

offset (3.5 feet/100 feet), which may or may not be within acceptable error. The rocks

through which the hole is drilled can influence the direction.

Check points: In deep borehole the azimuth deviation may be as large as 50m. Few borehole

reappear on the ground by deviation. When the angle of borehole is large the hole tends to be

perpendicular to it. High angle borehole have the general tendency to go upward due to

pressure of drilling rod behind the core bit whereas small angle borehole has the tendency to

become parallel to bedding and schistocity.

Cause for Borehole Deviation:

Alternate hard and soft formation, Presence of boulder bed, Cavity, shears etc. Low angle

borehole and presence of planer surface. Improper anchoring i.e. leveling of drilling machine.

Crooked and short drilling rods and loose coupling, Unequal pressure applied, Vibration due

to machine.

Etch Method or HF method was used for Borehole deviation.

Etch method is a method of measuring borehole deviation. This method use Hydrofluoric

acid (HF). It has the tendency to make mark on test tube when kept at least 3-4 hours.

Procedure: Test tube has been half filled with HF (Hydrofluoric acid), and housed in short

barrel. The apparatus has been lowered at desired depth i.e. at an interval of 30 mts each. The

test tube has been kept in the borehole for at least 3-4 hours. Result: HF itches out elliptical

mark on the tube measuring the horizontal depth at a position. Inclination of the tube has

been determined. HF marks on the test tube. The etched marked meniscus has been used to

estimate etched angle. A meniscus correction for capillary action of HF is advisable to

measure the angle. The estimated etched angle is correlated with the True angle and the

deviation is established. The borehole deviation chart is shown in Figure-XXVII. The

borehole deviation data are provided in Annexure-X.

Disadvantage: Azimuthal deviation couldn‟t be measured.

The deviation test for each borehole has been carried out at field, during the drilling at an

interval of 25m or 30m each. It has been inferred that the there is offset of 2° to 3° after the

100m and 150mts respectively..

107

Figure-XXVII: Diagram showing etch angle measurement from test tube (D.A. Berkman,)

108

IX.09: Methodology of ore zone sampling.

The Mineralized zones samples have been marked along the boreholes. The interval of

Sampling is 25cm, 30cm and 50cm. The zones which are less than 25cm have been neglected

for the sampling purposes. During the ore zone sampling Quartz vein Grey, Scorodite, specks

of arsenopyrite, pyrite has been given more emphasis as gold mineralization in Chakariya

block is associated with the sulphide zones. The numbering of samples has been initiated

from Borehole no. CBH-01 to CBH-07. The Sampling has been carried out to ascertain the

grade and metal value that vary in proportion form one another. It has been noted that single

sample taken from one part of the orebody generally doesn‟t provide a representative picture

of the grade of the entire ore body. So a large no of well spaced samples are required for

ascertaining the average grade with an acceptable amount of ore body. The sampling also

reveals the pattern of mineralisation within the ore richer and leaner ore portions. Therefore

after examination of the core, the sampling zone has been fixed.

As per the FSP a total of 100 samples have been marked. The details of Samples and their

interval are as follows.

109

Table-XXXI: Details of samples of mineralized zone from each borehole.

Sample No. From To

S.

Leng

th BH No. Lithology Description

As (ppm) Bi (ppm) Cu (ppm) Au (ppb)

001/CS/CBH01/2016-

17/JBP 34.9 35.2 30 CBH-01 Arenite+QVG+Arsenopyrite 1.50% 38.41 50 340

002/CS/CBH01/2016-

17/JBP 36.95 37.25 30 CBH-01 Phyllite+ QVG +Arsenopyrite 4965 7.61 0.69% 0.61 ppm

003/CS/CBH01/2016-

17/JBP 37.25 37.55 30 CBH-01

QVG

+Scorodite+Chalcopyrite+Pyrr

hotite+Arenite 7500 8.52 0.36%

410

004/CS/CBH01/2016-

17/JBP 53 53.25 25 CBH-01

Arenaceous

Phyllite+Chalcopyrite+Arsenop

yrite 3.10% 10.19 435

3.10 ppm

005/CS/CBH01/2016-

17/JBP 77.02 77.32 30 CBH-01

Arsenopyrite+Scorodite+Galen

a?+Chalcopyrite+Arenaceous

Phyllite 950 1.91 75

210

006/CS/CBH01/2016-

17/JBP 77.32 77.57 25 CBH-01



Phyllite 5.00% 20.34 405

2.11 ppm

007/CS/CBH01/2016-

17/JBP 77.57 77.87 30 CBH-01



Phyllite 5.10% 276.73 145

8.12 ppm

008/CS/CBH01/2016-

17/JBP 77.97 78.27 30 CBH-01



Phyllite 1180 2.50 285

300

009/CS/CBH01/2016-

17/JBP 78.27 78.57 30 CBH-01



Phyllite 3080 2.54 330

180

110

010/CS/CBH01/2016-

17/JBP 84.87 85.12 25 CBH-01 QVG+Phyllite+Arsenopyrite 97 0.67 65 40

011/CS/CBH01/2016-

17/JBP 85.49 85.74 25 CBH-01

Arenaceous

Phyllite+Arsenopyrite+Phyllite 3% 2.88 55 2.04 ppm

012/CS/CBH01/2016-

17/JBP 87.5 87.75 25 CBH-01 QVG+Phyllite+Arsenopyrite 1060 0.29 50 140

013/CS/CBH01/2016-

17/JBP 88.95 89.25 30 CBH-01

QVG+Phyllite+Arsenopyrite+

Chalcopyrite 1.50% 4.37 460 3.21 ppm

014/CS/CBH01/2016-

17/JBP 89.25 89.5 25 CBH-01


Chalcopyrite 2500 0.66 130 130

015/CS/CBH01/2016-

17/JBP 89.5 89.8 30 CBH-01


Chalcopyrite 120 0.14 40 45

016/CS/CBH02/2016-

17/JBP 44.38 44.63 25 CBH-02

Phyllite+QVG+Scorodite+Arse

nopyrite+Chalcopyrite 90 <0.1 25 <25

017/CS/CBH02/2016-

17/JBP 46.55 46.8 25 CBH-02 Phyllite+QVG+Scorodite 89 0.17 55 <25

018/CS/CBH02/2016-

17/JBP 47.2 47.5 30 CBH-02

Arenaceous

Phyllite+QVG+Scorodite+Chal

copyrite+Arsenopyrite 81 0.70 110

<25

019/CS/CBH02/2016-

17/JBP 48.65 48.9 25 CBH-02 Phyllite+QVG+Scorodite 68 0.29 55 190

020/CS/CBH02/2016-

17/JBP 49.88 50.13 25 CBH-02

Arenaceous

Phyllite+Phyllite+Chalcopyrite

+Arsenopyrite 83 0.98 155

30

021/CS/CBH02/2016-

17/JBP 60.8 61.1 30 CBH-02

Arenaceous

Phyllite+Phyllite+QVG+Chalc

opyrite+Arsenopyrite 61 <0.1 35

60

022/CS/CBH02/2016-

17/JBP 61.1 61.4 30 CBH-02 QVG+Scorodite 48 <0.1 15 40

023/CS/CBH02/2016-

17/JBP 61.5 61.8 30 CBH-02

Arenaceous

Phyllite+QVG+Chalcopyrite+50 0.51 210 <25

111

Arsenopyrite

024/CS/CBH02/2016-

17/JBP 63.35 63.65 30 CBH-02


nopyrite+Chalcopyrite 103 4.84 235 290

025/CS/CBH02/2016-

17/JBP 63.65 63.9 25 CBH-02


nopyrite+Chalcopyrite 1650 0.32 450 <25

026/CS/CBH02/2016-

17/JBP 63.9 64.4 50 CBH-02


nopyrite+Chalcopyrite 2670 2.50 0.18% 180

027/CS/CBH02/2016-

17/JBP 64.4 64.65 25 CBH-02


nopyrite+Chalcopyrite 3200 0.76 125 <25

028/CS/CBH02/2016-

17/JBP 64.65 64.9 25 CBH-02



029/CS/CBH02/2016-

17/JBP 64.9 65.15 25 CBH-02



030/CS/CBH02/2016-

17/JBP 66.05 66.35 30 CBH-02


nopyrite 809 14.93 0.13% 330

031/CS/CBH02/2016-

17/JBP 66.35 66.65 30 CBH-02

Arenite+Scorodite+Arsenopyrit

e+QVM+Chalcopyrite 114 0.79 55 <25

032/CS/CBH02/2016-

17/JBP 67.05 67.35 30 CBH-02

Arenite+QVG+Scorodite+Chal

copyrite 870 0.14 55 <25

033/CS/CBH02/2016-

17/JBP 67.35 67.65 30 CBH-02


copyrite 123 0.28 420 <25

034/CS/CBH02/2016-

17/JBP 68.6 69.1 50 CBH-02

QVM+Chalcopyrite+Arsenopy

rite 1991 0.75 235 25

035/CS/CBH02/2016-

17/JBP 69.9 70.15 25 CBH-02

Arenite+Chalcopyrite+Arsenop

yrite 509 0.34 570 <25

036/CS/CBH02/2016-

17/JBP 70.95 71.45 50 CBH-02

QVM+Chalcopyrite+Arsenopy

rite+Pyrite 1.10% 5.53 555 380

037/CS/CBH02/2016-

17/JBP 84.5 84.75 25 CBH-02 Phyllite+QVG 74 0.16 55 <25

038/CS/CBH02/2016-

17/JBP 105.85 106.1 25 CBH-02

Arenite+Arsenopyrite+Chalcop

yrite 1900 0.42 650 1.91 ppm

112

039/CS/CBH02/2016-

17/JBP 108.2 108.45 25 CBH-02

Arenite+Arsenopyrite+Chalcop

yrite 3.30% 6.04 940 55

040/CS/CBH02/2016-

17/JBP 113.15 113.45 30 CBH-02


copyrite+Arsenopyrite 1590 0.36 360 <25

041/CS/CBH02/2016-

17/JBP 113.45 113.75 30 CBH-02


copyrite+Arsenopyrite 1730 0.76 185 1.11 ppm

042/CS/CBH02/2016-

17/JBP 113.95 114.2 25 CBH-02


copyrite+Arsenopyrite 1170 21.85 1.32%

125

043/CS/CBH02/2016-

17/JBP 114.5 114.75 25 CBH-02


copyrite+Arsenopyrite 2350 1.87 0.18% 115

044/CS/CBH02/2016-

17/JBP 131.2 131.5 25 CBH-02

Arenite+Scorodite+Arsenopyrit

e+QVM+Chalcopyrite+QVM 2345 2.08 370 55

045/CS/CBH02/2016-

17/JBP 147.8 148.3 50 CBH-02

Arenaceous

Phyllite+Arsenopyrite+QVM+

Scorodite 1980 4.48 320

195

046/CS/CBH02/2016-

17/JBP 148.3 148.55 25 CBH-02

Arenaceous

Phyllite+QVM+Arsenopyrite+

Scorodite 390 1.64 165

120

047/CS/CBH02/2016-

17/JBP 148.55 148.8 30 CBH-02

Arenaceous


Scorodite 230 0.17 80

<25

048/CS/CBH02/2016-

17/JBP 148.85 149.05 25 CBH-02

Arenaceous


Scorodite 2620 0.78 115

25

049/CS/CBH03/2016-

17/JBP 28.45 28.7 25 CBH-03 Phyllite+QVG+Scorodite 122 0.36 <10 <25

050/CS/CBH03/2016-

17/JBP 42.25 42.55 30 CBH-03 Phyllite+QVM 2650 0.52 265 25

051/CS/CBH03/2016-

17/JBP 48.95 49.25 30 CBH-03 Phyllite+QVM 2225 0.15 35 <25

052/CS/CBH03/2016-

17/JBP 49.25 49.55 30 CBH-03 Phyllite+QVM 1% 0.57 10 <25

113

053/CS/CBH03/2016-

17/JBP 52.45 52.7 25 CBH-03 Phyllite+QVM 210 <0.1 35 <25

054/CS/CBH03/2016-

17/JBP 53.65 54.15 50 CBH-03 Phyllite+QVG+Scorodite 10% 56.98 25 1.22 ppm

055/CS/CBH03/2016-

17/JBP 57.75 58.05 30 CBH-03 Phyllite+QVG+Scorodite 780 0.31 10 40

056/CS/CBH03/2016-

17/JBP 65.5 65.8 30 CBH-03 QVG+Scorodite 1400 0.55 10 <25

057/CS/CBH03/2016-

17/JBP 78.3 78.6 30 CBH-03

Arenite+QVG+Scorodite+arsen

opyrite 1060 0.67 205 30

058/CS/CBH03/2016-

17/JBP 79.6 79.85 25 CBH-03

Arenite+QVG+Scorodite+arsen

opyrite 1% 25.05 760 1.02 ppm

059/CS/CBH03/2016-

17/JBP 82.3 82.55 25 CBH-03 Arenite+Pyrite+Arsenopyrite 1.20% 2.59 690 310

060/CS/CBH03/2016-

17/JBP 83.05 83.3 25 CBH-03 QVG+Scorodite 235 0.10 20 35

061/CS/CBH03/2016-

17/JBP 100.55 100.85 30 CBH-03


nopyrite+Pyrite 1505 1.74 175 70

062/CS/CBH04/2016-

17/JBP 36.5 36.75 25 CBH-04 QVG+Scorodite 2360 5.37 0.17% 1.41 ppm

063/CS/CBH04/2016-

17/JBP 40.75 41 25 CBH-04 QVG+Scorodite 100 0.33 60 40

064/CS/CBH04/2016-

17/JBP 52.6 53.1 50 CBH-04 QVG+Scorodite 197 0.14 20 <25

065/CS/CBH04/2016-

17/JBP 57.35 57.85 50 CBH-04 QVG+QVM 186 <0.1 25 <25

066/CS/CBH04/2016-

17/JBP 68.1 68.6 50 CBH-04 QVG+Scorodite 423 9.04 0.14% 50

067/CS/CBH05/2016-

17/JBP 26 26.25 25 CBH-05 Phyllite+QVG 209 1.15 60 30

068/CS/CBH05/2016-

17/JBP 26.5 27 50 CBH-05 Phyllite+QVG 130 <0.1 125 <25

114

069/CS/CBH05/2016-

17/JBP 27.25 27.75 50 CBH-05 Phyllite+QVG 131 <0.1 55 <25

070/CS/CBH05/2016-

17/JBP 28 28.25 25 CBH-05 Phyllite+QVG 2230 0.31 210 <25

071/CS/CBH05/2016-

17/JBP 31 31.25 25 CBH-05 Phyllite+QVG 2895 0.32 155 <25

072/CS/CBH05/2016-

17/JBP 32.1 32.6 50 CBH-05 QVG 1980 <0.1 40 <25

073/CS/CBH05/2016-

17/JBP 47.75 48.25 50 CBH-05

QVG+Scorodite+Arenaceous

Phyllite 97 <0.1 10 <25

074/CS/CBH05/2016-

17/JBP 86.65 86.95 30 CBH-05 QVG 58 <0.1 15 <25

075/CS/CBH05/2016-

17/JBP 89.5 90 50 CBH-05 QVG 144 0.12 10 <25

076/CS/CBH05/2016-

17/JBP 92.6 93.1 50 CBH-05

Arenaceous


077/CS/CBH05/2016-

17/JBP 93.7 94.2 50 CBH-05

QVG+Arsenopyrite+Arenaceo

us Phyllite 121 0.49 125 30

078/CS/CBH05/2016-

17/JBP 112.3 112.8 50 CBH-05 QVG+Arenaceous phyllite 2700 0.76 170 <25

079/CS/CBH05/2016-

17/JBP 112.8 113.2 50 CBH-05 QVG+Arenaceous phyllite 3880 0.74 115 40

080/CS/CBH05/2016-

17/JBP 127 127.5 50 CBH-05 QVG+Arenaceous phyllite 100 <0.1 10 <25

081/CS/CBH05/2016-

17/JBP 127.7 127.95 25 CBH-05 QVG+Arenaceous phyllite 2000 4.21 10 75

082/CS/CBH06/2016-

17/JBP 31.1 31.6 50 CBH-06 QVM+Arsenopyrite 210 <0.1 15 <25

083/CS/CBH06/2016-

17/JBP 35.9 36.15 25 CBH-06

Arenaceous

Phyllite+QVG+Arsenopyrite+S

corodite 80 <0.1 10

35

084/CS/CBH06/2016-

17/JBP 36.15 36.65 50 CBH-06

Arenaceous


corodite 250 0.32 35

<25

115

085/CS/CBH06/2016-

17/JBP 36.8 37.3 50 CBH-06

Arenaceous


corodite 260 <0.1 55

<25

086/CS/CBH06/2016-

17/JBP 38.5 38.75 25 CBH-06 Arenaceous Phyllite+QVG 105 0.11 15 <25

087/CS/CBH06/2016-

17/JBP 48 48.25 25 CBH-06 QVM 65 <0.1 15 <25

088/CS/CBH06/2016-

17/JBP 54.25 54.5 25 CBH-06

QVM+Arenaceous


089/CS/CBH06/2016-

17/JBP 55.4 55.65 25 CBH-06 QVM+Arsenopyrite 97 <0.1 60 <25

090/CS/CBH06/2016-

17/JBP 66.85 67.45 50 CBH-06 QVG+Scorodite+Arenite 230 0.28 40 115

091/CS/CBH06/2016-

17/JBP 80.25 80.75 50 CBH-06

Arenite+Arenaceous

Phyllite+Chalcopyrite 180 0.43 105 25

092/CS/CBH06/2016-

17/JBP 80.75 81.25 50 CBH-06

Arenite+Arenaceous


093/CS/CBH06/2016-

17/JBP 81.25 81.75 50 CBH-06

Arenite+Arenaceous


094/CS/CBH06/2016-

17/JBP 81.75 82 25 CBH-06

Arenite+Arenaceous

Phyllite+Chalcopyrite 150 <0.1 20 <25

095/CS/CBH06/2016-

17/JBP 89.75 90.05 30 CBH-06 Phyllite+QV intrusion 105 15.51 4.18% 380

096/CS/CBH07/2016-

17/JBP 53.4 53.65 25 CBH-07 Phyllite+Arsenopyrite 275 0.97 275 175

097/CS/CBH07/2016-

17/JBP 61.25 61.55 30 CBH-07

Greenish

Phyllite+Arsenopyrite+QVW+

Chalcopyrite 264 0.19 140

<25

098/CS/CBH07/2016-

17/JBP 67.95 68.45 50 CBH-07 Phyllite+Arsenopyrite 85 <0.1 15 <25

099/CS/CBH07/2016-

17/JBP 93 93.25 25 CBH-07 Phyllite+Arsenopyrite 80 2.04 770 125

100/CS/CBH07/2016-

17/JBP 128.65 128.95 30 CBH-07 Phyllite+Arsenopyrite 930 0.19 30 <25

116

Borehole no. Sample length Total no. of Samples Total no. of

Samples

CBH-01 25cm 09 15

CBH-01 30cm 06

CBH-02 25cm 16 32

CBH-02 30cm 12

CBH-02 50cm 04

CBH-03 25cm 06 14

CBH-03 30cm 07

CBH-03 50cm 01

CBH-04 25cm 02 05

CBH-04 50cm 03

CBH-05 25cm 04 15

CBH-05 30cm 01

CBH-05 50cm 10

CBH-06 25cm 06 14

CBH-06 30cm 01

CBH-06 50cm 08

CBH-07 25cm 02 05

CBH-07 30cm 02

CBH-07 50cm 01

Total No. 100

IX.10: Sample preparation, Chemical analysis and laboratory procedures.

Methodology of sample preparation:

Core Samples: The sampling procedure is a very important aspect of G-2 items. Any small

error in the sampling methodology may lead to erroneous result and wrong interpretation.

Due to the significantly increased performance of analytical methods especially in terms of

sensitivity, precision and accuracy, the most dominant source of error is sampling. For this

reason conventional sampling procedures should be strictly followed to avoid contamination

during sampling. Drilled cores were cut into four half by core splitter/core cutter. Two half

was used for the preparation of Core samples. The core samples were crushed completely and

powdered upto -120 mesh. Sieved through -120 mesh using standard sieve of ASTM

standard. After homogenization and coning and quartering.

Coning and Quartering:

Sample

117

The samples were packed in tight polythene bags with properly numbered. The Samples were

divided into two equal parts. One part was stored as the original sample and the other part

was submitted to respective geochemical division for geochemical analysis. Third parts of the

core-samples were prepared as chip samples for the Beneficiation study. Fourth part of the

samples is kept within the core-boxes and submitted to office.

IX.11: Check samples: At least 10% of samples may be analysed from third party

NABL accredited or other accredited labs.

The samples have been submitted to Director, Geochemical laboratory, SU: MP, Bhopal for

the analysis from third party NABL accredited or other accredited labs.

118

IX.12: Details of intersected Mineralized zones of the boreholes drilled and their

correlation.

Chakariya Block having a length of about 705 metres was taken up for exploration during FS

2016-17. A total of 07 boreholes with 855 metres were drilled. The inclined boreholes with

50° angle were planned to intersect the mineralised zones. Two boreholes of 50m vertical

intersection were planned in between GCD-04 & GCD-01 and GCD-05 & GCD-03 to

confirm trench values and also to check the strike continuity of mineralized zones intersected

in GCD-01 and GCD-05. The distance between CBH01 and CBH02 which are 1st level

borehole of 50m vertical intersection are 200mts apart from each other.

Details of mineralized zones (based on visual estimation) have been given in Table-XXXII,

Table-XXXIII, Table-XXXIV, Table-XXXV, Table-XXXVI, Table-XXXVII and Table-

XXXVIII.

The mineralisation observed in drillholes (from CBH-01 to CBH-07) is described as

following:

Drillhole No. CBH-01:

This drillhole was planned 50 west GCD-01 to confirm trench values and also to check the

strike continuity of mineralized zones intersected in GCD-01. The BRS samples had recorded

higher values of gold in scorodite.

119

Table-XXXII: Details of intersected Mineralized zones of the borehole CBH-01

RL at

collar

Depth along

Borehole

True

width

(m)

Lithology Description

374.743 From To

34.9 35.2 0.30 Arenite +QVG +Arsenopyrite

36.95 37.55 0.60

Phyllite+ QVG

+Arsenopyrite++Scorodite+Chalcopyrite+Pyrrhoti

te+Arenite

53 53.25 0.25 Arenaceous Phyllite+Chalcopyrite+Arsenopyrite

77.02 77.87 0.85 Arsenopyrite+Scorodite+Chalcopyrite

+Arenaceous Phyllite

77.97 78.57

0.60 Arsenopyrite+Scorodite+ Chalcopyrite

+Arenaceous Phyllite

84.87 85.12 0.25 QVG+ Phyllite +Arsenopyrite

85.49 85.74 0.25 Arenaceous Phyllite +Arsenopyrite +Phyllite

87.5 87.75 0.25 QVG+ Phyllite +Arsenopyrite

88.95 89.25 0.30 QVG+ Phyllite+ Arsenopyrite+ Chalcopyrite



Drillhole No. CBH-2: This drillhole was planned 47m S23°W of GCD-01 to confirm

trench values and also to check the 2nd

level continuity of mineralized zones

intersected in GCD-01.

Table-XXXIII: Details of intersected Mineralized zones of the borehole CBH-02

RL at

collar

Depth along

Borehole

True

width

(m)


384.279m.

From To

44.38 44.63 0.25

Phyllite + QVG + Scorodite + Arsenopyrite +

Chalcopyrite

46.55 46.8 0.25 Phyllite +QVG+ Scorodite

47.2 47.5 0.30

Arenaceous Phyllite + QVG + Scorodite

+ Chalcopyrite + Arsenopyrite

48.65 48.9 0.25 Phyllite + QVG + Scorodite

49.88 50.13 0.25

Arenaceous Phyllite+

Phyllite+Chalcopyrite+Arsenopyrite

60.8 61.4 0.60

Arenaceous Phyllite + Phyllite + QVG

+ Chalcopyrite +Arsenopyrite

+Scorodite

61.5 61.8 0.30

Arenaceous Phyllite, + QVG + Chalcopyrite +

Arsenopyrite

63.35 65.15 1.50

Phyllite + QVG + Scorodite

+Arsenopyrite+Chalcopyrite

120

66.05 66.65 0.60

Phyllite + QVG + Scorodite

+Arsenopyrite

67.05 67.65 0.60

Arenite + QVG + Scorodite

+Chalcopyrite

68.6 69.1 0.50

QVM + Chalcopyrite

+Arsenopyrite

69.9 70.15 0.25

Arenite + Chalcopyrite

+ Arsenopyrite

70.95 71.45 0.50

QVM + Chalcopyrite

+Arsenopyrite+Pyrite

84.5 84.75 0.25 Phyllite+QVG

105.8

5 106.1 0.25


+Chalcopyrite

108.2 108.45 0.25


+Chalcopyrite

113.1

5 113.75 0.60


Arsenopyrite

113.9

5 114.2 0.25


Arsenopyrite

114.5 114.75 0.25


Arsenopyrite

131.2 131.5 0.30

Arenite + Scorodite + Arsenopyrite + QVM +

Chalcopyrite + QVM

147.8 148.8 1.00

Arenaceous Phyllite + Arsenopyrite + QVM +

Scorodite

148.8

5 149.05 0.25

Arenaceous Phyllite + QVM + Arsenopyrite+

Scorodite


This drillhole was planned 98m S23°W of GCD-05 to confirm trench values and also to

check the 2nd

level continuity of mineralized zones intersected in GCD-05.

Table-XXXIV: Details of intersected Mineralized zones of the borehole CBH-03

RL at

collar

Depth along

Borehole

True

width

(m)


376.205

From To

28.45 28.7 0.25 Phyllite+QVG+Scorodite

42.25 42.55 0.30 Phyllite+QVM

48.95 49.55 0.60 Phyllite+QVM

52.45 52.7 0.25 Phyllite+QVM




78.3 78.6 0.30 Arenite+QVG+Scorodite+arsenopyrite

79.6 79.85 0.25 Arenite+QVG+Scorodite+arsenopyrite

121

82.3 82.55 0.25 Arenite+Pyrite+Arsenopyrite


100.55 100.85 0.30 Phyllite+QVG+Scorodite+Arsenopyrite+Pyrite

Drillhole No. CBH-4: This drillhole was planned 50m East of GCD-05 to confirm trench

values and also to check strike continuity of mineralized zones intersected in GCD-05.

Table-XXXV: Details of intersected Mineralized zones of the borehole CBH-04

RL at

collar

Depth along

Borehole

True

width (m) Lithology Description

393.388

From To

36.5 36.75 25 QVG+Scorodite

40.75 41 25 QVG+Scorodite


57.35 57.85 50 QVG+QVM


122



check the 2nd


Table-XXVI: Details of intersected mineralized zones of the borehole CBH-05

RL at

collar

Depth along

Borehole

True

width (m) Lithology Description

370.22

From To

26 26.25 25 Phyllite+QVG

26.5 27 50 Phyllite+QVG

27.25 27.75 50 Phyllite+QVG



32.1 32.6 50 QVG

47.75 48.25 50 QVG+Scorodite+Arenaceous Phyllite

86.65 86.95 30 QVG

89.5 90 50 QVG

92.6 93.1 50 Arenaceous Phyllite+Arsenopyrite

93.7 94.2 50 QVG+Arsenopyrite+Arenaceous Phyllite

112.3 113.30 1.00 QVG+Arenaceous phyllite

127 127.5 50 QVG+Arenaceous phyllite

127.7 127.95 25 QVG+Arenaceous phyllite



check the 2nd


Table-XXVII: Details of intersected mineralized zones of the borehole CBH-06

RL at collar Depth along

Borehole

True

width

(m)


365.419

From To

31.1 31.6 50 QVM+Arsenopyrite

35.9 36.65 0.75

Arenaceous Phyllite + QVG + Arsenopyrite +

Scorodite

36.8 37.3 50

Arenaceous Phyllite + QVG + Arsenopyrite +

Scorodite

38.5 38.75 25 Arenaceous Phyllite + QVG

48 48.25 25 QVM

54.25 54.5 25 QVM + Arenaceous Phyllite + Arsenopyrite

55.4 55.65 25 QVM + Arsenopyrite

66.85 67.45 50 QVG + Scorodite + Arenite

123

80.25 81.75 1.50 Arenite + Arenaceous Phyllite + Chalcopyrite

81.75 82 25 Arenite + Arenaceous Phyllite + Chalcopyrite

89.75 90.05 30 Phyllite + QV intrusion


This drillhole was planned 50m S23°Wof GCD-07 to confirm trench values and also to check

the 2nd


Table-XXXVIII: Details of intersected Mineralized zones of the borehole CBH-07

RL at

collar

Depth along

Borehole

True

width

(m)


374.743

From To

53.4 53.65 25 Phyllite+Arsenopyrite

61.25 61.55 30

Greenish Phyllite + Arsenopyrite + QVW +

Chalcopyrite


93 93.25 25 Phyllite+Arsenopyrite


124

X. ORE BENEFICIATION STUDIES: BENEFICIATION STUDY REQUIRES

MINIMUM 250KG OF SAMPLE WHICH CAN BE PREPARED FROM THE

REMAINING POWDERED SAMPLES OF MINERALIZED ZONES AFTER

SUBMISSION OF SAMPLES FOR CHEMICAL ANALYSIS.

The mineralized zone has been marked during the preparation of core samples. The 1/4th

part

of the core samples has been prepared as chips samples of (atleast 1 inch) after the remaining

powdered samples of mineralized zone (i.e 1/2th

Part) and core samples for repository (1/3th

part) samples have been submitted to Indian Bureau of Mines, mineral processing unit,

Hingna Road Nagpur for the ore beneficiation studies.

125

XI. GEOTECHNICAL STUDIES ON BOREHOLE CORE SAMPLES OF

MINERALIZED ZONE HANGING WALL AND FOOTWALL SIDE.

1. Porosity

2. Moisture content, water absorption

3. Bulk density

Tonnage factor or Bulk density is a multiplier to the volume for determination of ore.

Bulk density is determined for large volume in which opening of rocks ( joints

fracture, brecciation,) are included.

Determination of bulk density using drill core:

Volume= ½ x π r2l, Sp. Gravity = W/V= Bulk Density

W= Weight of Sample.

Result: Bulk density < Actual Density

4. Uniaxial Compressive strength

5. Uniaxial Tensile Strength

6. Triaxial Strength

7. Young‟s Modulus

8. Poission Ratio

9.RQD (Rock Quality Designation Study): RQD is an improved method of logging rock

core to calculate a modified core recovery percentage. It is measurement of the percentage

of “good” rock in the rock core run (intact pieces 10cm or more in length). RQD did not

replace the traditional core recovery percentage; both have been reported for each core

run. RQD% = (Length of Core pieces greater or equal than 10cm / Total length (m) Core

run) X 100. The minimum standards for RQD are have been accounted during the logging.

HQ size core, Drilled with double-tube core barrel, Count only pieces of core that are

greater or equal to 10cm

Figure XXVIII: Diagram illustrating RQD calculation (after D.U. Deere and D.W. Deere).

126

The details of RQD are annexed below.

Table-XXXIX: Details of RQD observed from Borehole No. CBH-01

Run

Length

0.00-

2.00

2.00-

5.00

5.00-

8.00

8.00-

11.00

11.00-

14.00

14.00-

17.00

17.00-

20.00

20.00-

23.00

23.00-

26.00

26.00-

29.00

29.00-

32.00

RQD

in %

50% ,

150cm

57% ,

170cm

66% ,

197cm

86.66% ,

260cm

55% ,

166cm

76% ,

230cm

70% ,

212cm

55% ,

165cm

Run

Length

35.00-

38.00

38.00-

41.00

41.00-

44.00

44.00-

47.00

47.00-

50.00

50.00-

53.00 53.00-56.00

56.00-

59.00

59.00-

62.00

62.00-

65.00

65.00-

68.00

RQD

in %

66% ,

198cm

81% ,

243cm

75% ,

224cm

74% ,

223cm

88% ,

264cm

91% ,

273cm

90% ,

271cm

76% ,

229cm

62% ,

188cm

80% ,

240cm

78% ,

234cm

Run

Length

68.00-

71.00

71.00-

74.00

74.00-

77.00

77.00-

80.00

80.00-

83.00

83.00-

86.00

86.00-

89.00

89.00-

90.00

RQD

in %

92% ,

276cm

71% ,

213cm

92% ,

277cm

88% ,

265cm

RQD=52%

, 156cm 65% 63% 70%

Table-XL: Details of RQD observed from Borehole No. CBH-02

Run

Length

0.00-

2.00

2.00-

5.00

5.00-

8.00

8.00-

11.00

11.00-

14.00

14.00-

17.00

17.00-

20.00

20.00-

23.00

23.00-

26.00

26.00-

29.00

29.00-

32.00

RQD in % 37% ,

112 cm

24% ,

71 cm

08% ,

23cm

15% ,

45cm

15% ,

45cm

0 69% ,

206cm

55% ,

165cm

Run

Length

32.00-

35.00

35.00-

38.00

38.00-

41.00

41.00-

44.00

44.00-

47.00

47.00-

50.00

50.00-

53.00

53.00-

56.00

56.00-

59.00

59.00-

62.00

62.00-

65.00

RQD in % 37% ,

110cm

44% ,

132cm

29% ,

88cm

46% ,

140cm

46% ,

140cm

80% ,

242cm

76% ,

228cm

76% ,

228cm

60% ,

180cm

69% ,

207cm

69.6% ,

209cm

Run

Length

65.00-

68.00

68.00-

71.00

71.00-

74.00

74.00-

77.00

77.00-

80.00

80.00-

83.00

83.00-

86.00

86.00-

89.00

89.00-

92.00

92.00-

95.00

95.00-

98.00

RQD in % 82% ,

246cm

53% ,

160cm

53% ,

293cm

73% ,

220cm

73% ,

220cm

57% ,

162cm

51% ,

152cm

77% ,

231cm

76% ,

228cm

69% ,

208cm

63% ,

190cm

Run

Length

98.00-

101.00

101.00-

104.00

104.00-

107.00

107.00-

110.00

110.00-

113.00

113.00-

116.00

116.00-

119.00

119.00-

122.00

122.00-

125.00

125.00-

128.00

128.00-

131.00

127

RQD in % 63% ,

190cm

73% ,

219cm

94% ,

283cm

80% ,

240cm

83% ,

251cm

81.6% ,

245cm

86.6% ,

260cm

78% ,

234cm

92% ,

276cm

80% ,

241cm

96% ,

289cm

Run

Length

131.00-

134.00

134.00-

137

137.00-

140.00

140.00-

143.00

143.00-

146.00

146.00-

149.00

149.00-

150

RQD in % 80.6% ,

242cm

83% ,

250cm

79% ,

238cm

86% ,

258cm

71.6% ,

215cm

89.6% ,

269cm

89.6% ,

269cm

Table-XLI: Details of RQD observed from Borehole No. CBH-03

Run

Length

00.00-

2.00

2.00-

5.00

5.00-

8.00

08.00-

11.00

11.00-

14.00

14.00-

17.00

17.00-

20.00

20.00-

23.00 23.00-26.00 26.00-29.00 29.00-32.00

RQD in

% ---- -----

99cm,

33%

158cm,

53%

220cm,

73%

165cm,

55%

198cm,

93%

175cm,

58% 147cm,49% 220cm,73.3%

248cm,82.6

%

Run

Lengt

h

Run

32.00-

35.00

35.00-

38.00

38.00-

41.00

41.00

-44.00

44.00-

47.00

47.00-

50.00 50.00-53.00

53.00-

56.00

56.00-

59.00

59.00-

62.00

62.00-

65.00

RQD

in %

Lengt

h

200cm

,

66.6%

237cm

,

79%

252cm

,

84%

266cm

,

88.6%

229cm,

76%

289cm,

96%

286cm,

95%

259cm,

86%

240cm,

80%

252cm,

84%

213cm

,

71%

Run

Lengt

h

65.00-

68.00

68.00-

71.00

71.00-

74.00

74.00-

77.00

77.00-

80.00

80.00-

83.00

83.00-

86.00

86.00-

89.00

89.00-

92.00

92.00-

95.00

RQD

in %

206cm,69

%

291cm,97

%

270cm,90

%

250cm,83

%

251cm,84

%

238cm,79

%

242cm,81

%

256cm,85

%

271cm,90

%

268cm,89

%

Run

Length 95.00-98.00

98.00-

101.00

101.00-

104.00

107.00-

110.00

110.00-

113.00

113.00-

116.00

116.00-

119.00

119.00-

122.00

122.00-

125.00

RQD

in % 272cm,91% 246cm,82% 146cm,48% 185cm,61.6% 242cm,61.6% 282cm,94% 260cm,87% 245cm,82% 236cm,79%

128

Run Length 125.00-128.00 128.00-131.00 131.00-134.00 134.00-137.00 137.00-140.00 140.00-142.00

RQD in % 260cm,87% 235cm,87% 203cm,68% 276cm,92% 230cm,77% 132cm,66%

Table-XLII: Details of RQD observed from Borehole No. CBH-04

Run

Length

00.00-

2.00

2.00-

5.00

5.00-

8.00

8.00-

11.00 11.00-14.00 14.00-17.00 17.00-20.00 20.00-23.00

23.00-

26.00

RQD in

% ---- ---- ---- ---- 25% , 75 mts 24% , 72 cm 26% , 78 cm 08% , 25cm

Run

Length

26.00-

29.00

29.00-

32.00

32.00-

35.00

35.00-

38.00

38.00-

41.00

41.00-

44.00

44.00-

47.00

47.00-

50.00

50.00-

53.00

53.00-

56.00

56.00-

59.00

RQD in

%

19% ,

58cm

79% ,

236cm

62% ,

185cm

63% ,

190cm

77% ,

232cm

70% ,

210cm

90% ,

27cm

92% ,

277cm

87% ,

260cm

74% ,

221cm

83% ,

250cm

Run Length 59.00-62.00 62.00-65.00 68.00-71.00 71.00-74.00 74.00-77.00 77.00-80.00

RQD in % 76% , 258cm 90% , 270cm 81% , 243cm 72% , 217cm 62% , 187cm 72% , 216cm

129

Table-XLIII: Details of RQD observed from Borehole No. CBH-05

Run

Length 00.00-

2.00

2.00-

5.00

5.00-

8.00 8.00-11.00

11.00-

14.00

14.00-

17.00

17.00-

20.00

20.00-

23.00

23.00-

26.00

26.00-

29.00

29.00-

32.00

RQD

in % ---- ---- ---- ----

138cm,

46%

140cm,

46%

166cm,

55%

199cm,

66.3%

173cm,

57.7%

106cm,

35.3% 70cm, 23%

Run

Length 32.00-

35.00

35.00-

38.00

38.00-

41.00

41.00-

44.00

44.00-

47.00

47.00-

50.00

50.00-

53.00

53.00-

56.00

56.00-

59.00

59.00-

62.00

62.00-

65.00

RQD

in % 119cm,

39.6%

92cm,

30.6%

130cm,

43%

200cm,

66%

200cm,

66%

222cm,

74%

213cm,

74%

120cm,

40%

207cm,

69%

275cm,

91.6%

209cm,

69%

Run

Length 65.00-

68.00

68.00-

71.00

71.00-

74.00

74.00-

77.00

77.00-

80.00

80.00-

83.00

83.00-

86.00

86.00-

89.00

89.00-

92.00

92.00-

95.00

95.00-

98.00

RQD in

% 260cm,

86%

207cm,

69%

273cm,

91%

254cm,

84%

162cm,

54%

201cm,

67%

207cm,

69%

267cm,

89%

240cm,

80%

297cm,

66%

246cm,

82%

Run

Length 98.00-

101.00

101.00-

104.00

104.00-

107.00

107.00-

110.00

110.00-

113.00

113.00-

116.00

116.00-

119.00

119.00-

122.00

122.00-

125.00

125.00-

128.00

128.00-

130.00

RQD in

% 257cm,

86%

255cm,

85%

168cm,

56%

221cm,

73%

173cm,

57%

206cm,

67%

209cm,

66%

164cm,

55%

228cm,

76%

177cm,

59%

122cm,

61%

130

Table-XLIV: Details of RQD observed from Borehole No. CBH-06

Run

Length 00.00-

2.00

2.00-

5.00

5.00-

8.00

8.00-

11.00

11.00-

14.00

14.00-

17.00

17.00-

20.00 20.00-23.00

23.00-

26.00

26.00-

29.00

29.00-

32.00

RQD in

% ---- --- ---- ---- ----- ----- 60cm,

125cm,41.6

% ----

105cm,35

%

140cm,46

%

Run

Length 32.00-

35.00

35.00-

38.00

38.00-

41.00

41.00-

44.00

44.00-

47.00

47.00-

50.00

50.00-

53.00

53.00-

56.00

56.00-

59.00

59.00-

62.00

62.00-

65.00

RQD in

% 140cm,46

%

100cm,33

%

189cm,63

%

166cm,55

%

137cm,45

%

159cm,53

%

204cm,68

%

220cm,73

%

184cm,65

%

176cm,59

%

188cm,62

%

Run

Length 65.00-

68.00

68.00-

71.00

71.00-

74.00

74.00-

77.00

77.00-

80.00

80.00-

83.00

83.00-

86.00

86.00-

89.00

89.00-

92.00

92.00-

95.00

95.00-

98.00

RQD in

% 245cm,81

%

203cm,67

%

176cm,58

%

268cm,

89%

210cm,

70%

145cm,

48%

207cm,

69%

241cm,

80%

170cm,

56%

258cm,

86%

265cm,

88%

Run Length 98.00-

101.00

101.00-

104.00

104.00-

107.00

107.00-

110.00

110.00-

113.00

113.00-

116.00

116.00-

119.00

119.00-

122.00

122.00-

123.00

RQD in % 257cm,

86%

267cm,

89%

292cm,

97%

294cm,

98%

263cm,

87%

219cm,

73%

241cm,

80%

260cm,

86%

78cm,

78%

131

Table-XLV: Details of RQD observed from Borehole No. CBH-07

Run

Length

00.00-

2.00

2.00-

5.00 5.00-8.00

8.00-

11.00 11.00-14.00

14.00-

17.00

17.00-

20.00

20.00-

23.00

23.00-

26.00

26.00-

29.00

35.00-

38.00

RQD in

% ---- ---- CR=42cm,% ----- 15cm, %

37cm,

%

58cm,

%

13cm,

%

104cm,

%

162cm,54

%

112cm,37

%

Run

Length

38.00-

41.00

41.00-

44.00

44.00-

47.00

47.00-

50.00

50.00-

53.00

53.00-

56.00

56.00-

59.00

59.00-

62.00

62.00-

65.00

65.00-

68.00

65.00-

71.00

RQD in

%

30cm,10

%

64cm,21

%

229cm,76.3

%

144cm,48

%

175cm,58.3

%

233cm,77

%

262cm,87

%

186cm,62

%

230cm,76

%

197cm,66

%

234cm,78

%

Run

Length

71.00-

74.00

74.00-

77.00

77.00-

80.00

80.00-

83.00

83.00-

86.00

86.00-

89.00

89.00-

92.00

92.00-

95.00

95.00-

98.00

98.00-

101.00

101.00-

104.00

RQD in

%

179cm,79

%

183cm,61

%

236cm,78

%

274cm,91

%

213cm,71

%

240cm,80

%

245cm,81

%

224cm,74

%

110cm,37

%

259cm,86.3

%

221cm,58

%

Run

Length

104.00-

107.00

107.00-

110.00

110.00-

113.00

113.00-

116.00

116.00-

119.00

119.00-

122.00

122.00-

125.00

125.00-

128.00

128.00-

131.00

131.00-

134.00

134.00-

137.00

137.00-

140.00

RQD

in %

209cm,70

%

76cm,25

%

144cm,48

%

175cm,58

%

186cm,62

%

101cm,33

%

141cm,47

%

81cm,27

%

98cm,33

%

85cm,33

%

132

XII. RESOURCE ESTIMATION:

XII.01: Introduction.

The main aim of the geological survey is to size up rock, minerals, etc. This sizing up of the

ore body is known as resource estimation, which tells about the quantity, quality and

amenability to commercial exploration of raw material. Resource estimation is a very

important phase in development of a mine, after all prospecting and exploration need

estimation of ore. So as to calculate economic viability of the resource a precise and accurate

estimate of resource is needed to make future plans. A total of 198350 tonnes of ore with an

average grade of 1.20g/t with average width of 1.26 metres has been estimated for both trench and

drillholes (Jha et al 1999-2001). As current works is based on augmentation of ore reserve, a

part of Chakariya block is utilised here for drilling with close intervals and resource

estimation. LV section and cross sections for resource estimation has been prepared and

resource estimation is done based on chemical data of core samples.

XII.02: Detailed Description of Mineralized zones

Depth of intersection of ore horizon is given in Table-XXXII, Table-XXXIII, Table-XXXIV,

Table-XXXV, Table-XXXVI, Table-XXXVII and Table-XXXVIII.

XII.03: Core Recovery

Core-Recovery is an important factor in computation of ore reserves, there the core recovery

should be very high at least in mineralized zone. Core recovery has been measured length

wise. The detailed core recovery is shown in Table-XVII, Table-XVIII, Table-XIX, Table-

XX, Table-XXI, Table-XXII and Table-XXIII.

Core Recovery= (Lr/L) x100

Lr= Recovered Core

L=Run length.

In Chakariya the core recovery is more than 95% there reserve calculation purposes it has

been considered 100%. However it totally depends upon the nature of deposits and its

occurrence. If the core recovery is less than 95% the correction factor have to be applied

during the calculation of thickness of lode.

Mainly there are three options.

Dilution method: the Assay value of recovered core is distributed in the whole run assuming

that the part of core which is not recovered is barren.

133

Usually the grade goes down in this method.

Gr= A*x L1/L, where Gr= Grade, A= Assay value of sample.

Reduction width method: In this case the core loss is considered as voids and lode width is

taken as the length of the core recovered, thus the thickness may be reduced but grade

remains as per assay values.

Equal grade Method: This method is adopted where the core recovery is more than 90% and

less than 95%. In this method the grade of recovered length is taken as grade of run with the

assumption that the uncovered portion also contains the same assay value.

XII.04: Cut off Grade consideration

Cut off are of two types.

1. Threshold cut-off: it is the cut off that is fixed by Indian Bureau of Mines.

i.e. the Grade below which we cannot mine the ore economically

Ct= Pcx100/Vm, Ct= Cut off Grade, Pc= Production cost, Vm= Value of mineral deposit.

2. Operational Cut off: The operational cutoff are the values which is determined by Geologist,

Statistically the cut off grade of deposits will be determined by preparing histogram of all

analyzed samples because the result of (MZ) or samples are different therefore we average or

calculate one operational cut off.

3. The cut off grade used for marking gold mineralized zones in Chakariya block is 0.5 ppm.

XII.05: Minimum stoping width consideration

The minimum stoping width of orebody to be dug out, this is usually 2.0m for underground

mining method. For delineating mineralized zones in Chakariya block the consideration of

minimum stoping width has been ignored.

XII.06: Correlation of ore lodes.

The mineralization in Chakariya block exhibits vein system. It may have come along with

quartz vein by secondary mobilization, therefore the mineralized zones are not continuous.

The mineralization is exposed at different level in different boreholes. Cross section has been

prepared and the correlation of mineralized zone are shown in Plate-III

XII.07: Description of Lodes.

Details of expected mineralized zones has been given in Table-XXXII, Table-XXXIII, Table-

XXXIV, Table-XXXV, Table-XXXVI, Table-XXXVIII, Table-XXXVIII

XII.08: Preparation of LV section

LV section for Chakariya block is prepared and shown in Plate-IV.

134

XII.09: Assumptions of resource estimation

Mineralized zones in bore holes are intersected at different levels (two borehole of 50m

vertical intersection and five boreholes of 2nd

level of 100m vertical intersection) therefore

few assumptions have been established for the resource estimation.

1. Cumulative of all mineralized zones in a borehole has been considered instead of

apparent thickness of each mineralized zones in a borehole.

2. Cumulative horizontal width has been considered for each borehole.

3. Average angle of lode with core axis was considered for each borehole.

4. Area of influence of drillhole intersections: The area of influence of every mineralised

zone intersection in drillhole has been assumed to extend half way i.e. 50 metres in the

direction of adjacent drillhole laterally in 2nd

level of borehole and 25 meters for 1st level

of boreholes. In case of drillholes, the influence has been taken 25 metres for 1st level of

bore holes and for 2nd

levels of boreholes half the distance between (1st and 2

nd levels)

boreholes, both upward and downward from intersection to calculate cross sectional area.

Strike length of mineralized zones has been considered on borehole spacing. Dip length

for level-I boreholes is half of the vertical depth of intersection on both side of

mineralized zones (Jha et.al 1999-2001), whereas dip length for level-2 boreholes has

been determined considering the length of mineralized zone intersected between Level-1

and Level-2 boreholes. Horizontal width has been determined taking into consideration,

the length of horizontal intersection of mineralized zones in borehole.

5. Core Recovery: In most of mineralised zones, the core recovery is above 95%

therefore it has been assumed 100%.

6. Continuation of lodes between drillholes: Mineralized zones intersected in adjacent

drillholes have been assumed to be continuous, though it may introduce certain degree of

uncertainty in the resource estimation.

7. Resource estimation has been carried out based on visual estimation of mineralized

zones as observed during the core logging. It is tentative and subjected to change after the

receival of geochemical analytical results of core and trench samples. Each borehole

comprises many mineralized veinlets therefore for the purpose of resource estimation,

calculations has done using cumulative thickness of various mineralized veinlets.

135

8. One of the factors used in volumetric calculation LV section is “difference is RL”

which is formed using horizontal projection of dip length influence of each mineralized

zone.

XII.11: Methodology of ore resource estimation

XII.11.1: Cross-sectional Method

The cross-section or Traverse section method prepared across the orebody represent the

actual geologic feature in shape and quality. The preparation of cross-section is same as

preparation of Geological cross-section of body. For the calculation of reserve by this method

the area of influence and quality is considered on the basis of rule of nearest points.

Tonnage = True measured thickness (cumulative of all veins in a borehole) x dip length x

strike length x sp. Gravity.

136

Table-XLVI: Resource estimation sheet by cross-section methods for Gold

B.H

No

Cumm.

Thickness

Of all

mineraliz

ed zones

in a

borehole

Angle

Of lode

With

Core axis

(average)

True

Thick

Ness

Mea

Sured.

True

Thic

Ness

Calcula

Ted

Hori

Width

(m)

(cumulativ

e)

Core

Rec

%

Au%

( wt.

avg.)

Dip

length

Strike

Length

Tonna

Ge

Factor

(kg/ m3)

Volume= True width

measured x Dip length

x strike length

(m)

CBH01 1.65 50 1.25 1.26 1.30 100 3.2

ppm

50 50 2500 3150

CBH02 0.55 46 0.40 0.42 0.43 100 1.50

ppm

40 100 2500 1680

CBH03 0.75 50 0.60 0.61 0.63 100 1.15

ppm

89 100 2500 5429

CBH04 0.25 51 0.20 0.22 0.23 100 1.41

ppm

50 50 2500 550

∑ Volume =10809 m3

(Cumulative of all boreholes)

∑ Tonnage (volume x tonnage factor) = 27023 tonnes (Cumulative of all boreholes)

A total of 27023 tonnes of ore with an average grade of 1.81 g/t has been estimated for drillholes from cross section method.

137

XII.11.2: Longitudinal vertical projected section Method (L-V Section Method)

This method is very helpful in co-relating the ore body along the strike which is very

important factor. This method is used for complex ore body. In LVS method the RL of the

intersection of orebody has been projected on vertical plane parallel to the strike of the ore

body and lodes have been co-related. The area determined by the LVS has been multiplied by

the horizontal thickness of the ore body to know the thickness of ore body.

i.e Tonnage= Horizontal width (cumulative of all veins in a borehole) x Strike length x Dip

RL difference ( i.e. Difference of higher RL – Lower RL).

.

138

Table-XLVII: Resource estimation sheet by LV section methods for Gold

B.H

No

Cumm.

Thickne

ss

Of all

minerali

zed

zones in

a

borehole

Angle

Of lode

With

Core

axis

(averag

e)

True

Thic

k

Ness

Mea

Sure

d.

True

Thic

Ness

Calcula

Ted

Hori

Width

(m)

(cumulati

ve)

Core

Rec

%

Au

%

Dip

length

Dip

RLdiffe

rence

avg. (

m)

Strike

Length

Tonna

Ge

Factor

Volume= strike

length x

horizontal width

x Dip RL

difference

Lengt

h

(m)

CBH01 1.65 50 1.25 1.26 1.30 100 3.2

ppm

50 44 50 2500 2860

CBH02 0.55 46 0.40 0.42 0.43 100 1.50

ppm

40 35 100 2500 1505

CBH03 0.75 50 0.60 0.61 0.63 100 1.15

ppm

89 77 100 2500 4851

CBH04 0.25 51 0.20 0.22 0.23 100 1.41

ppm

50 45 50 2500 518

∑ Volume =9734 m3 (Cumulative of all boreholes)

∑ Tonnage (volume x tonnage factor) = 24334 tonnes (Cumulative of all boreholes)

A total of 24334 tonnes of ore with an average grade of 1.81 g/t has been estimated for drillholes from LV section method.

139

Table-XLVIII: Cummulative Resource Estimation for Gold for boreholes drilled during FS 1999-2001 and FS 2016-17 at Chakariya Block

Drillholes Cumulative True

Width (metres)

Strike Length

(metres)

Dip influence

(metres) Volume (m³)

Tonnage

Factor (g/cc) Tonnage (tonnes)

GCD-1 3.7 75 40 11100 2.5 27750

GCD-2 0.53 100 60 3180 2.5 7950

GCD-5 3.6 75 80 21600 2.5 54000

GCD-6 1.75 100 39 6825 2.5 17062.5

GCD-7 0.39 100 41 1599 2.5 3997.5

CBH 01 1.26 50 50 3150 2.5 7875

CBH02 0.42 100 40 1680 2.5 4200

CBH03 0.61 100 89 5429 2.5 13572.5

CBH04 0.22 50 50 550 2.5 1375

Total Volume (Cumulative) 55113

Total Tonnage (Cumulative) 137782.5

The cummulative calculation for the resources for the borehole drilled during FS 1999-2001 and FS 2016-17.

Operational cut off grade for the calculation of resources is 0.5ppm.

The mineralized zones in which gold value above cutoff grade observed have been marked with gold value in front of corresponding

zones in annexures.

Average grade of borehole drilled during FS 1999-2001 and FS 2016-17 for Gold is 1.32 g/t.

140

XII.12: Category of resource/Reserve as per UNFC classification

Only the geological axis (G) is defined here by present authors as no study has been carried

out for feasibility (F) and economic axis (E). As per geological axis this resource falls under

G-2 category. (See chapter 9, subheading 1 for mineral content rule as per UNFC.) Resource

of Chakariya Block as per UNFC classification for Au falls in Indicated Mineral Resource

(332)

141

XIII.: RECOMMENDATION:

The analytical result of Bed rock samples collected during FS 2016-17 has shown

encouraging values, it is therefore recommended G-4 level investigation programme in the

extension of the Chakariya Block.

142

XIV: CONCLUSION:

The investigated area belongs to Dudhmania Formation of Mahakoshal Group of rocks,

which comprises greenish phyllite, arenaceous phyllite, tuffaceous phyllite and mixed oxide-

silicate facies (BIF).

A total of 100 nos. core samples, 50 nos. BRS, 10 nos. EPMA, 10 nos. of SEM (EDX), PS.

20 nos. and 10 PCS samples were collected and sent to geochemical laboratories for analysis.

A total of 50 cu.m of trenching has been carried out to know the surficial continuity of the

mineralized zones. The trenches were cut across the mineralised zones. A total of 50nos of

pitting and trenching (PTS) samples were also prepared and submitted for geochemical

analysis. Regional traverses were carried out to understand structure as well as regional

geological setup of area. Core Logging along with geophysical logging of each boreholes

were done. 5 nos. of water samples were also collected and sent for chemical analysis.

Differential Global Positioning System (DGPS) survey was carried out and demarcated

borehole points along with block boundary.

Drilling in Chakariya block was started on 03.03.2017 and completed on 24.04.2017. A total

of 855 m of drilling were carried out by drilling of seven (07) nos. boreholes. Two boreholes

of 50m vertical interval have been planned in between GCD04 & GCD01 and GCD05 &

GCD03 to confirm the trench values and also to check the strike continuity of mineralized

zone. The second boreholes of 100m vertical intersection has been planned for GCD-01, 05,

06, 07 and 08 to examine the depth continuity of mineralized zone intersected in first level

(50m).

Predominantly there are three varieties of quartz veins in the block viz. Grey to black

coloured quartz veins (QVG), White coloured quartz veins (QVW) and mixed grey to white

quartz veins (QVM). The QVW veins are comparatively thicker (up to 6m) while QVG and

QVM have 25cmto 50cm and occur as irregular and discontinuous bands mainly within

phyllites and rarely in BIFs. The vein type gold mineralisation appears to have been formed

during the deformation and low-grade metamorphism. Quartz vein are co-axial with the

phyllite though at places it cuts across the phyllite. Among various quartz veins sampled, one

sample from Chakariya block has reported Au value of 8.8 ppm. This confirms that Chakariya

prospect has epigenetic auriferous quartz veins.

White quartz veins/Grey quartz veins/Mixed quartz veins are intruded into phyllite along S1

foliation planes. These quartz veins are containing specks and stringers of sphalerite, pyrite,

chalcopyrite, arsenopyrite and some mineralization occur in the form of vug filling. The

143

emplacement of quartz veins along the foliation planes and its further fracturing and folding

at places is suggestive of structural control on the occurrence of mineralization. Arsenopyrite

(including its altered form scorodite), pyrite, chalcopyrite and galena are the principal

sulphide minerals observed in the mineralized zones in the surface and in drill cores.

The planar parallel and continuous geometry of bed and laminations in phyllite indicates

stable depositional conditions. This type of geometries is typical of distal turbidite

successions.

Two main events of deformation have been noticed which are responsible for the regional

WNW-ESE trend of the Mahakoshal rocks and the third deformation is mild in intensity and

developed at high angle to the first two deformations.

Gold bearing quartz veins are parallel and across to metapelites (Phyllite) indicating

epigenetic style of mineralization.

The concentration of Gold in 07 bed rock samples is ranging from 2.06 ppm to 9.16 ppm

mostly from the samples of scorodite. Specks of arsenopyrite were observed during the

course of sampling, therefore it can be inferred that Gold and Arsenic bearing minerals

(Arsenopyrite+Scorodite) correlate positively, and may have played an important role in the

concentration of Au in hydrothermal system.

Petrochemical analysis has been carried out by pressed pellet method. High values of barium

2408mg/kg has been observed in one sample of phyllite. Anomalous value of barium may

have come as substitution for potassium in alkali feldspar present in phyllite. Analytical

results of scorodite band samples shows less amount of SiO2 and relatively high Fe2O3

content as its common hydrated iron arsenate mineral. The weight ratios of SiO2/Al2O3

against (Na2O+CaO)/K2O show positive correlation and suggest the greywacke and

argillaceous source for the deposition of rocks of Dudhmania formation.

Dudhmania Formation of Mahakoshal Group of sediments can be classified as arkose and

lithic arenite. The high content of Na2O and K2O appears to be due to the predominance of

albite and K-feldspars in the sediments. Metasedimentary samples under study are classified

as quartz rich with K2O/Na2O>1. The quartz rich samples suggest the passive margin settings

of their deposition

Most mineralized core samples looks to be blebs and stringers of arsenopyrite, pyrite and

chalcopyrite. Mineralization as vug filling is also seen in core samples.

The sulphide minerals comprise arsenopyrite, galena, pyrite and chalcopyrite as primary

sulphides and scorodite as weathering product of arsenopyrite.

144

Scorodite is manifested on the surface in the form of discontinuous bands trending WNW-

ESE and was observed at many places including NE of borehole GCD-07, in trench CT-9,

north of boreholes GCD-01 and GCD-04.

The water of Chakariya Block is more or less neutral in nature with pH ranging from 6.70 to

7.44. The TDS is well within range of drinking as well as agricultural purposes.

A total of 27023 tonnes of ore with an average grade of 1.81 g/t has been estimated for

drillholes from cross section method and a total of 24334 tonnes of ore with an average grade

of 1.81 g/t has been estimated for drillholes from LV section method. Cumulative resource

estimation for Gold for boreholes drilled during FS 1999-2001 and FS 2016-17 at Chakariya

Block is 137782.5 tonnes with an average grade of 1.32 g/t.

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LOCALITY INDEX

Locality Latitudes Longitudes

Toposheet No. Deg Min Sec Deg Min Sec

Bandhoura 24 16 30 82 43 30 63 L/11

Chakariya 24 27 20 82 43 15 63L/11

Churki 24 15 0 82 43 12 63L/11

Dar 24 19 5 82 40 25 63L/11

Karaila 24 27 25 82 33 50 63L/11

Karaila Road

Railway Station 24 16 21 82 43 36

63 L/11

Silphori 24 19 40 82 44 50 63L/11

ANNEXURE-I (A)

Field data sheet of water samples and its in-situ measurements in Toposheet No. 63L/11 (Chakariya Block)

Workers Name: Gladson Bage, Sr. Geologist, Abhinav Om Kinker, Geologist and Pradeep Mishra, JTA

FSP Item No.: 054/ME/CR/MP/2016/044

(Based on spot analysis)

Sample No. Latitude

(DMS)

Longitude

(DMS)

Type of

Well Altitude

(m)

Electric

Conductivity

(µS)

pH Temperature

(°C)

TDS

(mg/L)

63L11/W1/CHK/JBP/16-17 24° 16' 53.9" 82° 43' 54.8" Dug well 335 346 6.70 24.57 208



63L11/W4/CHK/JBP/16-17 24° 17' 1.0" 82° 43' 26.3" Hand

pump 347 391 6.94 27.92 235


ANNEXURE-I (B)

Dugwell/Handpump water analysis of toposheet no 63L/11 (part), Chakariya Block

Geochemical Laboratory, State Unit: MP, Bhopal

Workers Name: Gladson Bage, Sr. Geologist, Abhinav Om Kinker, Geologist and Pradeep Mishra, JTA


Sl. No. pH Conduct TDS HCO3 CO3 Chloride SO4 Ca Mg Hardness

as

CaCO3

Na K SiO2 F NO3 PO4

63L/11/CHK/JBP/2

016-17 6.7 346 208 165 0.00 0 8.1 16 18 115 27.3 0.4 35.0 0.56 5.10 0.25

63L/11/CHK/JBP/2

016-17 7.4 342 205 165 0.00 0 7.8 14 4 50 33.2 0.6 33.5 0.64 8.20 0.26

63L/11/CHK/JBP/2

016-17 7.4 380 220 177 0.00 0 8.2 16 4 55 40.0 0.6 38.0 0.78 15.6 0.4

63L/11/CHK/JBP/2

016-17 6.9 391 235 183 0.00 0 9.0 22 6 80 23.7 1.8 39.0 0.42 5.30 0.22

63L/11/CHK/JBP/2

016-17 7.4 412 247 153 0.00 84 6.8 18 9 80 44.6 0.4 40.5 0.90 0.34 0.43 (All values in ppm except Conductivity in µs/cm)

ANNEXURE-I (C)

Descriptive statistics of Dugwell/Handpump water analysis of toposheet no 63L/11 (part), Chakariya Block

Mean Median Mode

Standard

Deviation

Sample

Variance Kurtosis Skewness Range Minimum Maximum Sum

pH 7.16 7.4 7.4 0.34 0.11 -2.20 -0.81 0.7 6.7 7.4 35.8

Conduct 374.2 380 #N/A 29.90 894.20 -2.01 0.05 70 342 412 1871

TDS 223 220 #N/A 17.87 319.50 -1.78 0.46 42 205 247 1115

HCO3 168.6 165 165 11.70 136.80 -0.82 -0.08 30 153 183 843

CO3 0 0 0 0.00 0.00 0.00 0.00 0 0 0 0

Chloride 16.8 0 0 37.57 1411.20 5.00 2.24 84 0 84 84

SO4 7.98 8.1 #N/A 0.79 0.63 1.47 -0.48 2.2 6.8 9 39.9

Ca 17.2 16 16 3.03 9.20 1.46 1.12 8 14 22 86

Mg 8.2 6 4 5.85 34.20 2.55 1.63 14 4 18 41

Hardness as

CaCO3 76 80 80 25.84 667.50 0.32 0.79 65 50 115 380

Na 33.76 33.2 #N/A 8.66 74.92 -1.92 0.15 20.9 23.7 44.6 168.8

K 0.76 0.6 0.4 0.59 0.35 4.44 2.08 1.4 0.4 1.8 3.8

SiO2 37.2 38 #N/A 2.89 8.33 -1.86 -0.33 7 33.5 40.5 186

F 0.66 0.64 #N/A 0.19 0.03 -0.92 0.05 0.48 0.42 0.9 3.3

NO3 6.908 5.3 #N/A 5.62 31.55 1.53 0.86 15.26 0.34 15.6 34.54

PO4 0.312 0.26 #N/A 0.10 0.01 -2.83 0.55 0.21 0.22 0.43 1.56

ANNEXURE-I (D)

Dugwell/Handpump (ICPMS) water analysis of toposheet no 63L/11 (part), Chakariya Block

Sr. No. V Cr Mn Fe Co Ni Cu Zn As Ag Pb Cd Bi

63L11/W1/CHK/JBP/16-17 <5 <4 1.57 159.17 0.08 <1 <0.5 6.51 7.50 <0.02 <0.5 <0.01 <0.02

63L11/W2/CHK/JBP/16-17 <5 <4 1.83 144.45 0.07 <1 <0.5 7.62 3.63 <0.02 <0.5 <0.01 <0.02

63L11/W3/CHK/JBP/16-17 <5 <4 1.95 145.23 0.07 <1 <0.5 3.11 27.49 <0.02 <0.5 <0.01 <0.02

63L11/W4/CHK/JBP/16-17 <5 <4 358.68 268.34 0.55 <1 <0.5 10.69 1.21 <0.02 <0.5 <0.01 <0.02

63L11/W5/CHK/JBP/16-17 <5 <4 6.71 207.12 0.10 <1 <0.5 3.61 5.13 <0.02 <0.5 <0.01 <0.02

• (All results in (µg/Kg) or ppb

Dugwell/Handpump, (ICPMS)Descriptive statistics of toposheet no 63L/11 (part), Chakariya Block

ANNEXURE-I (E)

Mean Median Mode

Standard

Deviation

Sample

Variance Kurtosis Skewness Range Minimum Maximum Sum

V 2.5 2.5 2.5 0 0 -- -- 0 2.5 2.5 12.5

Cr 2 2 2 0 0 -- -- 0 2 2 10

Mn 74.1 2.0 #N/A 159.1 25304.1 5.0 2.2 357.1 1.6 358.7 370.7

Fe 184.9 159.2 #N/A 53.2 2832.0 0.5 1.2 123.9 144.5 268.3 924.3

Co 0.2 0.1 0.1 0.2 0.0 4.9 2.2 0.5 0.1 0.6 0.9

Ni 0.5 0.5 0.5 0.0 0.0 -- -- 0.0 0.5 0.5 2.5

Cu 0.3 0.3 0.3 0.0 0.0 -- -- 0.0 0.3 0.3 1.3

Zn 6.3 6.5 #N/A 3.1 9.6 -0.8 0.5 7.6 3.1 10.7 31.5

As 9.0 5.1 #N/A 10.6 112.2 4.1 2.0 26.3 1.2 27.5 45.0

Ag 0.0 0.0 0.0 0.0 0.0 -- -- 0.0 0.0 0.0 0.1

Pb 0.3 0.3 0.3 0.0 0.0 -- -- 0.0 0.3 0.3 1.3

Cd 0.0 0.0 0.0 0.0 0.0 -- -- 0.0 0.0 0.0 0.0

Bi 0.0 0.0 0.0 0.0 0.0 -- -- 0.0 0.0 0.0 0.1

Cd 0.005 0.005 0.005 0 0 -- -- 0 0.005 0.005 0.025

Bi 0.01 0.01 0.01 0 0 -- -- 0 0.01 0.01 0.05

ANNEXURE-I (F)

Correlation matrix of Dugwell/Handpump water sample geochemical analysis of toposheet no 63L/11 (part), Chakariya Block

Mn Fe Co Zn As

Mn 1

Fe 0.88 1

Co 1.00 0.90 1

Zn 0.79 0.57 0.78 1

As -0.41 -0.54 -0.43 -0.69 1

ANNEXURE-I (G)

Dugwell/Handpump water analysis by Direct Mercury Analyzer (DMA) method of toposheet no 63L/11 (part), Chakariya Block

Geochemical Laboratory, State Unit: MP, Bhopal

Workers Name: Gladson Bage, Sr. Geologist, Abhinav Om Kinker, Geologist


Sr.

No.

63L11/W1/CHK/JBP/16-

17


17


17


17


17

Hg <1 <1 <1 <1 <1

• (All results in (µg/Kg) or ppb

ANNEXURE-II

DETAILS OF LITHOLOGY OF TRENCH NO.CTR-01

Name of investigation: Gold investigation in Chakariya Block.

Date of Commencement: 20/01-17

Date of Completion:25/01/17

Location: Latitude: N 24°17´ 11.6´´

Longitude: E 82°43´ 27.2´´

Altitude: 379 m

Length of Trench: 07mts, Width: 1mts, Depth: 01

Total Volume excavated: 07 cu m

Location: 40 mts from CBH-01 along the profile of i.e. N23°E

sl

no. samples no.

length of

sample lithology

from

(m)

to

(m)

1 01/1/PTS/CHK/2016-17 0.00 1.00

Greenish/Grey Phyllite, Mica Prominent

spotted appearance. Dip 320/38-NE

2 01/2/PTS/CHK/2016-17 1.00 2.00

Greenish/Grey Phyllite, weakly developed

Joints

3 01/3/PTS/CHK/2016-17 2.00 3.00

Greenish/Grey Phyllite, Prominent

developed Joints 15/58-SE,Phyllitic sheen

observed

4 01/4/PTS/CHK/2016-17 3.00 4.00

Greenish/Grey Phyllite, Prominent

developed one set of Joints 15/58-

SE,Phyllitic bit ferrugenised

5 01/5/PTS/CHK/2016-17 4.00 5.00 Greenish/Grey Phyllite



ANNEXURE-III

DETAILS OF LITHOLOGY OF TRENCH NO. CTR-02


Date of Commencement:25/01/17



Longitude: E 82°43´ 27.4´´

Altitude: 382 m


Total Volume excavated: 18cu m

Location: 50 mts from CBH-01 along the profile, i.e. N23°E

sl

no. samples no.

length of

sample

lithology

from

(m) to (m)

1 02/1/PTS/CHK/2026-17

0.00 1.00 Tuffaceous phyllite yellowish

ting with green. Friable/Green

2 02/2/PTS/CHK/2026-17

1.00 2.00 Tuffaceous phyllite yellowish

ting with green. Friable/Green

3 02/3/PTS/CHK/2026-17

2.00 3.00 2.00 2.51 Tuffaceous phyllite yellowish

ting with green. Friable/Green.

Change is gradational on the

basis of Compactness. (Very thin

ranging from few mm to 2 cm in

thickness of Quartz vein. Cross

cutting. Tuffaceous phyllite at

the start of Section of CTR-3

2.51 3.00 Greyish/Greenish Phyllite

4 02/4/PTS/CHK/2026-17

3.00 4.00 3.00 3.25 Tuffaceous phyllite

3.25 4.00 Greenish/Yellowish Green

phyllite. Locally ferrugenised 2

cm BIF band in phyllite

5 02/5/PTS/CHK/2026-17

4.00 5.00 4.00 4.02 Quartz vein Over all the

lithology is

Greenish Green

phyllite with 2 cm

thick quartz vein

and 2 cm BIF

bands is present in

Phyllite.

4.03 4.05 BIF

6

02/6/PTS/CHK/2026-17

5.00 6.00 5.00 5.09 Phyllite Greyish Green

Phyllite, locally

ferrugenised. 2.5

5.09 5.10 BIF

5.10 5.125 Qtz Vein

5.12

5

5.135

BIF

cm thick bands of

Quartz vein

present at the start

of section.

Surrounded by 1

cm thick BIF on

Both side. Quartz

vein is intruded

along the foliation

of BIF,

Intermittently the

Greenish Grey

Phyllite is

Changing to

ferruginous

phyllite

5.13

5

5.9

Phyllite

5.9 5.92 Qtz vein

5.92 6.00

Phyllite

7 02/7/PTS/CHK/2026-17

6.00 7.00 6.00 6.1 Ferruginous

Phyllite BIF +

Ferrugenous

phyllite with

intermittent

Quartz vein

6.1 6.12 Quartz Vein

6.12 7.00 BIF+

Ferrugenous

Phyllite

8 02/8/PTS/CHK/2016-17

7.00 8.00 7.00 7.08 Phyllite+BI

F BIF +

Ferrugenous

phyllite with

intermittent

Scorodite band

7.08 7.35 Scorodite

7.35 8.00 Phyllite+BI

F

9 02/9/PTS/CHK/2016-17

8.00 9.00 8.00 8.33 Greenish

Phyllite

Greenish phyllite

with BIF Band

8.33 8.36 BIF/Chert

Band

8.36 9.00 Phyllite

Locally

ferrugenize

d

10 02/10/PTS/CHK/2016-17

9.00 10.00 BIF + Phyllite. Lenses of

boudins of silica/Chert bands

sandwithched within BIF bands.

Bearing: 112/39°-NE. Phyllite is

locally ferrugenized in the

vicinity of BIF.

11 02/11/PTS/CHK/2016-17

10.00 11.00 10.0

0

10.95

Phyllite+ BIF

Phyllite+ BIF.

Contact is

gradational.

Quartz vein

showing

mineralization

and

development of

scorodite

within and

closely

associated with

BIF in

viscinity.

10.9

5

11.00

Quartz Vein

12 02/12/PTS/CHK/2016-17

11.00 12.00 11.0

0

11.05

Scorodite

BIF +

Phyllite/Greeni

sh Phyllite.

Numerous few

mm thick

quartz vein

present along

the foliation

plane. 11.20 to

11.28

(Transition

zone i.e.

Weathered

zone)

Bearing:

110/38°-NE

11.0

5

12.00

BIF+phyllite

13 02/13/PTS/CHK/2016-17

12.00 13.00 12.0

0

12.42

Phyllite

Phyllite + BIF.

Scorodite and

Quartz vein

present within

the zone.

12.4

2

12.62

BIF

12.6

2

12.92 Phyllite ( 2 cm

Quartz vein

within)

12.9

2

13.00

Scorodite

14 02/14/PTS/CHK/2016-17

13.00 14.00 13.0

0

13.05 Scorodite BIF+phyllite.

Scorodite band

present within. 13.0

5

14.00 Alternation of

BIF+phyllite

15 02/15/PTS/CHK/2016-17 14.00 15.00 14.00 14.52 Phyllite Phyllite+ BIF

+Ferrugenous

Phyllite

14.52 14.56 Quartz vein

15.56 14.59 BIF

14.59 14.68 Phyllite

14.68 14.80 BIF


16 02/16/PTS/CHK/2016-17

15.00 16.00 15.00 15.32 Phyllite+Ferru

genous Phyllite

Phyllite+ BIF

15.32 15.38 BIF


17 02/17/PTS/CHK/2016-17

16.00 17.00 16.00 16.35 Phyllite

Phyllite+ BIF

16.35 16.41 BIF


16.51 16.58 Oxidized zone

16.58 17.00 BIF+phyllite

(Qtz vein

intruded)

18 02/18/PTS/CHK/2016-17

17 18 17.00 17.12 BIF+phyllite

Phyllite+ BIF

17.12 17.15 Qtz Vein

17.15 17.80 BIF+phyllite

17.80 17.90 BIF

17.90 18.00 Phyllite+BIF

ANNEXURE-IV

DETAILS OF LITHOLOGY OF TRENCH NO. CTR-03


Date of Commencement:04/02/17



Longitude: E 82°43´ 32.9´´

Altitude: 380 m


Total Volume excavated: 12 cu m

Location: 40 mts from CBH-4 along the profile of i.e. N23°E

sl

no. samples no.

length of

sample

lithology

from

(m)

to

(m)

1 03/1/PTS/CHK/2016-17 0.00 1.00 Phyllite. Foliation are vertical

2 03/2/PTS/CHK/2016-17 1.00 2.00

1.00 1.05 phyllite

Phy+Tuff.

Phyllite

1.05 2.00 Tuffaceous

phyllite

3 03/3/PTS/CHK/2016-17 2.00 3.00

2.00 2.07 Tuffaceous

phyllite

Tuffaceous

phyllite+

Greenish

Phyllite

2.07 2.42 Yellowish

phyllite

2.42 2.78 Greenish

phyllite

2.78 3.00 Yellowish/Gr

eenish

phyllite

4 03/4/PTS/CHK/2016-17 3.00 4.00

Yellowish green phyllite.

Highly sheared, fractured.

5 03/5/PTS/CHK/2016-17 4.00 5.00 Yellowish Green Phyllite

6 03/6/PTS/CHK/2016-17 5.00 6.00

5.00 5.80 Yellowish

Green

Phyllite Yellowish +

Green

Phyllite

5.80 6.00 Greenish

Phyllite

7 03/7/PTS/CHK/2016-17 6.00 7.00

6.00 6.28 Greenish

Phyllite

Greenish

Phyllite

6.28 6.50 Oxidized

Zone

6.50

7.00

Greenish

Phyllite

8

03/8/PTS/CHK/2016-17

7.00 8.00

7.00 7.60 Greenish

Phyllite

Greenish+

Yellowish

7.60 7.85 Yellowish

Green phyllite

Green

Phyllite

7.85 8.00 Greenish

Phyllite

9

03/9/PTS/CHK/2016-17

8.00 9.00

8.00 8.70 Greenish

Phyllite

Greenish +

Tuffaceous

Phyllite

8.70 9.00

Tuffaceous

Phyllite

10

03/10/PTS/CHK/2016-17

9.00

10.0

0

Greenish Phyllite

11

03/11/PTS/CHK/2016-17

10.00

11.0

0

Greenish Phyllite

12

03/12/PTS/CHK/2016-17

11.00

12.0

0

Greenish Phyllite ( local

ferrugenisation)

Annexure-XV-A: Spot values in % for EPMA sections for Sulphide phases.

FileName : Gladson- 05- BSE-1- Points 1 to 20

Weight

%

DataSet/Poin

t As Au Bi Fe Co Ni Cu Zn Ag S Sb Pb Total

1 / 1 . 5.77 63.37 5.02 5.88 0.01 0.01 0 0 14.57 2.91 0 0 97.55

2 / 1 . 0.08 0 98.08 2.21 0 0.06 0 0 0 0.07 0.07 0 100.57

3 / 1 . 40.77 0 0.09 35.1 0.04 0 0.03 0.01 0 21.82 0 0 97.86

4 / 1 . 41.24 0 0.01 35.61 0 0 0 0 0 21.96 0 0 98.83

5 / 1 . 43.26 0 0.01 34.87 0.16 0.04 0 0 0 19.96 0 0 98.31

6 / 1 . 40.89 0 0 34.82 0 0.03 0.03 0.04 0.01 22.01 0.02 0 97.85

7 / 1 . 43.05 0 0.01 34.83 0.16 0 0.04 0 0.01 20.42 0.05 0 98.58

8 / 1 . 43.33 0 0 34.74 0 0 0 0.02 0 20.21 0 0 98.3

9 / 1 . 41.13 0 0 35.45 0 0 0.06 0 0 21.99 0.02 0 98.65

10 / 1 . 42.26 0 0.02 34.83 0.03 0.02 0 0 0 21.07 0 0 98.23

11 / 1 . 29.51 0.11 30.47 24.93 0.16 0.02 0 0 0 13.35 0.06 0 98.61

12 / 1 . 41.8 0 1.12 35.11 0.04 0.01 0 0 0 21.69 0.02 0 99.78

13 / 1 . 41.81 0 0.12 35.64 0 0.02 0.11 0 0 21.1 0 0 98.8

14 / 1 . 40.41 0 0 35.47 0 0.06 0 0.05 0 22.23 0.08 0 98.31

15 / 1 . 41.55 0 0 35.49 0.04 0 0 0.03 0.06 21.81 0.07 0 99.04

16 / 1 . 41.84 0 0 34.93 0 0 0.07 0.01 0 21.52 0.03 0 98.4

17 / 1 . 42.52 0 0.06 35.44 0.03 0 0 0 0 21.65 0 0 99.7

18 / 1 . 42.48 0 0.07 34.92 0.04 0.08 0 0.01 0 21.26 0.03 0 98.89

19 / 1 . 42.06 0 0.04 35.19 0.04 0 0.04 0.05 0 21.46 0 0 98.88

20 / 1 . 41.73 0 0 35.4 0.02 0 0 0.07 0 21.11 0 0 98.33

Annexure-XV-B: Spot values in % for EPMA sections for Sulphide phases in slide no. 04.

Weight%

DataSet/Point As Au Bi Fe Co Ni Cu Zn Ag S Sb Pb Total

1 / 1 . 44.17 0 0.1 34.14 0.09 0.02 0.03 0.01 0 19.65 0 0 98.21

2 / 1 . 0 0 0.02 58.09 0 0 0.04 0 0 39.75 0 0 97.91

3 / 1 . 44.36 0 0.07 34.95 0 0 0 0.01 0 19.93 0 0 99.33

4 / 1 . 44.41 0 0.02 34.01 0.03 0.3 0.04 0.01 0 19.82 0.02 0 98.66

5 / 1 . 44.14 0 0.08 34.57 0.1 0.05 0 0.1 0 20.11 0 0 99.14

6 / 1 . 44.67 0 0 33.58 0.61 0.14 0.05 0.02 0 19.72 0.01 0 98.79

7 / 1 . 45.02 0 0.06 34.25 0.13 0.18 0 0.01 0 19.88 0 0 99.52

8 / 1 . 0 0 0.07 58.64 0.01 0 0 0 0.02 40.24 0 0 98.98

9 / 1 . 0.04 0 0.09 58.42 0 0.1 0 0.03 0 39.29 0.06 0 98.04

10 / 1 . 44.14 0 0 33.78 0.36 0.07 0 0 0.01 19.87 0 0 98.24

11 / 1 . 43.19 0 0.03 34.29 0.09 0.07 0 0 0 19.92 0.01 0 97.61

12 / 1 . 43.69 0 0.09 34.09 0.04 0.07 0 0.02 0 19.62 0 0 97.64

13 / 1 . 43.99 0 0.05 33.6 0.65 0.08 0 0.08 0.05 19.58 0.01 0 98.1

14 / 1 . 44.17 0 0 34.39 0.06 0.3 0.06 0 0 19.79 0 0 98.77

15 / 1 . 44.34 0 0 33.81 0.28 0.06 0.06 0 0.01 19.37 0 0 97.92

16 / 1 . 0.01 0.02 0.05 57.28 0 0.06 0.02 0 0 39.74 0 0 97.18

17 / 1 . 0.01 0 0.02 46.14 0.01 0.02 0.01 0.06 0 53.66 0 0 99.93

18 / 1 . 0.02 0 0.19 57.91 0 0.1 0.05 0 0 40.74 0 0 99.01

19 / 1 . 0.02 0 0.03 58.5 0 0.01 0 0.02 0 39.76 0 0 98.33

20 / 1 . 0 0 0.05 57.01 0.01 0.05 0 0 0 40.44 0 0 97.57

21 / 1 . 0.01 0 0.13 55.61 0 0.12 0 0 0.02 42.11 0 0 98.01

22 / 1 . 0.11 0 0.03 46.22 0 0.03 0.17 0.02 0 53.5 0 0 100.08

23 / 1 . 0.04 0 0.08 45.91 0 0.19 0 0 0 53.1 0.02 0 99.33

24 / 1 . 0.03 0.04 0.12 46.36 0.03 0 0 0.01 0 53.8 0 0 100.38

25 / 1 . 0 0 0.22 51.7 0.03 0.13 0.08 0 0.02 47.58 0 0 99.76

Annexure-XV-C: Spot values in % for EPMA sections for Sulphide phases in slide no. 08.

Weight

%

DataSet/Poin


1 / 1 . 0 0 0.11 29.9 0 0.01 33.78 0.05 0.03 35.06 0 0 98.94

2 / 1 . 0 0 0.1 29.52 0 0 33.76 0.02 0.04 34.4 0 0 97.82

3 / 1 . 44.7 0 0 31.24 2.92 0.38 0.02 0 0 19.93 0.04 0 99.22

4 / 1 . 45.27 0 0.04 31.78 1.88 0.41 0.02 0 0 20.29 0.02 0 99.7

5 / 1 . 0 0 0.1 29.41 0 0.02 35.23 0.02 0 35.53 0.06 0 100.36

6 / 1 . 0 0 0.05 29.18 0.03 0 34.58 0 0 34.62 0.04 0 98.49

7 / 1 . 0 0 0.08 29.42 0 0.01 34.52 0.03 0 35.55 0 0 99.61

8 / 1 . 0.01 0 0.01 29.32 0 0.01 33.94 0 0.01 35.26 0 0 98.55

9 / 1 . 0 0 0.14 28.98 0.03 0.01 34.23 0 0.06 34.7 0.03 0 98.16

10 / 1 . 0 0 0.05 58.23 0.01 0.01 0.11 0 0 40.02 0 0 98.43

11 / 1 . 0.02 0 0.13 29.53 0 0.02 34.36 0 0.02 35.68 0 0 99.75

12 / 1 . 0 0 0.16 29.29 0 0.07 33.93 0.01 0.02 36.01 0 0 99.5

13 / 1 . 0.05 0 0.02 28.99 0 0.06 33.72 0.07 0 36.83 0.04 0 99.77

14 / 1 . 0.02 0 0.08 28.84 0.01 0.04 34.27 0.07 0 35.09 0 0 98.42

15 / 1 . 0.04 0 0.04 29.56 0.01 0 34.21 0 0 34.92 0 0 98.77

Annexure-XV-D: Spot values in % for EPMA sections for Sulphide phases in slide no. 06.


1 / 1 . 43.25 0 0 33.02 0.44 0.06 0.04 0 0 19.53 0 0 96.33

2 / 1 . 43.99 0 0.07 32.36 0.49 0 0 0 0 20.88 0 0 97.79

3 / 1 . 36.21 0 0 33.52 0.39 0 0 0 0 19.6 0 0 89.72

4 / 1 . 42.72 0 0.01 34.04 0.44 0.05 0 0 0 21 0 0 98.25

5 / 1 . 43.92 0 0.06 34.3 0.63 0.03 0.03 0 0 19.64 0 0 98.6

6 / 1 . 43.3 0 0.02 34.2 0.62 0.13 0 0 0 20.07 0 0 98.35

7 / 1 . 36.19 0 0.1 34.06 0.57 0.08 0.03 0.05 0 19.32 0 0 90.4

8 / 1 . 0 0 0.1 45.91 0 0.06 0.03 0 0 52.63 0 0 98.74

9 / 1 . 0 0 0.09 45.95 0 0 0.01 0.01 0 52.51 0.04 0 98.61

10 / 1 . 0.04 0 0.04 46.2 0 0 0 0.01 0 51.78 0 0 98.07

11 / 1 . 0.03 0 0.1 46.61 0 0.08 0 0 0 52.03 0 0 98.86

12 / 1 . 0.02 0 0 46.46 0.01 0.11 0.01 0 0 51.85 0.09 0 98.54

13 / 1 . 0 0 0.07 47.04 0.01 0 0 0.03 0 52.01 0 0 99.16

14 / 1 . 0 0 0.1 58.5 0 0.05 0.1 0 0 39.45 0.02 0 98.23

15 / 1 . 0 0 0.06 58.53 0 0.04 0 0 0 38.95 0 0 97.58

16 / 1 . 0 0 0.1 58.98 0 0.02 0.03 0 0 39.32 0 0 98.45

17 / 1 . 0.01 0 0.12 46.55 0.01 0.08 0.01 0 0 52.26 0 0 99.02

18 / 1 . 0.01 0 0.09 46 0.04 0.09 0 0 0.01 51.95 0 0 98.21

19 / 1 . 0.03 0 0.11 46.66 0 0 0 0 0 52.19 0 0 98.98

20 / 1 . 0.01 0 0.1 46.55 0 0.08 0 0 0 52.13 0 0 98.88

Annexure-XV-E: Spot values in % for EPMA sections for Sulphide phases in slide no. 09.

Weight

%

DataSet/Poin


1 / 1 . 0 0 0.11 28.93 0 0.01 33.94 0.02 0 35.39 0 0 98.41

2 / 1 . 0 0 0.14 29.23 0.01 0 34.13 0.02 0 34.92 0 0 98.45

3 / 1 . 0 0 0 28.78 0.03 0 34.37 0 0 34.85 0.01 0 98.03

4 / 1 . 0 0 0 29.6 0.04 0 33.73 0 0 35.24 0 0 98.61

5 / 1 . 0.04 0 0.04 29.39 0 0 33.69 0.03 0.03 35.25 0 0 98.47

6 / 1 . 0.01 0 0.01 29.39 0 0 33.58 0 0 34.71 0 0 97.69

7 / 1 . 0 0 0.03 29.1 0.01 0.1 33.8 0.58 0 34.75 0 0 98.39

8 / 1 . 0.02 0 0.06 29.12 0 0.02 34.05 0.04 0 34.83 0 0 98.14

9 / 1 . 0 0 0.11 28.84 0 0 34.54 0.02 0 34.99 0 0 98.5

10 / 1 . 0.02 0 0.03 29.19 0.01 0.02 34.56 0 0 35.46 0.03 0 99.32

11 / 1 . 4.45 0 73.45 4.8 0.03 0 0 0 0 3.59 0.12 0 86.44

12 / 1 . 43.68 0 0 34.27 0.4 0.02 0.04 0.01 0 19.27 0 0 97.69

13 / 1 . 43.2 0 0 34.98 0.06 0.01 0 0 0 20.22 0 0 98.47

14 / 1 . 43.21 0 0 34.68 0.02 0.02 0.04 0 0 19.9 0 0 97.88

15 / 1 . 43.16 0 0.08 34.69 0.28 0 0 0 0 20.55 0.08 0 98.83

16 / 1 . 43 0 0.01 35.05 0.02 0 0 0 0 20.8 0 0 98.88

17 / 1 . 43.07 0 0.04 34.34 0.08 0.02 0.02 0.02 0 20.38 0.04 0 98.03

18 / 1 . 43.46 0 0.06 34.84 0.05 0.1 0 0 0 19.95 0 0 98.46

19 / 1 . 43.15 0 0.01 34.32 0.59 0.08 0.03 0.02 0 20.08 0 0 98.29

20 / 1 . 43.64 0 0.07 34.9 0.04 0.04 0 0.01 0 20.37 0 0 99.08

21 / 1 . 43.36 0 0.1 34.93 0.02 0.08 0 0 0 20.14 0 0 98.64

22 / 1 . 43.59 0 0.02 34.68 0.32 0.04 0 0 0 19.95 0.02 0 98.62

23 / 1 . 43.09 0 0.05 34.37 0.23 0 0.02 0.01 0.01 19.75 0 0 97.53


Weight%

DataSet/Poin


1 / 1 . 0 0 0.17 46 0 0.04 0.06 0 0 53.47 0 0 99.74

2 / 1 . 0 0 0.02 0.53 0.01 0 0 0.05 3.66 0.33 0 1.26 5.87

3 / 1 . 0.01 0 0.1 59.22 0.03 0.04 0.04 0.01 0 38.74 0.04 0 98.23

4 / 1 . 0.01 0 0.02 57.97 0.01 0.05 0 0.04 0 38.99 0 0 97.1

5 / 1 . 0 0 0.16 58.38 0.02 0.06 0 0 0 38.75 0 0 97.37

6 / 1 . 42.19 0 0.08 34.42 0.3 0 0.02 0 0 20.12 0.09 0 97.22

7 / 1 . 39.54 0.1 0.02 35.35 0 0.04 0 0 0 22.79 0.01 0 97.85

8 / 1 . 40.34 0 0.01 35.84 0 0.05 0 0 0 22.47 0 0 98.71

9 / 1 . 39.79 0 0.04 35.63 0.03 0 0 0 0 22.4 0 0 97.88

10 / 1 . 43.86 0 0.14 34.33 0.42 0.01 0 0 0 20.26 0 0 99.02

11 / 1 . 0.02 0 0.12 58.28 0.01 0.02 0 0 0 39.84 0.04 0 98.34

12 / 1 . 0.02 0 0.04 58.47 0 0.01 0 0 0 38.96 0 0 97.5

13 / 1 . 0 0 0.1 58.83 0 0.05 0 0.05 0 38.85 0 0 97.89

14 / 1 . 41.16 0 0.02 34.96 0.01 0.1 0 0 0 21 0.01 0 97.26

15 / 1 . 41.66 0 0.05 34.79 0.01 0.04 0 0 0 21.35 0 0 97.9

16 / 1 . 0 0 0.01 0.44 0.01 0.01 0 0 3.52 0.2 0 0.44 4.63

17 / 1 . 0.01 0 0.05 0.64 0 0.01 0 0.03 3.41 0.2 0 0.47 4.83

18 / 1 . 42.15 0 0 34.88 0.33 0 0.02 0 0 21.18 0 0 98.55

19 / 1 . 0 0 0.09 58.47 0 0 0 0 0 39.03 0 0 97.6

20 / 1 . 0.03 0 0.08 58.21 0.02 0.05 0 0.02 0 39.85 0 0 98.26

21 / 1 . 0.02 0 0.02 57.27 0 0.04 0.06 0 0 39.46 0 0 96.87

22 / 1 . 0.02 0 0.08 58.49 0.04 0.04 0 0 0 40.12 0 0 98.79

23 / 1 . 0.02 0 0.06 59.06 0 0 0.09 0.05 0 39.19 0 0 98.49

24 / 1 . 40.83 0 0.08 35.42 0 0 0 0 0 22.43 0 0 98.76

25 / 1 . 39.87 0 0.01 35.46 0 0.03 0.04 0 0 23.15 0.06 0 98.61

26 / 1 . 38.99 0 0 35.33 0.02 0 0 0 0 22.94 0 0 97.28

27 / 1 . 0.03 0 0.08 46.18 0.03 0.04 0.01 0 0 52.79 0.03 0 99.2

28 / 1 . 0 0 0.15 46.05 0.03 0 0 0.04 0.02 53.5 0 0 99.79

29 / 1 . 0 0 0.07 59.02 0 0 0 0.04 0 38.46 0 0 97.59

30 / 1 . 0.02 0 0.16 59.32 0 0.04 0 0 0 39.05 0 0 98.58

31 / 1 . 0.02 0 0.08 59.27 0.02 0.03 0 0.05 0 39.17 0 0 98.64

32 / 1 . 0 0 0.06 58.57 0.01 0.04 0 0 0 39.37 0 0 98.04

33 / 1 . 0 0 0.11 46.13 0.03 0.05 0 0.09 0 53.17 0 0 99.59

34 / 1 . 0 0.16 0 38.73 0 0.04 0 0.04 0 0 0 0 38.95

35 / 1 . 0 0 0 39.7 0 0.03 0.02 0.01 0 0.02 0.03 0 39.82

ANNEXURE –VI-A

GEOCHEMICAL ANALYTICAL RESULTS OF BED ROCK SAMPLES (BRS)

S.

No.

Reference No. Cu

Pb Zn

Co Ag

Ni

Au

Mo

As

Bi

1 01/BRS/CHK/16-17 160 135 15 10 5 20 725(0.72ppm) 0.51 350 32.10

2 02/BRS/CHK/16-17 25 175 35 25 4 40 30 <0.5 240 0.18

3 03/BRS/CHK/16-17 250 115 55 15 9 35 7780(7.78ppm) <0.5 190 51.41

4 04/BRS/CHK/16-17 40 140 45 35 8 30 810(0.81ppm) <0.5 90 5.44

5 05/BRS/CHK/16-17 170 75 10 15 8 <10 85 <0.5 1069 0.19

6 06/BRS/CHK/16-17 10 10 60 15 1 40 3250(3.25ppm) <0.5 20.48% 12.57

7 07/BRS/CHK/16-17 760 210 30 50 <1 45 205 <0.5 431 0.17

8 08/BRS/CHK/16-17 10 155 20 15 <1 25 1255(1.26ppm) <0.5 24.00% 46.62

9 09/BRS/CHK/16-17 30 165 15 25 <1 35 30 <0.5 878 0.15

10 10/BRS/CHK/16-17 65 130 <10 15 <1 10 <25 <0.5 241 0.36

11 11/BRS/CHK/16-17 45 95 <10 20 <1 15 2390(2.39ppm) <0.5 150 0.03

12 12/BRS/CHK/16-17 60 75 <10 20 <1 10 8750(8.75ppm) <0.5 19.80% 19.13

13 13/BRS/CHK/16-17 115 65 <10 20 <1 <10 8230(8.23ppm) <0.5 15.20% 8.80

14 14/BRS/CHK/16-17 150 150 <10 20 4 20 9160(9.16ppm) <0.5 6.76% 9.22

15 15/BRS/CHK/16-17 165 200 <10 40 1 25 7880(7.88ppm) <0.5 14.88% 13.54

16 16/BRS/CHK/16-17 150 165 10 20 <1 30 2060(2.06ppm) <0.5 12.76% 18.83

17 17/BRS/CHK/16-17 65 190 <10 <10 10 15 4620(4.62ppm) <0.5 13.38% 8.01

18 18/BRS/CHK/16-17 215 155 40 <10 1 15 45 <0.5 4.80% 5.37

19 19/BRS/CHK/16-17 10 30 20 <10 <1 20 55 <0.5 349 0.07

20 20/BRS/CHK/16-17 <10 <10 <10 20 <1 15 160 <0.5 402 0.12

21 21/BRS/CHK/16-17 20 35 <10 25 <1 15 385 <0.5 89 0.11

22 22/BRS/CHK/16-17 10 145 30 <10 <1 35 25 0.59 100 1.27

23 23/BRS/CHK/16-17 50 10 35 <10 <1 25 <25 -- -- --

24 24/BRS/CHK/16-17 45 75 40 15 4 20 <25 -- -- --

25 25/BRS/CHK/16-17 35 40 65 15 <1 30 <25 -- -- --

26 26/BRS/CHK/16-17 35 95 30 15 3 20 <25 -- -- --

27 27/BRS/CHK/16-17 <10 45 20 <10 <1 <10 95 -- -- --

28 28/BRS/CHK/16-17 15 75 85 25 2 15 <25 -- -- --

29 29/BRS/CHK/16-17 30 40 120 <10 3 60 <25 -- -- --

30 30/BRS/CHK/16-17 20 40 40 25 <1 30 <25 -- -- --

31 31/BRS/CHK/16-17 <10 60 100 25 3 30 <25 -- -- --

32 32/BRS/CHK/16-17 <10 40 80 15 <1 50 <25 -- -- --

33 33/BRS/CHK/16-17 70 75 <10 35 <1 <10 45 -- -- --

34 34/BRS/CHK/16-17 205 20 20 10 2 25 <25 -- -- --

35 35/BRS/CHK/16-17 40 25 55 10 1 40 <25 -- -- --

36 36/BRS/CHK/16-17 85 25 115 15 3 40 <25 -- -- --

37 37/BRS/CHK/16-17 125 40 35 30 <1 20 50 -- -- --

38 38/BRS/CHK/16-17 540 20 40 10 2 50 <25 <0.5 17.74 0.15

39 39/BRS/CHK/16-17 10 35 40 20 2 40 <25 <0.5 91.4 0.23

40 40/BRS/CHK/16-17 10 10 70 15 2 30 <25 <0.5 20.25 0.13

41 41/BRS/CHK/16-17 600 10 40 10 1 40 <25 <0.5 86 0.13

42 42/BRS/CHK/16-17 25 75 40 30 3 25 <25 <0.5 302 0.38

43 43/BRS/CHK/16-17 20 25 45 10 2 25 <25 <0.5 455 0.28

44 44/BRS/CHK/16-17 <10 30 50 20 1 50 <25 <0.5 186 0.16

45 45/BRS/CHK/16-17 25 65 70 30 2 35 <25 2.30 1209 0.22

46 46/BRS/CHK/16-17 105 45 75 25 3 50 70 <0.5 488 0.32

47 47/BRS/CHK/16-17 <10 35 60 25 1 100 <25 <0.5 35.05 0.34

48 48/BRS/CHK/16-17 40 10 35 15 2 40 <25 <0.5 31.55 0.47

49 49/BRS/CHK/16-17 <10 <10 25 10 1 20 <25 <0.5 67 0.25

50 50/BRS/CHK/16-17 15 <10 30 <10 2 15 45 <0.5 278 0.34

All results in ppm, except Au (in ppb)

ANNEXURE –VI-B

DESCRIPTIVE STATISTICS OF BED ROCK SAMPLES (BRS)

Cu Pb Zn Co Ag Ni Au

Mean 94.80 74.20 38.90 18.80 2.30 29.20 1.18

Standard Error 21.59 8.44 3.97 1.27 0.31 2.32 0.36

Median 37.50 52.50 35.00 15.00 1.00 25.00 0.03

Mode 10.00 10.00 10.00 10.00 1.00 20.00 0.03

Standard

Deviation 152.65 59.65 28.07 9.01 2.19 16.42 2.58

Sample Variance 23302.00 3558.53 788.05 81.18 4.79 269.76 6.66

Kurtosis 9.65 -0.66 0.98 1.84 4.66 5.71 4.07

Skewness 3.03 0.78 1.13 1.27 2.24 1.75 2.32

Range 750.00 200.00 110.00 40.00 9.00 90.00 9.14

Minimum 10.00 10.00 10.00 10.00 1.00 10.00 0.03

Maximum 760.00 210.00 120.00 50.00 10.00 100.00 9.16

Sum 4740.00 3710.00 1945.00 940.00 115.00 1460.00 58.99

Count 50.00 50.00 50.00 50.00 50.00 50.00 50.00

ANNEXURE –VI-C

CORRELATION MATRIX OF BED ROCK SAMPLES (BRS)

Cu Pb Zn Co Ag Ni Au

Cu 1.00

Pb 0.22 1.00

Zn -0.12 -0.36 1.00

Co 0.19 0.39 -0.05 1.00

Ag 0.04 0.31 0.03 -0.06 1.00

Ni 0.13 -0.16 0.55 0.09 -0.09 1.00

Au 0.16 0.45 -0.27 0.12 0.14 -0.17 1.00

ANNEXURE-VII

GEOCHEMICAL ANALYTICAL RESULTS OF (Au) IN BED ROCK SAMPLES (BRS)

Sl.

No Sample No. Latitude Longitude Rock Type

Au(ppb)

1 01/BRS/CHK/16-17 N 24° 17' 8.9'' E 82° 43' 30.8'' Quartz Vein Grey

+ Phyllite

725(0.72ppm)

2 02/BRS/CHK/16-17 N 24° 17' 9.6'' E 82° 43' 31.8'' Phyllite 30

3 03/BRS/CHK/16-17 N 24° 17' 11.2'' E 82° 43' 34.1'' Phyllite 7780(7.78ppm)

4 04/BRS/CHK/16-17 N 24° 17' 14.8'' E 82° 43' 25.9'' Quartz Vein Grey 810(0.81ppm)

5 05/BRS/CHK/16-17 N 24° 17' 14.3'' E 82° 43' 24.2'' BIF 85

6 06/BRS/CHK/16-17 N 24° 17' 13.3'' E 82° 43' 25.8'' Scorodite Band 3250(3.25ppm)

7 07/BRS/CHK/16-17 N 24° 16' 45.3'' E 82° 43' 0.2'' BIF +phyllite 205



10 10/BRS/CHK/16-17 N 24° 16' 36.2'' E 82° 42' 46.9'' Phyllite <25

11 11/BRS/CHK/16-17 N 24° 17' 0.0'' E 82° 43' 45.2'' Quartz Vein Grey 2390(2.39ppm)


13 13/BRS/CHK/16-17 N 24° 16' 58.7'' E 82° 43' 46.9'' Scorodite + Quartz

Vein Grey

8230(8.23ppm)


15 15/BRS/CHK/16-17

N 24° 17' 14.4'' E 82° 43' 23.8'' Scorodite Band 7880(7.88ppm)



18 18/BRS/CHK/16-17 N 24° 17' 11.5'' E 82° 43' 29.4''

Oxidized zone

over BIF +

Scorodite

45




22 22/BRS/CHK/16-17 N 24° 17' 21.9'' E 82° 43' 15.2'' Scorodite Band 25

ANNEXURE-VIII

GEOCHEMICAL ANALYTICAL RESULTS OF PITTING AND TRENCHING SAMPLES

All values in (ppm), except Au.

S.

No

Sample No. Cu Pb Zn Co Ag Ni Mo Au Cd As

Bi

1 01/1/PTS/CHK/16-17 10 <10 25 15 1 30 <0.5 <25 --- 150 0.2

2 01/2/PTS/CHK/16-17 <10 <10 15 <10 <1 15 <0.5 30 --- 130 0.2

3 01/3/PTS/CHK/16-17 <10 35 20 20 1 10 <0.5 <25 --- 112 0.2

4 01/4/PTS/CHK/16-17 30 30 15 20 <1 10 <0.5 135 ---- 166 1.6

5 01/5/PTS/CHK/16-17 40 30 15 15 1 15 <0.5 <25 --- 330 0.3

6 01/6/PTS/CHK/16-17 15 30 20 15 1 30 <0.5 <25 --- 105 0.2

7 01/7/PTS/CHK/16-17 15 20 15 10 2 15 <0.5 <25 --- 125 1.1

8 02/1/PTS/CHK/16-17 10 15 10 <10 <1 <10 <0.5 50 --- 215 0.5

9 02/2/PTS/CHK/16-17 15 30 20 15 2 20 <0.5 <25 --- 140 0.4

10 02/3/PTS/CHK/16-17 30 50 95 25 2 45 <0.5 30 ---- 135 0.4

11 02/4/PTS/CHK/16-17 25 70 105 40 3 45 0.65 <25 --- 257 0.21

12 02/5/PTS/CHK/16-17 35 45 85 --- 1 --- <0.5 <25 <10 219 0.14

13 02/6/PTS/CHK/16-17 40 70 90 ---- 2 ---- 0.80 <25 <10 189 0.71

14 02/7/PTS/CHK/16-17 40 100 70 --- 2 --- <0.5 65 <10 318 0.39

15 02/8/PTS/CHK/16-17 135 90 55 --- 2 --- 6.04 720 <10 843 0.79

16 02/9/PTS/CHK/16-17 25 80 80 ---- 2 ---- <0.5 25 <10 1.17% 8.59

17 02/10/PTS/CHK/16-17 15 65 55 --- 1 --- <0.5 <25 <10 1.50% 0.26

18 02/11/PTS/CHK/16-17 25 80 75 --- 2 --- 1.26 260 <10 488 0.12

19 02/12/PTS/CHK/16-17 25 90 60 ---- 2 ---- <0.5 <25 <10 8688 2.22

20 02/13/PTS/CHK/16-17 35 60 55 --- 2 --- 3.71 470 <10 558 0.22

21 02/14/PTS/CHK/16-17 145 85 25 --- 2 --- 0.81 3.2ppm <10 1.10% 3.45

22 02/15/PTS/CHK/16-17 20 90 70 --- 2 --- <0.5 25 <10 2.98% 20.70

23 02/16/PTS/CHK/16-17 25 85 80 --- 2 --- <0.5 50 <10 1608 0.10

24 02/17/PTS/CHK/16-17 25 90 65 ---- 2 ---- <0.5 33 <10 1760 0.26

25 02/18/PTS/CHK/16-17 20 100 70 --- 3 --- <0.5 55 <10 1508 0.20

26 03/1/PTS/CHK/16-17 <10 20 30 --- <1 --- <0.5 <25 <10 1990 0.15

27 03/2/PTS/CHK/16-17 65 <10 30 ---- <1 ---- <0.5 <25 <10 123 0.03

28 03/3/PTS/CHK/16-17 <10 30 40 --- <1 --- <0.5 <25 <10 173 0.28

29 03/4/PTS/CHK/16-17 <10 <10 35 --- <1 --- <0.5 <25 <10 336 0.10

30 03/5/PTS/CHK/2016-27 10 20 35 ---- <1 ---- <0.5 30 <10 148 0.17

31 03/6/PTS/CHK/16-17 <10 25 30 --- <1 --- <0.5 <25 <10 151 0.13

32 03/7/PTS/CHK/16-17 <10 30 30 --- <1 --- <0.5 <25 <10 66 0.42

33 03/8/PTS/CHK/16-17 <10 35 30 ---- <1 ---- <0.5 <25 <10 129 0.52

34 03/9/PTS/CHK/16-17 <10 15 30 --- <1 --- <0.5 <25 <10 154 0.20

35 03/10/PTS/CHK/16-17 <10 25 40 --- <1 --- <0.5 <25 <10 138 0.30

36 03/11/PTS/CHK/16-17 <10 35 40 ---- <1 ---- 1.22 <25 <10 72 0.16

37 03/12/PTS/CHK/16-17 10 30 20 --- <1 --- <0.5 <25 <10 99 0.34

38 04/1/PTS/CHK/16-17 75 50 50 --- 1 --- <0.5 <25 <10 61 0.72

39 04/2/PTS/CHK/16-17 115 35 15 ---- <1 ---- <0.5 35 <10 491 1.06

40 04/3/PTS/CHK/16-17 <10 40 20 --- <1 --- <0.5 <25 <10 505 0.75

41 04/4/PTS/CHK/16-17 20 55 20 --- 1 --- <0.5 <25 <10 84 0.23

42 04/5/PTS/CHK/16-17 50 65 30 ---- 1 ---- <0.5 <25 <10 256 0.14

43 04/6/PTS/CHK/16-17 <10 55 40 --- 2 --- <0.5 <25 <10 282 1.13

44 04/7/PTS/CHK/16-17 <10 50 30 --- 1 --- <0.5 <25 <10 588 0.43

45 04/8/PTS/CHK/16-17 <10 35 15 ---- 1 ---- <0.5 <25 <10 249 <0.1

46 04/9/PTS/CHK/16-17 105 55 60 --- 2 --- <0.5 <25 <10 222 0.21

47 04/10/PTS/CHK/16-17 55 60 110 --- 2 --- <0.5 <25 <10 233 0.89

48 04/11/PTS/CHK/16-17 110 70 115 ---- 1 ---- <0.5 <25 <10 229 1.26

49 04/12/PTS/CHK/16-17 <10 45 5 --- 2 --- <0.5 <25 <10 176 0.72

50 04/13/PTS/CHK/16-17 80 85 40 --- <1 --- <0.5 <25 <10 131 0.26

ANNEXURE-IX

DESCRIPTIVE STATISTICS FOR TRENCH SAMPLES

Cu Pb Zn Ag Au As Bi Mo

Mean 33.00 48.90 44.40 1.40 0.12 1852.60 1.08 0.72

Standard Error 4.93 3.81 3.99 0.08 0.07 725.65 0.44 0.13

Median 20.00 45.00 35.00 1.00 0.03 220.50 0.29 0.50

Mode 10.00 30.00 30.00 1.00 0.03 256.00 0.20 0.50

Standard Deviation 34.88 26.96 28.22 0.53 0.46 5131.09 3.11 0.90

Sample Variance 1216.33 726.83 796.57 0.29 0.21 26328118.08 9.68 0.81

Kurtosis 2.86 -1.08 -0.27 -0.46 43.16 18.73 34.07 27.49

Skewness 1.90 0.34 0.82 0.84 6.42 4.09 5.62 5.13

Range 135.00 90.00 110.00 2.00 3.18 29739.00 20.67 5.54

Minimum 10.00 10.00 5.00 1.00 0.03 61.00 0.03 0.50

Maximum 145.00 100.00 115.00 3.00 3.20 29800.00 20.70 6.04

Sum 1650.00 2445.00 2220.00 70.00 6.06 92630.00 54.16 35.99

Count 50.00 50.00 50.00 50.00 50.00 50.00 50.00 50.00

CORRELATION MATRIX FOR TRENCH SAMPLES

Cu Pb Zn Ag Au As Bi Mo

Cu 1.00

Pb 0.39 1.00

Zn 0.23 0.62 1.00

Ag 0.18 0.65 0.44 1.00

Au 0.54 0.26 -0.07 0.23 1.00

As 0.05 0.40 0.19 0.25 0.23 1.00

Bi 0.03 0.32 0.19 0.26 0.09 0.87 1.00

Mo 0.38 0.25 0.10 0.24 0.26 -0.04 -0.04 1.00

ANNEXURE-X

BOREHOLE ANGLE DEVIATION DATA

BH No. BH

angle

Depth

(m)

Observed etched

angle (degree)

Determined

angle (degree)

Deviation in BH

angle (degree)

CBH-01 50°

0 - 50 0

30 58 49.5 -0.5

60 58 49.5 -0.5

80 60 52 2.0

CBH-02 50°

0 - 50 0

25 58 49.5 -0.5

50 57 52 2.0

75 58 49.5 -0.5

100 59.5 50.5 0.5

125 57.5 51.5 1.5

150 58 50 0

CBH-03

50° 0 - 50 0

30 58 49.5 -0.5

60 57 48 -2.0

90 59 50.5 0.5

120 57.5 51 1.0

142 57 48 -2.0

CBH-04

50° 0 - 50 0

20 58 49.5 -0.5

40 58 49.5 -0.5

60 57 48 2.0

80 57 48 2.0

CBH-05

50° 0 - 50 0

30 58 49.5 -0.5

60 57 48 -2.0

90 56.5 47.5 -2.5

120 57 48 -2.0

130 57 48 -2.0

CBH-06

50° 0 - 0

25 58 49.5 -0.5

50 57 48 -2.0

75 57 48 -2.0

100 56.5 47.5 -2.50

123 56.5 47.5 -2.50

CBH-07

50° 0 - 0

30 59 50 0

60 59 50 0

90 58 49.5 -0.5

120 57 48 -2.0

140 57 48 -2.0

ANNEXURE-XI

GEOCHEMICAL ANALYTICAL RESULTS OF PACKAGE A AND PACKAGE H

FOR GRID NO.24 AND 25 OF TOPOSHEET NO. 63L/11(after Bage et. al 2016)

All values in (ppm)

S. No. Be Ge Sn La Ce Pr Nd Eu Sm Tb

024 1.60 1.85 2.84 55.03 112.3 12.37 45.24 1.55 8.51 1.14

025 1.45 1.50 2.52 48.65 97.86 10.81 40.42 1.43 7.58 1.07

S. No Gd Dy Ho Er Tm Yb Lu Hf Ta U

24 7.53 6.55 1.24 3.56 0.55 3.33 0.53 9.09 1.73 3.66

25 6.81 6.23 1.18 3.40 0.53 3.22 0.51 8.33 1.61 3.23

S.No

. SiO2 Al2O3

Fe2

O3 TiO2 CaO

Mg

O

Mn

O

Na2

O

K2

O

P2

O5 Ba Co Cr

024 60.9 15.19 8.79 0.74 0.42 1.54 0.17 0.41

2.8

3

0.1

2 383 21 86

025 64.0 14.40 6.54 0.78 0.80 1.65 0.14 0.71

2.6

0

0.1

0 389 19 95

S

No. Cu Ga Nb Ni Pb Rb Sc Sr Th V Y Zn Zr

24 23 17 37 35 18 146 16 49 15 86 27 69 277

025 21 17 16 39 15 123 13 82 12 91 30 61 271

ANNEXURE-XII (A)

PETROCHEMICAL ANALYTICAL DATA OF CHAKARIYA BLOCK

Sample Location Rock type SiO2 Al2O3 Fe2O3 CaO MgO Na2O

Latitude (DMS) Longitude(DMS) (%) (%) (%)

01/PCS/CHK/2016-17 N 24° 17' 1.5'' E 82° 43' 42.7''

Tuffaceous

Phyllite 61.78 19.58 5.36 0.34 1.6 0.75

02/PCS/CHK/2016-17 N 24° 17' 1.5'' E 82° 43' 42.7''

Arenaceous

Phyllite 57.28 20.84 7.02 <0.3 1.98 0.18

03/PCS/CHK/2016-17 N 24° 17' 21.9'' E 82° 43' 15.2'' Scorodite 6.39 1.99 22.5 <0.3 7.32 <0.05

04/PCS/CHK/2016-17 N 24° 17' 1.5'' E 82° 43' 42.7'' Scorodite 14.35 0.93 23.28 0.57 6.51 <0.05

05/PCS/CHK/2016-17 N 24° 17' 13.7'' E 82° 43' 25.8'' Scorodite 7.48 0.76 28.24 1.65 6.73 <0.05

06/PCS/CHK/2016-17 N 24° 16' 36.2'' E 82° 42' 46.9''

Ferrugenous

Phyllite 49.85 11.97 21.89 0.89 2.1 <0.05

07/PCS/CHK/2016-17 N 24° 17' 21.5'' E 82° 43' 41.1'' Phyllite 54.17 22.39 7.93 <0.3 1.95 0.17

08/PCS/CHK/2016-17 N 24° 17' 9.5'' E 82° 43' 25.4''

Arenaceous

Phyllite 55.86 22 6.89 <0.3 1.99 0.19

09/PCS/CHK/2016-17 N 24° 17' 9.1'' E 82° 43' 29.7'' Scorodite 5.26 0.92 26.36 <0.3 7.02 <0.05

10/PCS/CHK/2016-17 N 24° 17' 8.7'' E 82° 43' 27.1'' Phyllite 50.44 27.99 4.7 <0.3 1.4 0.22

Cont..


Sample

Location Rock type K2O TiO2 P2O5 MnO Ba

Latitude (DMS) Longitude(DMS) (%) (%) (%) (%) (mg/Kg)

01/PCS/CHK/2016-17 N 24° 17' 1.5'' E 82° 43' 42.7''

Tuffaceous

Phyllite

2.91 0.53 0.05 0.15 800

02/PCS/CHK/2016-17 N 24° 17' 1.5'' E 82° 43' 42.7''

Arenaceous

Phyllite

6.19 0.6 0.12 0.07 782

03/PCS/CHK/2016-17 N 24° 17' 21.9'' E 82° 43' 15.2'' Scorodite 0.06 0.14 0.33 <0.04 119

04/PCS/CHK/2016-17 N 24° 17' 1.5'' E 82° 43' 42.7'' Scorodite 0.19 0.13 0.11 <0.04 184

05/PCS/CHK/2016-17 N 24° 17' 13.7'' E 82° 43' 25.8'' Scorodite <0.05 <0.1 0.25 <0.04 187

06/PCS/CHK/2016-17 N 24° 16' 36.2'' E 82° 42' 46.9''

Ferrugenous

Phyllite 0.87 0.41 0.15 0.22 244

07/PCS/CHK/2016-17 N 24° 17' 21.5'' E 82° 43' 41.1'' Phyllite 6.27 0.63 0.11 0.12 930

08/PCS/CHK/2016-17 N 24° 17' 9.5'' E 82° 43' 25.4''

Arenaceous

Phyllite 6.6 0.6 0.1 0.05 807

09/PCS/CHK/2016-17 N 24° 17' 9.1'' E 82° 43' 29.7'' Scorodite 0.08 <0.1 0.12 <0.04 125

10/PCS/CHK/2016-17 N 24° 17' 8.7'' E 82° 43' 27.1'' Phyllite 8.6 0.7 0.04 0.1 2408

Cont..


Sample Location Rock type Nb Sr Rb Y Zr

Latitude (DMS) Longitude(DMS) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg)

01/PCS/CHK/2016-17 N 24° 17' 1.5'' E 82° 43' 42.7''

Tuffaceous

Phyllite

11 36 124 16 218

02/PCS/CHK/2016-17 N 24° 17' 1.5'' E 82° 43' 42.7''

Arenaceous

Phyllite

14 34 286 24 154

03/PCS/CHK/2016-17 N 24° 17' 21.9'' E 82° 43' 15.2'' Scorodite <5 31 9 <10 24

04/PCS/CHK/2016-17 N 24° 17' 1.5'' E 82° 43' 42.7'' Scorodite <5 69 8 <10 14

05/PCS/CHK/2016-17 N 24° 17' 13.7'' E 82° 43' 25.8'' Scorodite <5 108 8 <10 <10

06/PCS/CHK/2016-17 N 24° 16' 36.2'' E 82° 42' 46.9''

Ferrugenous

Phyllite

10 43 49 10 81

07/PCS/CHK/2016-17 N 24° 17' 21.5'' E 82° 43' 41.1'' Phyllite 15 42 353 24 129

08/PCS/CHK/2016-17 N 24° 17' 9.5'' E 82° 43' 25.4''

Arenaceous

Phyllite

15 42 338 33 126

09/PCS/CHK/2016-17 N 24° 17' 9.1'' E 82° 43' 29.7'' Scorodite <5 47 9 <10 <10

10/PCS/CHK/2016-17 N 24° 17' 8.7'' E 82° 43' 27.1'' Phyllite 16 34 349 23 162

ANNEXURE-XII (B)

DESCRIPTIVE STATISTICS OF PETROCHEMICAL ANALYTICAL DATA OF CHAKARIYA BLOCK

Mean

Standard

Error Median Mode

Standard

Deviation

Sample

Variance Kurtosis Skewness Range Minimum Maximum Sum Count

SiO2 36.29 7.71 50.15 #N/A 24.37 593.93 -2.12 -0.45 56.52 5.26 61.78 362.86 10

Al2O3 12.94 3.44 15.78 #N/A 10.86 118.03 -1.99 -0.09 27.23 0.76 27.99 129.37 10

Fe2O3 15.42 3.08 14.91 #N/A 9.74 94.82 -2.24 0.10 23.54 4.70 28.24 154.17 10

CaO 0.44 0.16 0.15 0.15 0.49 0.24 3.94 2.01 1.50 0.15 1.65 4.35 10

MgO 3.86 0.83 2.05 #N/A 2.63 6.91 -2.19 0.48 5.92 1.40 7.32 38.60 10

Na2O 0.16 0.07 0.10 0.025 0.22 0.05 6.43 2.39 0.73 0.03 0.75 1.64 10

K2O 3.18 1.07 1.89 #N/A 3.39 11.48 -1.74 0.45 8.58 0.03 8.60 31.80 10

TiO2 0.38 0.08 0.47 0.6 0.26 0.07 -2.01 -0.27 0.65 0.05 0.70 3.84 10

P2O5 0.14 0.03 0.12 0.12 0.09 0.01 1.60 1.35 0.29 0.04 0.33 1.38 10

MnO 0.08 0.02 0.06 0.02 0.07 0.00 0.42 1.05 0.20 0.02 0.22 0.79 10

Ba 658.60 220.78 513.00 #N/A 698.15 487416.04 4.54 1.95 2289.00 119.00 2408.00 6586.00 10

Nb 9.10 1.89 10.50 2.5 5.96 35.54 -2.12 -0.19 13.50 2.50 16.00 91.00 10

Sr 48.60 7.42 42.00 34 23.48 551.16 4.89 2.19 77.00 31.00 108.00 486.00 10

Rb 153.30 50.06 86.50 9 158.29 25056.46 -2.11 0.38 345.00 8.00 353.00 1533.00 10

Y 15.00 3.29 13.00 5 10.41 108.44 -1.32 0.45 28.00 5.00 33.00 150.00 10

Zr 91.80 24.29 103.50 5 76.82 5901.29 -1.41 0.18 213.00 5.00 218.00 918.00 10

ANNEXURE-XII (C)

CORRELATION MATRIX OF PETROCHEMICAL ANALYTICAL DATA OF CHAKARIYA BLOCK

SiO2 Al2O3 Fe2O3 CaO MgO Na2O K2O TiO2 P2O5 MnO Ba Nb Sr Rb Y Zr

SiO2 1

Al2O3 0.92 1

Fe2O3 -0.89 -0.95 1

CaO -0.35 -0.47 0.59 1

MgO -0.99 -0.94 0.87 0.32 1

Na2O 0.62 0.55 -0.68 -0.26 -0.57 1

K2O 0.77 0.94 -0.90 -0.51 -0.80 0.35 1

TiO2 0.95 0.99 -0.95 -0.48 -0.96 0.52 0.92 1

P2O5 -0.66 -0.66 0.65 0.38 0.68 -0.54 -0.60 -0.64 1

MnO 0.71 0.52 -0.38 0.01 -0.73 0.41 0.24 0.57 -0.40 1

Ba 0.59 0.83 -0.76 -0.38 -0.67 0.38 0.86 0.77 -0.61 0.26 1

Nb 0.93 0.99 -0.92 -0.44 -0.95 0.45 0.93 0.99 -0.63 0.54 0.76 1

Sr -0.53 -0.56 0.61 0.87 0.51 -0.35 -0.47 -0.59 0.32 -0.38 -0.39 -0.54 1

Rb 0.77 0.92 -0.88 -0.51 -0.79 0.31 0.98 0.91 -0.56 0.24 0.78 0.94 -0.45 1

Y 0.83 0.91 -0.89 -0.49 -0.82 0.38 0.93 0.90 -0.56 0.26 0.65 0.93 -0.46 0.95 1

Zr 0.93 0.91 -0.94 -0.43 -0.91 0.82 0.76 0.90 -0.66 0.59 0.68 0.86 -0.58 0.73 0.75 1

ANNEXURE-XIII A

Summarised Litholog of B.H. No. GCD-1

Date of commencement - 28-Jun-99

Date of completion - 08-Oct-99

Angle of Inclination- 50° 140.00 m R.L. at Collar -385.586 m

Azimuth- N 23° E

Closing Depth- 140.00m R.L. at Collar- 385.586 m

Depth(m) Length Lithology+Mineralisation Rock Type

From To

0.00 5.00 5.00 Sludge with phyllitic partings Soil

5.00 24.80 19.80 Fragments of phyllite Phyllite

24.80 28.50 3.70 Arenaceous phyllite with QVG Ar. Phyllite

28.50 40.05 11.55 Arenite with QVs having

Py+CPy+Pyrr+APy Arenite

40.05 40.35 0.30 QVM-fractured with APy Quartz Vein

40.35 40.65 0.30 Arenite with QVM Arenite

40.65 59.50 18.85

Arenite hard, fractured and

brecciated with QVM having

Py + APY

Arenite

59.50 60.55 1.05

Brecciated arenite with dark

brown haloes; MZ - Py + CPY

+ APy

Arenite (MZ)

60.55 65.95 5.40

Arenite with thin layers of

Ferruginous Phyllite and chert.

and QVs; with Py+CPy+APy

Arenite

65.95 66.30 0.35 QVM with Py+CPy Quartz Vein

66.30 86.15 19.85 Arenite with QVM veins and

Py+CPy+Pyrr+APy Arenite

86.15 89.20 3.05 Arenite + QVM. MZ - APy +

CPy + Py Arenite

89.20 92.25 3.05 Arenite with APy+Py+CPy Arenite

92.25 95.50 3.25 Arenite+BIF; MZ - APy + CPy

+ Py Arenite + BIF

95.50 100.50 5.00 BIF with chert layers. MZ - Py

+ Pyrr + CPy + APy BIF (MZ)

100.50 104.70 4.20 BIF - Pyrr + APy + Py BIF

104.70 107.80 3.10 BIF with thin QVM. MZ - APy

+ Py + Pyrr BIF (MZ)

107.80 117.30 9.50 BIF - Pyrr + APy + Py BIF

117.30 119.15 1.85 BIF with QVM. MZ - APy +

Pyrr + Py BIF (MZ)

119.15 122.25 3.10 BIF + Arenite. MZ - APy + Pyrr BIF+Arenite (MZ)

+ Py

122.25 127.05 4.80 BIF with Pyrr + APy + Py BIF

127.05 130.45 3.40 Arenite showing strong mineral

lineation. Few APY + Py Arenite

130.45 132.00 1.55 Arenite + BIF. Py + APy + Pyrr Arenite+BIF

132.00 133.40 1.40 BIF with QVM. MZ - Pyrr + Py

+ CPy BIF (MZ)

133.40 140.00 6.60 BIF + Arenite with Pyrr + CPy Arenite+BIF

ANNEXURE-XIII B


Date of commencement - 18-Nov-99

Date of completion - 09-Mar-00

Azimuth- N 23° E

Angle of Inclination- 50°

Closing Depth- 155.60m

R.L. at Collar - 381.676 m


From To

0.00 2.00 2.00 Sludge+ fragments of phyllite Soil

2.00 7.80 5.80 Fragments of phyllite Phyllite

7.80 9.50 1.70 Hard and compact arenite Arenite

9.50 12.00 1.20 Dark grey sludge Soil

12.00 38.05 26.05 Arenite with QV. Py + Pyrr +

APy Arenite

38.05 41.15 3.10

Arenite + QVM - epidotized,

silicified and chloritized. MZ -

APy + Py + CPy

Arenite (MZ)

41.15 53.90 12.75 Arenite with pronounced ML +

QVM. CPy + APy + Py

Arenite (MZ of 80

cm at 49.75m and

85 cm at 51.50m)

53.90 56.00 2.10 Arenite + QVM. MZ - CPy + Py

+ APy Arenite (MZ)

56.00 71.50 15.50 Arenite + QVM. APy + Py Arenite

71.50 73.20 1.70 BIF + Arenite. MZ - APy + Pyrr

+ Py BIF+Arenite (MZ)

73.20 80.25 7.05 BIF. Pyrr + Py + APy BIF

80.25 80.95 0.70 BIF. MZ - APy + Pyrr + Py BIF (MZ)

80.95 89.25 8.30 BIF with thin QVs and arenite

bands. Pyrr + APy + Py BIF

89.25 90.85 1.60 Arenite traversed by QVM. Py +

CPy + APy Arenite

90.85 92.30 1.45 Arenite with thin phyllitic layers.

MZ - APy + Py Arenite (MZ)

92.30 92.45 0.15 BIF. MZ - APy + Py BIF (MZ)

92.45 94.10 1.65 BIF with thin arenite bands -Pyrr

+ Py BIF


95.35 100.45 5.10 BIF with QVM + QVW - Py +

Pyrr + less APy BIF

100.45 103.50 3.05 Arenite, sheared-Py Arenite

103.50 104.25 0.75 Arenite + BIF. Pyrr Arenite+BIF

104.25 106.40 2.15 Arenite + BIF. MZ - APy + Pyrr

+ Py Arenite+BIF (MZ)

106.40 110.55 4.15 Arenite + BIF + QV - Pyrr + Py +

Apy Arenite+BIF

110.55 111.05 0.50 QVM showing strong

epidotization. Pyrr + Py + APy Quartz Vein

111.05 116.90 5.85 Arenite + QVM. MZ - APy + Py

+ Pyrr

Arenite + Quartz

Vein (MZ)

116.90 128.35 11.45 Arenite traversed by QV - APy +

Py Arenite

128.35 133.25 4.90 Arenite + BIF. Py + CPy Arenite+BIF

133.25 136.50 3.25 Arenite traversed by QVM. Pyrr

+ Py + CPy

Arenite + Quartz

Vein

136.50 138.70 2.20 Arenite + BIF. Pyrr + APy + Py Arenite+BIF

138.70 140.70 2.00 Arenite + QVM + 20 cm BIF at

139.55m. MZ - Py + APy + Pyrr

Arenite + Quartz

Vein (MZ)

140.70 143.20 2.50 Arenite traversed by QVM -APy

+ Py + CPy

Arenite + Quartz

Vein

143.20 147.40 4.20 Arenite + QVM. MZ - Pyrr +

APy + Py + CPy

Arenite + Quartz

Vein (MZ)

147.40 155.60 8.20 Arenite traversed by QVM. Py Arenite + Quartz

Vein

ANNEXURE-XIII C


Date of

commencement - 06-Apr-00

Date of completion - 03-Jul-00

Angle of Inclination- 50° Annexure-2C

Azimuth- N 23° E

Closing Depth- 160.60m

R.L. at Collar -399.733m

Depth(m) Lithology+Mineralisation Rock Type

From To

0.00 2.00 2.00 Sludge Soil

2.00 6.00 4.00 Phyllite + QVM + QVG Phyllite

6.00 10.50 4.50 Sludge Soil

10.50 12.00 1.50 QVG Quartz Vein

12.00 17.00 5.00 Phyllite Phyllite

17.00 18.05 1.05 Sludge Soil


20.05 21.10 1.05 Sludge + Arenite Arenite

21.10 25.95 4.85 Sludge + Ferr.Phyllite Ferr.Phyllite

25.95 29.00 3.05 Sludge+Arenite Arenite

29.00 38.50 9.50 Arenaceous phyllite with

QVG

Arenaceous

Phyllite


42.05 43.45 1.40

Dark green coloured

Volcanic(?) rock + thin

QV

Volcanic

43.45 45.05 1.60 Hard arenite Arenite

45.05 49.70 4.65 Phyllite+sludge Phyllite

49.70 51.55 1.85 Arenaceous Phyllite Arenaceous

Phyllite

51.55 58.80 7.25

Dark green coloured

Volcanic(?) rock with

QVM at places

Volcanic

58.80 68.35 9.55 Arenite + QVM Arenite +

Quartrz

68.35 72.60 4.25 Arenite Arenite

72.60 77.15 4.55 Arenite + QVM. APy +

CPy in QVM

Arenite +

Quartrz


83.30 86.05 2.75 Arenite + QVM. MZ - Py

+ CPy + APy

Arenite +

Quartrz (MZ)


94.05 95.60 1.55 Arenite + QVM. MZ - Py

+ Pyrr + APy

Arenite +

Quartrz (MZ)


100.15 103.35 3.20 Arenite + QVM. MZ -

APy + Py + CPy

Arenite +

Quartrz (MZ)

103.35 106.05 2.70 Arenite- rare CPy + APy Arenite

106.05 110.00 3.95 Arenite + BIF Arenite + BIF

110.00 110.85 0.85 BIF - Pyrr BIF

110.85 113.35 2.50 BIF. MZ - Pyrr + APy BIF (MZ)

113.35 133.55 20.20 BIF with QVM. Pyrr +

APy + Py BIF

133.55 135.10 1.55 BIF. MZ - Pyrr + Py +

CPy + APy BIF (MZ)

135.10 137.00 1.90 BIF - Pyrr BIF

137.00 137.80 0.80 BIF + Arenite BIF + Arenite



153.65 156.65 3.00 Arenite + QVM. Pyrr +

CPy + Py Arenite

156.65 157.20 0.55 BIF + Arenite. MZ - APy

+ Pyrr + Py

BIF + Arenite

(MZ)

157.20 157.50 0.30 Arenite. MZ - APy + Pyrr

+ Py Arenite (MZ)

157.50 159.90 2.40 Arenite + QVM Arenite


ANNEXURE-XIII D


Date of commencement - 04-Aug-00

Date of completion - 10-Nov-00


Azimuth- N 23° E

Closing Depth - 160.15m R.L. at Collar -391.024m


From To

0.00 1.00 1.00 Sludge Soil

1.00 13.80 12.80 Greyish white phyllite, ML

pronounced Phyllite


25.20 27.00 1.80 Arenite+QVM Arenite+Quartz




45.20 46.70 1.50 Fractured arenite+QVM Arenite+Quartz

46.70 50.95 4.25 Arenite+thin phyllite Arenite



56.60 57.20 0.60 Breccaited Arenite. MZ - Py + APy Arenite (MZ)

57.20 58.35 1.15 Arenite + QVM. MZ - Py + APy Arenite + Quartz

(MZ)


59.35 60.50 1.15 Arenite + QVM. MZ - APy + Py Arenite + Quartz

(MZ)


75.00 83.95 8.95 Arenite + QV. MZ - APy + Py + CPy Arenite (MZ)

83.95 84.35 0.40 Arenite+BIF Arenite+BIF

84.35 87.60 3.25 BIF. MZ - APy + Py + Pyrr BIF (MZ)

87.60 96.00 8.40 BIF. Pyrr + Py BIF


99.00 102.70 3.70 BIF. APy + Pyrr + Py BIF

102.70 103.70 1.00 Arenite +BIF+QVM-Pyrr+Py Arenite+BIF


104.80 111.25 6.45 BIF-Pyrr BIF

111.25 122.80 11.55 Arenite + BIF + QV Arenite+BIF


123.45 127.00 3.55 Arenite + QV. MZ - APy Arenite (MZ)


134.65 138.45 3.80 Arenite+BIF-APy chunks+Pyrr Arenite+BIF


148.90 151.15 2.25 Arenite. MZ - APy + Py Arenite (MZ)

151.15 153.25 2.10 Arenite + QV. Pyrr Arenite+Quartz


ANNEXURE-XIII E


Date of commencement - 04-Dec-00

Date of completion - 05-Mar-01


Azimuth- N 23° E

Closing Depth - 161.3 R.L. at Collar -379.746m


From To

0.00 1.75 1.75 Sludge Soil

1.75 3.00 1.25 Fragments of QVM Quartz

3.00 4.00 1.00 Sludge Soil


5.00 7.50 2.50 Sludge Soil



18.05 31.05 13.00 Arenaceous Phyllite + QVM Phyllite

31.05 35.35 4.30 Dark grey phyllitic rock(?) - Py +

APy Phyllite

35.35 43.55 8.20 Arenite-APy+Py Arenite

43.55 44.55 1.00 Arenite. MZ - APy Arenite (MZ)

44.55 85.20 40.65 Arenite + QVM. APy + Py + Pyrr Arenite

85.20 85.60 0.40 QVM. MZ - Py + APy Quartz Vein (MZ)

85.60 91.70 6.10 Arenite + QVM. Py + APy Arenite

91.70 92.75 1.05 Arenite + Phyllite. Py + Pyrr Arenite + Phyllite

92.75 94.70 1.95 BIF. MZ - Pyrr + APy BIF (MZ)

94.70 109.40 14.70 BIF. Py + Pyrr + APy BIF

109.40 118.00 8.60 BIF + Arenite. Pyrr + Py BIF + Arenite


123.85 137.00 13.15 Arenite + BIF. APy + Pyrr Arenite + BIF

137.00 139.15 2.15 BIF + Arenite BIF+Arenite

139.15 144.00 4.85 Arenite + BIF + QVG. APy + Py Arenite + BIF

144.00 161.30 17.30 Arenite + QVG. Py + Pyrr + Rare

APy Arenite + Quartz

ANNEXURE-XIII F


Date of commencement - 11.03.2001

Date of completion - 08.04.2001


Azimuth- N 23° E



From To

0.00 11.10 11.10 Sludge Soil


15.00 16.00 1.00 Sludge Soil


17.50 18.00 0.50 QVG Quartz


31.15 39.60 8.45 Sheared Arenite Arenite

39.60 70.00 30.40 Arenite. Py + APy Arenite

70.00 71.30 1.30 Arenite + Phyllite with carbonate

spots Arenite+Phyllite

71.30 72.70 1.40 Arenite + Phyllite + QV. MZ -

APy + Pyrr + Py

Arenite + Phyllite

(MZ)

72.70 76.20 3.50 Arenite+Phyllite-Pyrr Arenite+Phyllite

76.20 81.50 5.30 Arenite. APy + Py Arenite


83.95 85.60 1.65 Arenite + QV Arenite

85.60 90.35 4.75 Arenite + Phyllite + QV. MZ - Py

+ Pyrr + APy

Arenite + Phyllite

(MZ)



98.45 101.45 3.00 Arenite + Phyllite + QV. Py +

APy Arenite + Phyllite


101.85 108.15 6.30 Arenite + Phyllite. Pyrr Arenite + Phyllite

108.15 152.40 44.25 Arenite + QV. Pyrr + Py + APy at

places Arenite

152.40 156.00 3.60 Arenite + BIF. Pyrr Arenite + BIF

156.00 172.20 16.20 BIF. Pyrr + APy BIF

172.20 175.20 3.00 Arenite. Pyrr Arenite

ANNEXURE-XIII G





Azimuth- N 23° E


Depth (m) Length Lithology+Mineralisation Rock Type

From To

0.00 2.00 2.00 Sludge Soil

2.00 2.25 0.25 fragments of QVW Quartz

2.25 3.80 1.55 sludge Soil

3.80 4.00 0.20 fragments of QVM Quartz

4.00 12.35 8.35 Arenaceous phyllite Phyllite

12.35 17.10 4.75 Ferruginous Phyllite Phyllite

17.10 20.15 3.05 Arenaceous phyllite with minor

shear Phyllite




29.20 36.40 7.20 Arenaceous Phyllite + thin QVG Phyllite

36.40 40.60 4.20 Arenite+Phyllite-APy+Py Arenite+ phyllite

40.60 48.80 8.20 Arenite + QV. APy + Py + Pyrr Arenite + Quartz

48.80 51.40 2.60 Highly sheared and brecciated

Arenite. APy + Py + Pyrr Arenite

51.40 53.30 1.90 Arenite + QVW. APy + CPy +

Py Arenite + Quartz

53.30 54.55 1.25 QVM. MZ - APy + Pyrr + Py Quartz (MZ)

54.55 58.65 4.10 Sheared Arenite + QVG +

QVM. MZ - APy + Py Arenite (MZ)

58.65 61.35 2.70 Phyllite + Arenite. Py + Pyrr Phyllite + Arenite

61.35 61.55 0.20 QVW. Py Quartz

61.55 66.90 5.35 BIF + Arenite. MZ - Pyrr + Py +

APy + CPy

BIF + Arenite

(MZ)

66.90 74.50 7.60 Arenite + BIF + QVM. APy +

Pyrr + Py Arenite + BIF

74.50 77.20 2.70 BIF + Arenite. MZ - Pyrr + Py BIF+Arenite

(MZ)

77.20 80.20 3.00 Arenite + QV. MZ - APy + Py Arenite + Quartz

(MZ)

80.20 80.70 0.50 Arenite. Pyrr + Py Arenite

80.70 83.20 2.50 BIF + Arenite. MZ - Pyrr + Py BIF+Arenite

(MZ)

83.20 85.70 2.50 Arenite + BIF + QVW. Pyrr +

Py Arenite + BIF

85.70 92.35 6.65 Arenite + chert + QVG. Py +

APy Arenite

92.35 94.90 2.55 Arenite + Phyllite + QVG. MZ -

APy + Pyrr

Arenite + Phyllite

(MZ)

ANNEXURE-XIII H





Azimuth- N 23° E

Closing Depth 153.15m R.L. at Collar -378.78m


From To

6.10 6.10 Sludge+ fragments of phyllite

+ quartz Soil

6.50 0.40 Arenaceous Phyllite(A.Ph) Arenaceous Phyllite

7.75 1.25 Fragments of QVM. APy +

CPy Quartz

14.10 6.35 Arenaceous Phyllite with ML Arenaceous Phyllite

15.10 1.00 QVM Quartz

18.20 3.10 Arenaceous Phyllite Arenaceous Phyllite


27.00 8.50 Arenaceous Phyllite Arenaceous Phyllite


28.30 1.10 A.Ph Arenaceous Phyllite

28.50 0.20 Sheared QVM Quartz

30.60 2.10 Sheraed A.Ph Arenaceous Phyllite

33.70 3.10 Arenite Arenite

37.30 3.60 A.Ph Arenaceous Phyllite

39.70 2.40 Phyllite + QVM. Py + Pyrr Phyllite

40.70 1.00 Phyllite + Arenite. Py Phyllite + Arenite

45.35 4.65 Arenite with carbonate grains Arenite

46.80 1.45 Phyllite + Arenite + QVM Phyllite + Arenite

48.80 2.00 Phyllite + Arenite + QVM.

MZ - APy + Pyrr + Py Phyllite + Arenite (MZ)

51.50 2.70 Arenite + Phyllite. Py + APy Arenite + Phyllite

52.40 0.90 Phyllite + Arenite + QVM.

MZ - APy + Py Phyllite + Arenite (MZ)

54.00 1.60 Arenite. APy + Py Arenite

59.30 5.30 Arenite + Phyllite + QVM

Pyrr + Py Arenite + Phyllite

65.70 6.40 Phyllite + Arenite. Py + Pyrr

+ APy Phyllite + Arenite

68.30 2.60 Arenite. Py Arenite

70.00 1.70 Arenite. MZ - APy + Py Arenite (MZ)

72.95 2.95 Arenite + Phyllite (sheared).

APy + Pyrr Arenite + Phyllite

73.85 0.90 Arenite + chert. APy + Py +

Pyrr altering to marcasite Arenite

74.30 0.45 Arenite + phyllite. Pyrr + Py

+ APy Arenite + Phyllite

77.55 3.25 Arenite. Pyrr + Py + APy Arenite

79.35 1.80 Arenite + phyllite. Arenite + Phyllite

94.50 15.15 Arenite. Py + APy Arenite

100.00 5.50 Arenite + Phyllite + QVW.

MZ - Py + APy Arenite (MZ)

103.70 3.70 Arenite + thin QVG. Py +

APy Arenite

106.00 2.30 Arenite + Phyllite. Py + Pyrr

+ APy Arenite + Phyllite

115.70 9.70 Arenite. Py Arenite

117.10 1.40 BIF + Arenite. Pyrr + Py BIF + Arenite

127.35 10.25 BIF. Pyrr + Py BIF

142.45 15.10 BIF + Arenite. Pyrr + Py BIF + Arenite

147.55 5.10 Arenite. Py + APy + Pyrr Arenite

148.65 1.10 Arenite + phyllite. Pyrr +

APy Arenite + Phyllite

149.65 1.00 Arenite with thin argillaceous

layer. - APy Arenite

153.15 3.50 Arenite + phyllite. Pyrr Arenite + Phyllite

ANNEXURE-XIII I





Azimuth- N 23° E

Total Depth - 121.1 R.L. at Collar -374.386m


From To

0.00 6.00 6.00 Sludge Soil

6.00 9.00 3.00 Fragments of QVM with

tourmaline crystals Quartz


19.50 19.65 0.15 QVG Quartz

19.65 21.00 1.35 Ferruginous Phyllite. Pyrr + xls

of APy Phyllite

21.00 26.00 5.00 Arenite with argillaceous parting

+ QVM. xls of APy Arenite

26.00 28.00 2.00 Arenite. MZ - APy + Py Arenite (MZ)

28.00 30.10 2.10 Arenite with argillaceous

partings. APy + Py + Pyrr Arenite

30.10 31.95 1.85 Phyllite + Arenite. Pyrr + Py +

APy Phyllite + Arenite

31.95 36.30 4.35 Arenite with QVM. Pyrr + Py +

APy Arenite

36.30 37.50 1.20 BIF. Pyrr + Py BIF

37.50 40.85 3.35 Arenite + Phyllite. Pyrr + Py Arenite + Phyllite


41.70 44.60 2.90 Arenite + Phyllite. Pyrr + Py Arenite + Phyllite

44.60 48.05 3.45 Arenite with thin QVG. Pyrr +

Py Arenite + Quartz

48.05 48.30 0.25 QVG Quartz

48.30 51.20 2.90 Arenite + QVG. Pyrr + APy +

Py Arenite + Quartz

51.20 52.20 1.00 Phyllite + Arenite + QVM. Pyrr

+ Py + APy Phyllite + Arenite

52.20 52.80 0.60 Arenite. APy + Py Arenite

52.80 55.20 2.40 Phyllite + Arenite + QVM. APy

+ Py + Pyrr Phyllite + Arenite

55.20 56.90 1.70

Arenite with thin phyllitic

partings + thin QVG. Pyrr + Py

+ APy

Arenite + Phyllite

56.90 60.90 4.00 BIF + Arenite. Pyrr + Py BIF + Arenite

60.90 62.30 1.40 Arenite + BIF + thin QVG. Pyrr

+ Py Arenite + BIF


69.70 77.70 8.00 Arenite + QVG. Py + APy Arenite + Quartz

77.70 79.00 1.30 Arenite + Phyllite + QVG. APy

+ Py Arenite + Phyllite

79.00 110.15 31.15 Arenite + QV + Chert. APy + Py

+ CPy Arenite + Quartz

110.15 113.20 3.05 BIF + Arenite + QVM. MZ -

Pyrr + Py

BIF + Arenite

(MZ)

113.20 117.85 4.65 BIF. MZ - APy + Pyrr BIF (MZ)

117.85 121.10 3.25 BIF. Pyrr BIF

ANNEXURE-XIV-A

GEOCHEMICAL ANALYTICAL RESULTS OF CORE SAMPLES FROM CHAKARIYA BLOCK, SINGRAULI

All values in (ppm) except value mentioned in unit (1%=10,000 ppm)

S.

No. Sample Nos. Cu

Au Pb Zn Ni Co Ag Mo As Bi

(ICPMS) (AAS-HG)

1

001/CS/CBH01/2016-

17/JBP 50 340 65 25 30 35 2

<0.5 1.50% 38.41

2

002/CS/CBH01/2016-

17/JBP 0.69% 0.610 ppm 95 45 30 45 7

<0.5 4965 7.61

3

003/CS/CBH01/2016-

17/JBP 0.36% 410 80 30 25 55 5

<0.5 7500 8.52

4

004/CS/CBH01/2016-

17/JBP 435 3.10 ppm 100 15 65 140 2

<0.5 3.10% 10.19

5

005/CS/CBH01/2016-

17/JBP 75 210 65 15 <10 20 1

<0.5 950 1.91

6

006/CS/CBH01/2016-

17/JBP 405 2.11 ppm 55 20 35 420 2

<0.5 5.00% 20.34

7

007/CS/CBH01/2016-

17/JBP 145 8.12 ppm 25 10 30 350 2

<0.5 5.10% 276.73

8

008/CS/CBH01/2016-

17/JBP 285 300 50 25 35 25 2

<0.5 1180 2.50

9

009/CS/CBH01/2016-

17/JBP 330 180 80 45 55 40 2

<0.5 3080 2.54

10

010/CS/CBH01/2016-

17/JBP 65 40 95 95 25 40 4

<0.5 97 0.67

11 011/CS/CBH01/2016- 55 2.04 ppm 85 15 <10 30 2 <0.5 3% 2.88

17/JBP

12

012/CS/CBH01/2016-

17/JBP 50 140 110 80 35 55 3

<0.5 1060 0.29

13

013/CS/CBH01/2016-

17/JBP 460 3.21 ppm 80 45 45 105 4

<0.5 1.50% 4.37

14

014/CS/CBH01/2016-

17/JBP 130 130 35 50 40 45 3

<0.5 2500 0.66

15

015/CS/CBH01/2016-

17/JBP 40 45 65 35 30 30 2

<0.5 120 0.14

16

016/CS/CBH02/2016-

17/JBP 25 <25 65 50 20 40 1

2.601 90 <0.1

17

017/CS/CBH02/2016-

17/JBP 55 <25 90 70 25 40 2

<0.5 89 0.17

18

018/CS/CBH02/2016-

17/JBP 110 <25 75 80 45 65 3

<0.5 81 0.70

19

019/CS/CBH02/2016-

17/JBP 55 190 35 80 45 45 2

1.97 68 0.29

20

020/CS/CBH02/2016-

17/JBP 155 30 45 100 50 60 3

37.60 83 0.98

21

021/CS/CBH02/2016-

17/JBP 35 60 55 70 15 25 2

<0.5 61 <0.1

22

022/CS/CBH02/2016-

17/JBP 15 40 75 50 <10 25 2

<0.5 48 <0.1

23

023/CS/CBH02/2016-

17/JBP 210

<25

105 115 45 50 3

<0.5 50 0.51

24

024/CS/CBH02/2016-

17/JBP 235

290

85 25 15 25 2

<0.5 103 4.84

25

025/CS/CBH02/2016-

17/JBP 450

<25

60 40 20 20 1

<0.5 1650 0.32

26

026/CS/CBH02/2016-

17/JBP 0.18% 180 25 40 30 15 3

<0.5 2670 2.50

27 027/CS/CBH02/2016- 125 <25 20 25 <10 <10 1 <0.5 3200 0.76

17/JBP

28

028/CS/CBH02/2016-

17/JBP 120 110 55 30 <10 <10 <1

<0.5 2350 0.94

29

029/CS/CBH02/2016-

17/JBP 285 50 90 40 15 15 2

<0.5 2510 0.29

30

030/CS/CBH02/2016-

17/JBP 0.13% 330 130 45 25 20 3

<0.5 809 14.93

31

031/CS/CBH02/2016-

17/JBP 55 <25 120 70 45 20 2

<0.5 114 0.79

32

032/CS/CBH02/2016-

17/JBP 55 <25 70 60 20 20 2

<0.5 870 0.14

33

033/CS/CBH02/2016-

17/JBP 420 <25 25 105 45 35 3

<0.5 123 0.28

34

034/CS/CBH02/2016-

17/JBP 235 25 50 90 35 30 3

<0.5 1991 0.75

35

035/CS/CBH02/2016-

17/JBP 570 <25 95 110 40 20 3

<0.5 509 0.34

36

036/CS/CBH02/2016-

17/JBP 555 380 105 50 25 25 3

<0.5 1.10% 5.53

37

037/CS/CBH02/2016-

17/JBP 55 <25 150 130 45 30 5

<0.5 74 0.16

38

038/CS/CBH02/2016-

17/JBP 650 1.91 ppm 105 180 25 25 2

<0.5 1900 0.42

39

039/CS/CBH02/2016-

17/JBP 940 55 45 15 20 120 3

<0.5 3.30% 6.04

40

040/CS/CBH02/2016-

17/JBP 360 <25 55 60 15 <10 2

<0.5 1590 0.36

41

041/CS/CBH02/2016-

17/JBP 185 1.11 ppm 100 65 15 10 3

<0.5 1730 0.76

42

042/CS/CBH02/2016-

17/JBP 1.32% 125 210 190 60 35 28

<0.5 1170 21.85

43 043/CS/CBH02/2016- 0.18% 115 95 50 <10 10 4 <0.5 2350 1.87

17/JBP

44

044/CS/CBH02/2016-

17/JBP 370 55 105 25 10 15 2

<0.5 2345 2.08

45

045/CS/CBH02/2016-

17/JBP 320 195 110 50 20 25 2

<0.5 1980 4.48

46

046/CS/CBH02/2016-

17/JBP 165 120 40 55 30 15 3

<0.5 390 1.64

47

047/CS/CBH02/2016-

17/JBP 80 <25 10 25 10 <10 2

<0.5 230 0.17

48

048/CS/CBH02/2016-

17/JBP 115 25 65 45 20 10 2

<0.5 2620 0.78

49

049/CS/CBH03/2016-

17/JBP <10 <25 95 40 30 15 2

<0.5 122 0.36

50

050/CS/CBH03/2016-

17/JBP 265 25 110 60 15 15 3

<0.5 2650 0.52

51

051/CS/CBH03/2016-

17/JBP 35 <25 40 25 <10 25 <1

<0.5 2225 0.15

52

052/CS/CBH03/2016-

17/JBP 10 <25 75 40 25 90 <1

<0.5 1% 0.57

53

053/CS/CBH03/2016-

17/JBP 35 <25 95 25 <10 20 <1 <0.5 210 <0.1

54

054/CS/CBH03/2016-

17/JBP 25 1.22 ppm 90 30 105 510 2 <0.5 10% 56.98

55

055/CS/CBH03/2016-

17/JBP 10 40 25 40 20 20 <1 <0.5 780 0.31

56

056/CS/CBH03/2016-

17/JBP 10 <25 20 40 15 15 1 <0.5 1400 0.55

57

057/CS/CBH03/2016-

17/JBP 205 30 65 50 <10 25 2 <0.5 1060 0.67

58

058/CS/CBH03/2016-

17/JBP 760 1.02 ppm 110 105 300 85 4 <0.5 1% 25.05

59 059/CS/CBH03/2016- 690 310 125 70 35 90 3 <0.5 1.20% 2.59

17/JBP

60

060/CS/CBH03/2016-

17/JBP 20 35 100 80 43 35 2 <0.5 235 0.10

61

061/CS/CBH03/2016-

17/JBP 175 70 60 35 10 20 1 <0.5 1505 1.74

62

062/CS/CBH04/2016-

17/JBP 0.17% 1.41 ppm 40 60 40 55 5 <0.5 2360 5.37

63

063/CS/CBH04/2016-

17/JBP 60 40 60 35 <10 25 1 <0.5 100 0.33

64

064/CS/CBH04/2016-

17/JBP 20 <25 85 25 <10 20 1 <0.5 197 0.14

65

065/CS/CBH04/2016-

17/JBP 25 <25 90 50 <10 20 1 <0.5 186 <0.1

66

066/CS/CBH04/2016-

17/JBP 0.14% 50 90 55 50 35 4 <0.5 423 9.04

67

067/CS/CBH05/2016-

17/JBP 60 30 50 105 40 80 3 <0.5 209 1.15

68

068/CS/CBH05/2016-

17/JBP 125 <25 15 75 20 30 2 <0.5 130 <0.1

69

069/CS/CBH05/2016-

17/JBP 55 <25 65 90 30 35 2 <0.5 131 <0.1

70

070/CS/CBH05/2016-

17/JBP 210 <25 65 55 25 20 2 0.57 2230 0.31

71

071/CS/CBH05/2016-

17/JBP 155 <25 100 45 <10 30 6 <0.5 2895 0.32

72

072/CS/CBH05/2016-

17/JBP 40 <25 80 45 <10 30 <1 <0.5 1980 <0.1

73

073/CS/CBH05/2016-

17/JBP 10 <25 45 30 <10 20 <1 <0.5 97 <0.1

74

074/CS/CBH05/2016-

17/JBP 15 <25 30 25 10 <10 2 <0.5 58 <0.1

75 075/CS/CBH05/2016- 10 <25 45 35 10 10 <1 <0.5 144 0.12

17/JBP

76

076/CS/CBH05/2016-

17/JBP 340 <25 85 55 25 55 2 <0.5 2117 0.34

77

077/CS/CBH05/2016-

17/JBP 125 30 95 50 <10 25 1 <0.5 121 0.49

78

078/CS/CBH05/2016-

17/JBP 170 <25 90 40 <10 30 2 <0.5 2700 0.76

79

079/CS/CBH05/2016-

17/JBP 115 40 45 35 <10 30 1 <0.5 3880 0.74

80

080/CS/CBH05/2016-

17/JBP 10 <25 60 15 <10 10 2 <0.5 100 <0.1

81

081/CS/CBH05/2016-

17/JBP 10 75 100 25 15 55 1 <0.5 2000 4.21

82

082/CS/CBH06/2016-

17/JBP 15 <25 135 65 15 35 1 <0.5 210 <0.1

83

083/CS/CBH06/2016-

17/JBP 10 35 105 55 25 40 1 <0.5 80 <0.1

84

084/CS/CBH06/2016-

17/JBP 35 <25 135 55 45 40 1 <0.5 250 0.32

85

085/CS/CBH06/2016-

17/JBP 55 <25 40 55 30 35 1 <0.5 260 <0.1

86

086/CS/CBH06/2016-

17/JBP 15 <25 175 75 30 30 1 <0.5 105 0.11

87

087/CS/CBH06/2016-

17/JBP 15 <25 125 45 20 25 <1 <0.5 65 <0.1

88

088/CS/CBH06/2016-

17/JBP 175 <25 215 100 30 40 2 <0.5 64 0.13

89

089/CS/CBH06/2016-

17/JBP 60 <25 55 90 25 35 1 <0.5 97 <0.1

90

090/CS/CBH06/2016-

17/JBP 40 115 55 30 <10 20 1 <0.5 230 0.28

91 091/CS/CBH06/2016- 105 25 100 40 30 35 1 <0.5 180 0.43

17/JBP

92

092/CS/CBH06/2016-

17/JBP 130 210 105 25 20 25 1 <0.5 135 11.75

93

093/CS/CBH06/2016-

17/JBP 25 95 145 20 25 35 1 <0.5 120 1.13

94

094/CS/CBH06/2016-

17/JBP 20 <25 115 30 35 30 1 0.93 150 <0.1

95

095/CS/CBH06/2016-

17/JBP 4.18% 380 110 770 750 85 8 <0.5 105 15.51

96

096/CS/CBH07/2016-

17/JBP 275 175 45 85 30 50 2 <0.5 275 0.97

97

097/CS/CBH07/2016-

17/JBP 140 <25 280 75 45 25 1 <0.5 264 0.19

98

098/CS/CBH07/2016-

17/JBP 15 <25 125 25 40 <10 <1 <0.5 85 <0.1

99

099/CS/CBH07/2016-

17/JBP 770 125 55 55 80 85 3 <0.5 80 2.04

100

100/CS/CBH07/2016-

17/JBP 30 <25 30 50 <10 10 <1 <0.5 930 0.19

ANNEXURE-XIV-B

DESCRIPTIVE STATISTICS OF CORE SAMPLES


Mean 887.65 81.45 61.20 36.58 46.45 2.43 4592.30 6.01 0.91 0.33

Standard Error 440.66 4.33 7.84 7.88 7.24 0.29 1314.29 2.85 0.37 0.10

Median 117.50 80.00 50.00 25.00 30.00 2.00 644.50 0.52 0.50 0.03

Mode 10.00 65.00 25.00 10.00 20.00 2.00 97.00 0.10 0.50 0.03

Standard

Deviation 4406.61 43.27 78.44 78.83 72.35 2.90 13142.88 28.49 3.71 0.98

Sample Variance 19418254.78 1871.87 6152.59 6214.29 5235.00 8.43 172735372.25 811.82 13.80 0.96

Kurtosis 77.34 4.48 68.64 70.25 26.01 61.76 30.49 84.51 99.01 41.88

Skewness 8.50 1.47 7.67 8.02 4.90 7.16 5.08 8.92 9.93 5.87

Range 41790.00 270.00 760.00 740.00 500.00 27.00 99952.00 276.63 37.10 8.10

Minimum 10.00 10.00 10.00 10.00 10.00 1.00 48.00 0.10 0.50 0.03

Maximum 41800.00 280.00 770.00 750.00 510.00 28.00 100000.00 276.73 37.60 8.12

Sum 88765.00 8145.00 6120.00 3658.00 4645.00 243.00 459230.00 601.19 91.17 33.01

Count 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00

ANNEXURE-XIV-C

CORRELATION MATRIX OF CORE SAMPLES


Cu 1.00

Pb 0.15 1.00

Zn 0.91 0.19 1.00

Ni 0.88 0.13 0.89 1.00

Co 0.05 -0.05 0.00 0.17 1.00

Ag 0.49 0.29 0.38 0.26 0.03 1.00

As -0.03 -0.07 -0.13 0.07 0.91 0.00 1.00

Bi 0.05 -0.09 -0.03 0.09 0.58 0.07 0.54 1.00

Mo -0.02 -0.09 0.05 0.02 0.02 0.02 -0.04 -0.02 1.00

Au 0.01 -0.09 -0.05 0.07 0.59 0.04 0.58 0.83 -0.03 1.00

Annexure-XV-A: Spot values in % for EPMA sections for Sulphide phases.

FileName : Gladson- 05- BSE-1- Points 1 to 20

Weight

%

DataSet/Poin


1 / 1 . 5.77 63.37 5.02 5.88 0.01 0.01 0 0 14.57 2.91 0 0 97.55

2 / 1 . 0.08 0 98.08 2.21 0 0.06 0 0 0 0.07 0.07 0 100.57

3 / 1 . 40.77 0 0.09 35.1 0.04 0 0.03 0.01 0 21.82 0 0 97.86

4 / 1 . 41.24 0 0.01 35.61 0 0 0 0 0 21.96 0 0 98.83

5 / 1 . 43.26 0 0.01 34.87 0.16 0.04 0 0 0 19.96 0 0 98.31

6 / 1 . 40.89 0 0 34.82 0 0.03 0.03 0.04 0.01 22.01 0.02 0 97.85

7 / 1 . 43.05 0 0.01 34.83 0.16 0 0.04 0 0.01 20.42 0.05 0 98.58

8 / 1 . 43.33 0 0 34.74 0 0 0 0.02 0 20.21 0 0 98.3

9 / 1 . 41.13 0 0 35.45 0 0 0.06 0 0 21.99 0.02 0 98.65

10 / 1 . 42.26 0 0.02 34.83 0.03 0.02 0 0 0 21.07 0 0 98.23

11 / 1 . 29.51 0.11 30.47 24.93 0.16 0.02 0 0 0 13.35 0.06 0 98.61

12 / 1 . 41.8 0 1.12 35.11 0.04 0.01 0 0 0 21.69 0.02 0 99.78

13 / 1 . 41.81 0 0.12 35.64 0 0.02 0.11 0 0 21.1 0 0 98.8

14 / 1 . 40.41 0 0 35.47 0 0.06 0 0.05 0 22.23 0.08 0 98.31

15 / 1 . 41.55 0 0 35.49 0.04 0 0 0.03 0.06 21.81 0.07 0 99.04

16 / 1 . 41.84 0 0 34.93 0 0 0.07 0.01 0 21.52 0.03 0 98.4

17 / 1 . 42.52 0 0.06 35.44 0.03 0 0 0 0 21.65 0 0 99.7

18 / 1 . 42.48 0 0.07 34.92 0.04 0.08 0 0.01 0 21.26 0.03 0 98.89

19 / 1 . 42.06 0 0.04 35.19 0.04 0 0.04 0.05 0 21.46 0 0 98.88

20 / 1 . 41.73 0 0 35.4 0.02 0 0 0.07 0 21.11 0 0 98.33

Annexure-XV-B: Spot values in % for EPMA sections for Sulphide phases in slide no. 04.

Weight%


1 / 1 . 44.17 0 0.1 34.14 0.09 0.02 0.03 0.01 0 19.65 0 0 98.21

2 / 1 . 0 0 0.02 58.09 0 0 0.04 0 0 39.75 0 0 97.91

3 / 1 . 44.36 0 0.07 34.95 0 0 0 0.01 0 19.93 0 0 99.33

4 / 1 . 44.41 0 0.02 34.01 0.03 0.3 0.04 0.01 0 19.82 0.02 0 98.66

5 / 1 . 44.14 0 0.08 34.57 0.1 0.05 0 0.1 0 20.11 0 0 99.14

6 / 1 . 44.67 0 0 33.58 0.61 0.14 0.05 0.02 0 19.72 0.01 0 98.79

7 / 1 . 45.02 0 0.06 34.25 0.13 0.18 0 0.01 0 19.88 0 0 99.52

8 / 1 . 0 0 0.07 58.64 0.01 0 0 0 0.02 40.24 0 0 98.98

9 / 1 . 0.04 0 0.09 58.42 0 0.1 0 0.03 0 39.29 0.06 0 98.04

10 / 1 . 44.14 0 0 33.78 0.36 0.07 0 0 0.01 19.87 0 0 98.24

11 / 1 . 43.19 0 0.03 34.29 0.09 0.07 0 0 0 19.92 0.01 0 97.61

12 / 1 . 43.69 0 0.09 34.09 0.04 0.07 0 0.02 0 19.62 0 0 97.64

13 / 1 . 43.99 0 0.05 33.6 0.65 0.08 0 0.08 0.05 19.58 0.01 0 98.1

14 / 1 . 44.17 0 0 34.39 0.06 0.3 0.06 0 0 19.79 0 0 98.77

15 / 1 . 44.34 0 0 33.81 0.28 0.06 0.06 0 0.01 19.37 0 0 97.92

16 / 1 . 0.01 0.02 0.05 57.28 0 0.06 0.02 0 0 39.74 0 0 97.18

17 / 1 . 0.01 0 0.02 46.14 0.01 0.02 0.01 0.06 0 53.66 0 0 99.93

18 / 1 . 0.02 0 0.19 57.91 0 0.1 0.05 0 0 40.74 0 0 99.01

19 / 1 . 0.02 0 0.03 58.5 0 0.01 0 0.02 0 39.76 0 0 98.33

20 / 1 . 0 0 0.05 57.01 0.01 0.05 0 0 0 40.44 0 0 97.57

21 / 1 . 0.01 0 0.13 55.61 0 0.12 0 0 0.02 42.11 0 0 98.01

22 / 1 . 0.11 0 0.03 46.22 0 0.03 0.17 0.02 0 53.5 0 0 100.08

23 / 1 . 0.04 0 0.08 45.91 0 0.19 0 0 0 53.1 0.02 0 99.33

24 / 1 . 0.03 0.04 0.12 46.36 0.03 0 0 0.01 0 53.8 0 0 100.38

25 / 1 . 0 0 0.22 51.7 0.03 0.13 0.08 0 0.02 47.58 0 0 99.76

Annexure-XV-C: Spot values in % for EPMA sections for Sulphide phases in slide no. 08.

Weight

%

DataSet/Poin


1 / 1 . 0 0 0.11 29.9 0 0.01 33.78 0.05 0.03 35.06 0 0 98.94

2 / 1 . 0 0 0.1 29.52 0 0 33.76 0.02 0.04 34.4 0 0 97.82

3 / 1 . 44.7 0 0 31.24 2.92 0.38 0.02 0 0 19.93 0.04 0 99.22

4 / 1 . 45.27 0 0.04 31.78 1.88 0.41 0.02 0 0 20.29 0.02 0 99.7

5 / 1 . 0 0 0.1 29.41 0 0.02 35.23 0.02 0 35.53 0.06 0 100.36

6 / 1 . 0 0 0.05 29.18 0.03 0 34.58 0 0 34.62 0.04 0 98.49

7 / 1 . 0 0 0.08 29.42 0 0.01 34.52 0.03 0 35.55 0 0 99.61

8 / 1 . 0.01 0 0.01 29.32 0 0.01 33.94 0 0.01 35.26 0 0 98.55

9 / 1 . 0 0 0.14 28.98 0.03 0.01 34.23 0 0.06 34.7 0.03 0 98.16

10 / 1 . 0 0 0.05 58.23 0.01 0.01 0.11 0 0 40.02 0 0 98.43

11 / 1 . 0.02 0 0.13 29.53 0 0.02 34.36 0 0.02 35.68 0 0 99.75

12 / 1 . 0 0 0.16 29.29 0 0.07 33.93 0.01 0.02 36.01 0 0 99.5

13 / 1 . 0.05 0 0.02 28.99 0 0.06 33.72 0.07 0 36.83 0.04 0 99.77

14 / 1 . 0.02 0 0.08 28.84 0.01 0.04 34.27 0.07 0 35.09 0 0 98.42

15 / 1 . 0.04 0 0.04 29.56 0.01 0 34.21 0 0 34.92 0 0 98.77

Annexure-XV-D: Spot values in % for EPMA sections for Sulphide phases in slide no. 06.


1 / 1 . 43.25 0 0 33.02 0.44 0.06 0.04 0 0 19.53 0 0 96.33

2 / 1 . 43.99 0 0.07 32.36 0.49 0 0 0 0 20.88 0 0 97.79

3 / 1 . 36.21 0 0 33.52 0.39 0 0 0 0 19.6 0 0 89.72

4 / 1 . 42.72 0 0.01 34.04 0.44 0.05 0 0 0 21 0 0 98.25

5 / 1 . 43.92 0 0.06 34.3 0.63 0.03 0.03 0 0 19.64 0 0 98.6

6 / 1 . 43.3 0 0.02 34.2 0.62 0.13 0 0 0 20.07 0 0 98.35

7 / 1 . 36.19 0 0.1 34.06 0.57 0.08 0.03 0.05 0 19.32 0 0 90.4

8 / 1 . 0 0 0.1 45.91 0 0.06 0.03 0 0 52.63 0 0 98.74

9 / 1 . 0 0 0.09 45.95 0 0 0.01 0.01 0 52.51 0.04 0 98.61

10 / 1 . 0.04 0 0.04 46.2 0 0 0 0.01 0 51.78 0 0 98.07

11 / 1 . 0.03 0 0.1 46.61 0 0.08 0 0 0 52.03 0 0 98.86

12 / 1 . 0.02 0 0 46.46 0.01 0.11 0.01 0 0 51.85 0.09 0 98.54

13 / 1 . 0 0 0.07 47.04 0.01 0 0 0.03 0 52.01 0 0 99.16

14 / 1 . 0 0 0.1 58.5 0 0.05 0.1 0 0 39.45 0.02 0 98.23

15 / 1 . 0 0 0.06 58.53 0 0.04 0 0 0 38.95 0 0 97.58

16 / 1 . 0 0 0.1 58.98 0 0.02 0.03 0 0 39.32 0 0 98.45

17 / 1 . 0.01 0 0.12 46.55 0.01 0.08 0.01 0 0 52.26 0 0 99.02

18 / 1 . 0.01 0 0.09 46 0.04 0.09 0 0 0.01 51.95 0 0 98.21

19 / 1 . 0.03 0 0.11 46.66 0 0 0 0 0 52.19 0 0 98.98

20 / 1 . 0.01 0 0.1 46.55 0 0.08 0 0 0 52.13 0 0 98.88


Weight

%

DataSet/Poin


1 / 1 . 0 0 0.11 28.93 0 0.01 33.94 0.02 0 35.39 0 0 98.41

2 / 1 . 0 0 0.14 29.23 0.01 0 34.13 0.02 0 34.92 0 0 98.45

3 / 1 . 0 0 0 28.78 0.03 0 34.37 0 0 34.85 0.01 0 98.03

4 / 1 . 0 0 0 29.6 0.04 0 33.73 0 0 35.24 0 0 98.61

5 / 1 . 0.04 0 0.04 29.39 0 0 33.69 0.03 0.03 35.25 0 0 98.47

6 / 1 . 0.01 0 0.01 29.39 0 0 33.58 0 0 34.71 0 0 97.69

7 / 1 . 0 0 0.03 29.1 0.01 0.1 33.8 0.58 0 34.75 0 0 98.39

8 / 1 . 0.02 0 0.06 29.12 0 0.02 34.05 0.04 0 34.83 0 0 98.14

9 / 1 . 0 0 0.11 28.84 0 0 34.54 0.02 0 34.99 0 0 98.5

10 / 1 . 0.02 0 0.03 29.19 0.01 0.02 34.56 0 0 35.46 0.03 0 99.32

11 / 1 . 4.45 0 73.45 4.8 0.03 0 0 0 0 3.59 0.12 0 86.44

12 / 1 . 43.68 0 0 34.27 0.4 0.02 0.04 0.01 0 19.27 0 0 97.69

13 / 1 . 43.2 0 0 34.98 0.06 0.01 0 0 0 20.22 0 0 98.47

14 / 1 . 43.21 0 0 34.68 0.02 0.02 0.04 0 0 19.9 0 0 97.88

15 / 1 . 43.16 0 0.08 34.69 0.28 0 0 0 0 20.55 0.08 0 98.83

16 / 1 . 43 0 0.01 35.05 0.02 0 0 0 0 20.8 0 0 98.88

17 / 1 . 43.07 0 0.04 34.34 0.08 0.02 0.02 0.02 0 20.38 0.04 0 98.03

18 / 1 . 43.46 0 0.06 34.84 0.05 0.1 0 0 0 19.95 0 0 98.46

19 / 1 . 43.15 0 0.01 34.32 0.59 0.08 0.03 0.02 0 20.08 0 0 98.29

20 / 1 . 43.64 0 0.07 34.9 0.04 0.04 0 0.01 0 20.37 0 0 99.08

21 / 1 . 43.36 0 0.1 34.93 0.02 0.08 0 0 0 20.14 0 0 98.64

22 / 1 . 43.59 0 0.02 34.68 0.32 0.04 0 0 0 19.95 0.02 0 98.62

23 / 1 . 43.09 0 0.05 34.37 0.23 0 0.02 0.01 0.01 19.75 0 0 97.53


Weight%

DataSet/Poin


1 / 1 . 0 0 0.17 46 0 0.04 0.06 0 0 53.47 0 0 99.74

2 / 1 . 0 0 0.02 0.53 0.01 0 0 0.05 3.66 0.33 0 1.26 5.87

3 / 1 . 0.01 0 0.1 59.22 0.03 0.04 0.04 0.01 0 38.74 0.04 0 98.23

4 / 1 . 0.01 0 0.02 57.97 0.01 0.05 0 0.04 0 38.99 0 0 97.1

5 / 1 . 0 0 0.16 58.38 0.02 0.06 0 0 0 38.75 0 0 97.37

6 / 1 . 42.19 0 0.08 34.42 0.3 0 0.02 0 0 20.12 0.09 0 97.22

7 / 1 . 39.54 0.1 0.02 35.35 0 0.04 0 0 0 22.79 0.01 0 97.85

8 / 1 . 40.34 0 0.01 35.84 0 0.05 0 0 0 22.47 0 0 98.71

9 / 1 . 39.79 0 0.04 35.63 0.03 0 0 0 0 22.4 0 0 97.88

10 / 1 . 43.86 0 0.14 34.33 0.42 0.01 0 0 0 20.26 0 0 99.02

11 / 1 . 0.02 0 0.12 58.28 0.01 0.02 0 0 0 39.84 0.04 0 98.34

12 / 1 . 0.02 0 0.04 58.47 0 0.01 0 0 0 38.96 0 0 97.5

13 / 1 . 0 0 0.1 58.83 0 0.05 0 0.05 0 38.85 0 0 97.89

14 / 1 . 41.16 0 0.02 34.96 0.01 0.1 0 0 0 21 0.01 0 97.26

15 / 1 . 41.66 0 0.05 34.79 0.01 0.04 0 0 0 21.35 0 0 97.9

16 / 1 . 0 0 0.01 0.44 0.01 0.01 0 0 3.52 0.2 0 0.44 4.63

17 / 1 . 0.01 0 0.05 0.64 0 0.01 0 0.03 3.41 0.2 0 0.47 4.83

18 / 1 . 42.15 0 0 34.88 0.33 0 0.02 0 0 21.18 0 0 98.55

19 / 1 . 0 0 0.09 58.47 0 0 0 0 0 39.03 0 0 97.6

20 / 1 . 0.03 0 0.08 58.21 0.02 0.05 0 0.02 0 39.85 0 0 98.26

21 / 1 . 0.02 0 0.02 57.27 0 0.04 0.06 0 0 39.46 0 0 96.87

22 / 1 . 0.02 0 0.08 58.49 0.04 0.04 0 0 0 40.12 0 0 98.79

23 / 1 . 0.02 0 0.06 59.06 0 0 0.09 0.05 0 39.19 0 0 98.49

24 / 1 . 40.83 0 0.08 35.42 0 0 0 0 0 22.43 0 0 98.76

25 / 1 . 39.87 0 0.01 35.46 0 0.03 0.04 0 0 23.15 0.06 0 98.61

26 / 1 . 38.99 0 0 35.33 0.02 0 0 0 0 22.94 0 0 97.28

27 / 1 . 0.03 0 0.08 46.18 0.03 0.04 0.01 0 0 52.79 0.03 0 99.2

28 / 1 . 0 0 0.15 46.05 0.03 0 0 0.04 0.02 53.5 0 0 99.79

29 / 1 . 0 0 0.07 59.02 0 0 0 0.04 0 38.46 0 0 97.59

30 / 1 . 0.02 0 0.16 59.32 0 0.04 0 0 0 39.05 0 0 98.58

31 / 1 . 0.02 0 0.08 59.27 0.02 0.03 0 0.05 0 39.17 0 0 98.64

32 / 1 . 0 0 0.06 58.57 0.01 0.04 0 0 0 39.37 0 0 98.04

33 / 1 . 0 0 0.11 46.13 0.03 0.05 0 0.09 0 53.17 0 0 99.59

34 / 1 . 0 0.16 0 38.73 0 0.04 0 0.04 0 0 0 0 38.95

35 / 1 . 0 0 0 39.7 0 0.03 0.02 0.01 0 0.02 0.03 0 39.82

82°44´4.3´´

24°17´5.6´´

82°44´4.2´´

24°16´48.6´

´

82°43´50.42´´

24°17´5.7´´

82°43´14.8´´

24°17´20.2´´

82°43´14.8´´

24°17´20.2´´

PLATE-I

DETAILED GEOLOGICAL MAP OF CHAKARIYA BLOCK (FS 2016-17)

LONGITUDINAL-VERTICAL PROJECTED SECTIONS OF CHAKARIYA BLOCK PLATE-III

CROSS-SECTION SHOWING LATERAL CONTINUITY BETWEEN BOREHOLES IN CHAKARIYA BLOCK. PLATE-IV

LITHOLOG OF 1ST

LEVEL OLD AND NEW BOREHOLES OF CHAKARIYA BLOCK PLATE-V

Plate-VI

STATUS OF MINERAL EXPLORATION REPORT IN TERMS OF UNFC COMPLIANCE

Title of the

report

REPORT ON GENERAL EXPLORATION FOR GOLD MINERALISATION IN

CHAKARIYA BLOCK, TEHSIL- CHITRANGI, SINGRAULI- DISTRICT, MADHYA


Lib ACCNO:

Nil

Authors

Gladson Bage, Sr.Geologist


Year:

2016-17

Stage Nature of compliance required

Complied (Page

No.)/Not

complied

Remarks

I)

Summary/Abstract (1) Factual Data C, i-iii

(2) Recommendations C,

(3) Cost estimation NC

II) Introduction (4) Scope & Purpose C, 1-2

(5) Authority NC

(6) Current/Post Property Examination )BGI) NC

(7) Principal Sources of Information NC

(8) Acknowledgement C,2

III) Property

Description (9) Size, Continuity, Shape, surface rights NC

(10) Third party issue NC

(11) Climate/rights with dates C

(12) Land Title Officer NC

(13) Lat/Long/Village/town/district/mine site C, 3

(14) Accessibility/infrastructure C. 3

(15) Land

nature/water/timber/power/gas/agriculture/manpower C, 3-4

(16) Environmental issues/plan act/park/preservation NC

(17) Climate/topography C, 3

(18) Impact on landscape on mining NC

(19) Map of area/Block with roads/accessibility C,8

IV) History (20) Previous work highlights C, 5-8

(21) Attachment of previous maps/sections/tables C,5,Annexure

(22) Previous Mining History NC

(23) Reasons for closure NC

(24)Earlier production data NC

(25) Data on nearby mines NC

(V) Geoscience

investigation

(1) Geology (26) Stratigraphy C, 11

(27) Lithology C, 11-15

(28)Structure (with maps/profiles) C, 16-17

(29) Alteration Zones C,

(30) Geotechnical C

(31) Adequacy of data density C

(32) Reliability (quality & quantity) C

(33) Geological model NC

(II) Investigation

methods (34) Instrument & Technique NC

(35) Geology (Map with scale) C Plate-I

(36) Geophysical (with maps & scale) C

(37) Geochemical (with map & scale) C

(38) Data density of above C

(39) Size & style of mineralised zone C,

(40) Diagrams C,

Trenching,

cross-section,

LV section.

lithologs

(41) Metallurgical tests NC

(42) Deleterious contamination source NC

(VI) Mineral

Deposits

(I) Features of

deposit (43) Type of mineralisation C,

(44) Mode of occurrence C,

(45) Nature of mineralisation

(gosaan/alteration/structure) C,

(46) Reflectance of Mineralisation on geology/gp/gc C

(47) Map given C

(II) Sampling

details (48) Quality & Quantity of sample information C, 2-3

(49) Reliability on resource estimation C

(50) Nature of sampling Bed rock/grab/channel) C,

(51) Sampling method C,

(52) Introduction of duplicates in analysis NC

(III) Analysis

details (53) Laboratory C,

(54) Analytical methods C,

(55) Precision & accuracy NC

(56) Cross check analysis details NC

(IV)

Quality/Grade (57) Statistical data processing C .

(58) Cut off grade C

(59) Assumptions C

(V) Resource

estimation (60) Geological interpretation C

(61) Statement of tonnage & grade C

(62) Geometry of mineralisation assumed C

(63) Method adopted to arrive estimation C

(64) Estimation C

(VI) Economic

viability (65) Rough estimation of economic viability NC

(66) Intrinsic economic interest NC

(67) Eventual economic exploration NC

CERTIFICATE: Certified that this report is in compliance with UNFC G2 stage of Mineral investigation

Place: Date: Scrutinizer & Designation: Signature:

GOVERNMENT OF INDIA

GEOLOGICAL SURVEY OF INDIA

Data sheet on report movement in connection with its scrutiny

Project / Division. ME FSP No. 054/ME/CR/MP/2016/44 Mission. IIA

Title of the report.

FINAL REPORT ON GENERAL

EXPLORATION FOR GOLD

MINERALISATION IN CHAKARIYA BLOCK,

VILLAGE - CHAKARIYA TEHSIL -

CHITRANGI, SINGRAULI – DISTRICT ,

MADHYA PRADESH. STAGE (G-2)

Name of Author(s)

1. Gladson Bage, Sr. Geologist

2. Abhinav Om Kinker, Geologist

Date of submission of report to the

Supervisory Officer

30.06.2017………

Signature of the senior most author

……………………..

Name of Supervisory Officer

A.K.Talwar, Suptdg. Geologist

Date of receipt of report 30/06/17

Date of completion of scrutiny………………

Date of handing over report to the author

……………………….

Signature……………………….

Name of Author(s)

To whom the report has been handed over by

the Supervisory Officer

Gladson Bage, Sr. Geologist


Date of receipt of report after scrutiny

……………………...


Date of re-submission 25/07/17


Supervisory Officer

………………………..

Date of receipt of report after modification

…………………….

Date of handing over report to the Regional

Mission Head (for internal peer Review)

………………….


Name of the Regional Mission Head

……………………….

Date of receipt of report …………………….

Date of handing over report after peer review

to the Project Director ………………….



…………………………

Date of receipt of report from the Regional

Mission Head after peer review

……………………..

Date of handing over to auther(s)

28/08/17.


Name of Author(s)

…………………………

Date of receipt of report from the

Supervisory Officer

Date of handing over report to the

Supervisory Officer after modification

04/09/17, and 23/11/17



Date of receipt of report from the author(s)

after modification ………………….

Date of handing over report to the Regional

Mission Head 05/09/17 and 23/11/17


Name of the Regional Mission Head

……………………….

Date of receipt of report from the Project

Director after modification

……………………….

Date of handing over report to HOD of the

region for approval………………….


Name of the HOD of the region

…………………………

Date of receipt of report for approval

…………………………..

Date of Approval ………………

Date of sending back report to Project

Director…………….

Signature of the HOD ………………..

Name of the Project Director

……………………

Date of receipt of report after approval of

HOD……………………

Date of circulation of report……………..

Signature …………………..

Geological Survey of India

Certificate of Quality of the Report

Project/Division

Mapping

FSP No: 054/ME/CR/MP/2016/44 Mission-II

Title of the Report:

FINAL REPORT ON GENERAL EXPLORATION FOR

GOLD MINERALISATION IN CHAKARIYA BLOCK,

TEHSIL-CHITRANGI, SIDHI- DISTRICT, MADHYA


Part-A

This is to certify that the following officers have carried out the above mentioned

FSP, and are responsible for collection of filed data, carrying out the required laboratory

analysis, compilation and synthesis of field data, coalition of the data and writing of the

report as per the approved guidelines. The duration of field stay of each officer is as against

his name.

Name / Designation of the

Field Officer

Total field stay during FSP

16-17 (no. of days)

Signature with date.

Gladson Bage, Sr. Geologist 158 Days

Abhinav Om Kinker 176 Days

Part- D

This is to certify that chemical analysis of the geological samples has been carried out

as per the table given below.

Name of Director

In Charge of the

Chemical Lab

Dates of receipt

of samples from

the field

officer/party

Date of providing

complete analytical

results to the field officer

Signature with date of

the Director Chemistry.

Part-E

This is to certify that the below mentioned Supervisory Officers have supervised the

above item and have provided guidance to the field officer. The number of inspection visits

and total duration of field visit is as per the below table. It is also certified that the work

carried out under the project is of high standards, the norms of field work, lab work etc. have

been followed. It is also certified that thorough scrutiny of the report for maintaining the

scientific contents and its quality has been overseen.

Name /Designation

of Supervisory

Officer

No. of Inspection

Visit made to the

field area.

Total no. of days

spent on inspection

visit.

Signature with date.

Shri. A.K.Talwar 01 03

Part-F

This is to certify that the report has been thoroughly scrutinized at the Regional

Mission Head Level. The scientific content and the quality of the report are certified. The

report has been peer reviewed and the needful corrections have been attended to.

Part-G

This is to certify that the above report has been scrutinized at various levels and also

been peer reviewed. On being satisfied regarding the scientific content and the Quality of the

report, the undersigned has accorded approval for its circulation.

Name /Designation of the Regional Mission Head. Signature with Date.

Name /Designation of the Regional HOD Signature with Date.

BLOCK: CHAKARIYA

Tehsil: CHITRANGI, District: SINGRAULI, M. P.

(Reporting of Minerals Resources as per part IV ‘a’ Minerals (Evidence of Mineral content)

Rules 2015)

S.

No.

Contents Explanation

1 Title & Ownership

The work was initiated in the FSP 2016-2017 of Geological

Survey of India (GSI), Central Region, vide item No.

054/ME/CR/MP/2016/44.

Title: General Exploration for Gold Mineralization in Chakariya

block, Sidhi district, Madhya Pradesh.

E-mail ID- [email protected]

Phone No.- 07552551795

2 Details of the Area

Chakariya Block located in Sidhi district (now in Singrauli) of

Madhya Pradesh falls in parts of toposheet no. 63L/11. The

area is located about 14 km north of Singrauli Railway Station

and 39 km from District Headquarter Waidhan. The nearest

Railway station Karaila Road is 1 km south of Chakariya Village.

Chakariya block is approached by Waidhan-Singrauli-Renukoot

road.

DGPS Coordinates

S.No. Latitude Longitude

1 24° 17' 17.448"N 82° 43' 19.212" E

2 24° 17' 15.61"N 82° 43' 22.86" E

3 24° 17' 06.91"N 82° 43' 37.03" E

4 24° 17' 01.88"N 82° 43' 46.22" E

5 24° 17' 11.319"N 82° 43' 15.635" E

6 24° 16' 53.348"N 82° 43' 44.701" E

7 24° 16' 59.701"N 82° 43' 50.496" E

3 Infrastructure & Environment

The Chakariya area is having dispersed settlement with kachha

houses made up of mud and wood. The Chakariya village and

surrounding areas are sparsely populated with population of no

more than 250 people. The topography is undulating with small

hills and shallow valleys often occupied by seasonal nalas. It is a

dry and arid region supporting dry deciduous vegetation and

shrubs. Forest is managed by the community itself. Agriculture

is monsoon dependent and soil profile is shallow and not well

developed.

4 Previous Exploration

Gold exploration in Chakariya Block (E-1 Stage) was carried out

vide item no. MIE/CR/MP/1999/019 during the field season

programme 1999-2001. Drilling was done over 800 meters

strike length for assessing the potentiality of the auriferous

zones identified by trenches.

For detailed description please refer to the report titled

“General Exploration for Gold Mineralization in Chakariya

block, Sidhi district, Madhya Pradesh (Stage G2).”

5 Geology

Geologically the area belongs to Dudhmania Formation of

Mahakoshal Group of rocks. This Formation constitutes Mixed

Oxide-Silicate facies BIF and fine grained clastics. Phyllite is the

most dominant lithounit exposed in the block. Other rocktypes

include: BIF, Scorodite and different types of quartz veins.

Primary foliation or bedding is manifested in the form of

compositional and color banding in BIF and fine colored

laminations in phyllite especially near the contact with BIF.

Secondary structure in the study area is present in the form of

folds in BIF and penetrative cleavage in Phyllite. Microscopic to

mesoscopic folds are very well preserved in BIF. Rocks in the

study area have undergone low grade of metamorphism.

Scorodite (resulting from oxidation of arsenopyrite) and Quartz

vein grey are the two most positive indicators of gold

mineralization in the block along with minor mineralization

present in BIF and phyllite.




6

Aerial/Ground

Geophysical/Geochemical data

Geophysical logging of all the boreholes drilled during FSP

2016-17 was carried out by deploying microlloger unit. The

data acquired includes, Self-Potential, Single Point Resistance,

Natural Gamma and Resistivity.Petrochemical studies of 10

samples was also carried out.




7 Technological investigation

RQD for all the core samples of all the boreholes drilled during

FSP 2016-17 was calculated.




8 Location of Data Points The details of borehole points, sample locations and block

boundary are given in the report titled “General Exploration for

Gold Mineralization in Chakariya block, Sidhi district, Madhya

Pradesh (Stage G2).”

9 Sampling Techniques

The exploration involved drilling of 855m, core sampling of 100

samples, petrochemical sampling of 10 samples, petrological

studies of 20 samples, bed rock sampling of 50 samples and

EPMA study of 10 samples. A total of 50cum pitting/trenching

was also carried out with the collection of 50 PTS samples.

Bed Rock sampling was done on a gridded pattern from

throughout the area where rock exposures were available.

Unbiased Core sampling was done in the mineralized zones.

10 Drilling Technique & Drill

Sampling employed

Diamond Core drilling was done to obtain the core samples. HQ

size core was obtained drilled with double-tube core barrel.

11 Sub-sampling techniques and

sample preparation

Unbiased Core sampling was done in the mineralized zones.

Samples were powered to 200 mesh size and submitted for

various analysis after coning and quartering.

12 Quality of assay data and

laboratory tests

Samples were submitted to different labs of GSI for analysis.

Any check samples were not sent to any other lab for quality

check.

13 Moisture

Ground water sampling was done in Chakariya block. A total of

05 water samples have been collected from the dug wells and

hand pumps of Chakariya Block and were analyzed for pH and

TDS.

14 Bulk Density --

15 Resource Estimation

Techniques

Resource estimation has been done using LV section and Cross-

Section methods.




16 Further work --

17 Annexure/enclosures to the

report

Tables, Figures, Photomicrographs, Field Photographs,

Chemical results, etc. are attached as enclosures to the report.

18 Any other information

A total of 9 boreholes were drilled during FSP 1999-2001, in

which low grade tentative reserve of 198350 tonnes at an

average of 1.20 g/t Au had been established.

A total of 7 boreholes were drilled during FSP 2016-17. A total

of 27023 tons of ore with an average grade of 1.81 g/t has been

estimated for drill holes from cross section method and a total

of 24334 tons of ore has been estimated for drill holes from LV

section method.

Cumulative resource estimation for Gold for boreholes drilled

during FSP 1999-2001 and FSP 2016-17 at Chakariya

Block is137782.5 tones with an average grade of 1.32 g/t.

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