Records of the Geological Survey of India, Volume 121, Part 1The Survey, 1991 - Earthquakes Vols. 1- include Report of the Geological Survey, 1867- ; v. 32- include Review of the mineral production of India, 1898/1903- ; v. 75 consists of Professional papers, no. 1-16; v. 76 consists of Bulletins of economic minerals. |
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Page 53
... blocks . A total of 1,333 geochemical samples were also collected . A total of 999.15 m was drilled in seven boreholes in Rawatiya block . Copper mineralisation over a width ranging from 0.6 to 2.40 m , with the grade varying from 0.3 ...
... blocks . A total of 1,333 geochemical samples were also collected . A total of 999.15 m was drilled in seven boreholes in Rawatiya block . Copper mineralisation over a width ranging from 0.6 to 2.40 m , with the grade varying from 0.3 ...
Page 250
... Block Four boreholes were drilled for testing 3 mineralised zones . On the basis of drilling , 3 ore bodies of 50,100 and 180 m lengthss with gold content varying from 4.3 to 5.6 g / t over widths varying from 1.00 m to 3.7 m were ...
... Block Four boreholes were drilled for testing 3 mineralised zones . On the basis of drilling , 3 ore bodies of 50,100 and 180 m lengthss with gold content varying from 4.3 to 5.6 g / t over widths varying from 1.00 m to 3.7 m were ...
Page 272
... blocks , Bethunmi South , Bethunmi Central and Bethunmi North . The exploration of Bethunmi South block is proposed to be complected by the end of 1987-88 , with the additional input of one more rig . Investigation of mineralisation in ...
... blocks , Bethunmi South , Bethunmi Central and Bethunmi North . The exploration of Bethunmi South block is proposed to be complected by the end of 1987-88 , with the additional input of one more rig . Investigation of mineralisation in ...
Contents
INTRODUCTION | 1 |
AIRBORNE MINERAL SURVEYS EXPLORATION WING | 44 |
OPERATION BIHAR | 135 |
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Common terms and phrases
alignment analysis Andhra Pradesh anomaly arca assess Asstt bands basalt basin Bihar biotite block boreholes carried chalcopyrite charnockite chemical clay coal coalfield comprising Construction stage covering an area Deccan Trap delineated deposits depth district DIVISION Director DIVISION-I Divn drill cores dykes Economic Geology evaluation exploration exposed field season Formation fossils geochemical geological investigations geological mapping Geologist Jr GEOLOGY DIVISION geomorphological geophysical surveys Geophysicist geotechnical investigation Ghosh gneiss Gondwana granite granite gneiss Group indicated investigation was taken Karnataka km was covered Kumar laboratory limestone located logging magnetic Maharashtra migmatites mineral mineralisation occur Orissa pegmatite Petrology phyllite power house programme proposed quartz quartzite Quaternary Rajasthan Regional Geology river rock types S/Shri samples were collected sandstone scale schist schist belt seams sediments sequence shale Shri Singh Siwalik spillway sq km Srivastava strike length studies suggested sulphide surface thickness toposheet trending tunnel upto Uttar Pradesh