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 147
... bands of ferruginous shale , chert , limestone , clay beds , lenses of haematite and a dioritic sill 2. Green shales with bands of limestone and clay ; a doleritic sill in the lower part 1. Ferruginous shales with lenses and bands of ...
... bands of ferruginous shale , chert , limestone , clay beds , lenses of haematite and a dioritic sill 2. Green shales with bands of limestone and clay ; a doleritic sill in the lower part 1. Ferruginous shales with lenses and bands of ...
Page 238
... bands of graphite bearing Magnesite quartzo - felspathic gneiss are seen in the southern part of Talamalai with an average width of 20 m over a strike of 100 m . Four generations of folds and a few faults have been deciphered in the ...
... bands of graphite bearing Magnesite quartzo - felspathic gneiss are seen in the southern part of Talamalai with an average width of 20 m over a strike of 100 m . Four generations of folds and a few faults have been deciphered in the ...
Page 384
... bands have been delineated of which three bands have shown 44 % magnesia , low silica and iron oxide . Mangla Prasad , V. N. Bajpai and A. K. Tripathi carried out investigations for magnesite in the Pagao - Gulabkoti area ( lat . 30 ...
... bands have been delineated of which three bands have shown 44 % magnesia , low silica and iron oxide . Mangla Prasad , V. N. Bajpai and A. K. Tripathi carried out investigations for magnesite in the Pagao - Gulabkoti area ( lat . 30 ...
Contents
INTRODUCTION | 1 |
AIRBORNE MINERAL SURVEYS EXPLORATION WING | 44 |
OPERATION BIHAR | 135 |
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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