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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Results 1-3 of 67
Page 69
... range between 18.50m and 224.20m Six coal scam zones A to F from bottom upwards , have been identified in the boreholes . However , each zone is split into several sections . The cummulative thickness range of the coal seam zones is as ...
... range between 18.50m and 224.20m Six coal scam zones A to F from bottom upwards , have been identified in the boreholes . However , each zone is split into several sections . The cummulative thickness range of the coal seam zones is as ...
Page 74
... range of 49.35m to 67.05m The lignite overburden ratio here ranges from 1:10 to 1:16 . The analytical data show the ash content of these seams is 30.40 % and moisture content 10 % . The bedmoisture however could not be determined ...
... range of 49.35m to 67.05m The lignite overburden ratio here ranges from 1:10 to 1:16 . The analytical data show the ash content of these seams is 30.40 % and moisture content 10 % . The bedmoisture however could not be determined ...
Page 75
... range of 624.92m and 757.15m In borehole GMM - 2 however , three seams varying in thickness from 0.65m to 5.43m were encountered within the depth range of 462.80m and 486.86m . On the basis of the exploration so far carried out , a ...
... range of 624.92m and 757.15m In borehole GMM - 2 however , three seams varying in thickness from 0.65m to 5.43m were encountered within the depth range of 462.80m and 486.86m . On the basis of the exploration so far carried out , a ...
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