Records of the Geological Survey of India, Volume 124, Part 2The 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 247
... exploration for lignite was conducted in Lalpettai area of Tamil Nadu . Systematic geological mapping in the Ib - River Coalfield revealed for the first time unequivocal floral evidence to show a lower to middle Triassic age of the ...
... exploration for lignite was conducted in Lalpettai area of Tamil Nadu . Systematic geological mapping in the Ib - River Coalfield revealed for the first time unequivocal floral evidence to show a lower to middle Triassic age of the ...
Page 273
... exploration in different Gondwana Coalfields , the lower Mahanadi Valley remains the major caterer of coal to power sector of the nation . The regional exploration or coal in Mahanadi valley continued during the F.S. 1989-90 in four ...
... exploration in different Gondwana Coalfields , the lower Mahanadi Valley remains the major caterer of coal to power sector of the nation . The regional exploration or coal in Mahanadi valley continued during the F.S. 1989-90 in four ...
Page 293
... exploration for coal in Son Valley and Wardha Valley Coalfields was conducted during the field season 1989-90 by deployment of eleven drills for identifying additional reserves of coking coal , superior quality coal and power grade coal ...
... exploration for coal in Son Valley and Wardha Valley Coalfields was conducted during the field season 1989-90 by deployment of eleven drills for identifying additional reserves of coking coal , superior quality coal and power grade coal ...
Contents
CENTRAL HEADQUARTERS | 6 |
AIRBORNE MINERAL SURVEYS AND EXPLORATION WING | 143 |
Overview of the Deputy Director General | 211 |
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Common terms and phrases
aeromagnetic amphibolite AMSE Wing analysis Andhra Pradesh anomalies assemblage bands Barakar Formation BARREN MEASURES FORMATION basement basin Bhutan block boreholes carbonaceous Central chalcopyrite clay coal seams Coal Wing coarse grained Code copper mineralisation core Cruise deposits depth range DISTRICT drilling east eastern ENE-WSW evaluation EXPLORATION FOR COAL faults felsic field season fold geochemical GEOLOGICAL MAP gneisses Gondwana grade granite gravity grey Group heavy mineral ilmenite INDEX India indicate intersected investigation Kamthi Formation limestone lineament MADHYA PRADESH magnetic magnetite medium metamorphism migmatite million tonnes NW-SE occur ORISSA phyllite potential PRECAMBRIAN pyrite quartz quartzite Raniganj Raniganj Formation Regional exploration rocks Sakoli samples sand sandstone scale schist schist belt seabed seam zones sector sediments shale siltstone silty Singhbhum soil sq km Stratigraphy strike length sulphide surface surveys Talchir Formation tectonic thickness tion Toposheet trending tuff upto VALLEY COALFIELD varies volcanics zone