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AIRBORNE MINERAL SURVEYS EXPLORATION WING
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alignment alluvium analysis Andhra Pradesh assess Asstt bands basalt basin Bihar biotite block boreholes carried charnockite clay coal coalfield comprises Construction stage covering an area Deccan Trap delineated deposits depth district DIVISION Director Divn drill cores dykes earth dam ECONOMIC GEOLOGY evaluation exploration exposed field season Formation fossils geochemical geological investigations Geologist Geologist Jr GEOLOGY DIVISION geomorphological geophysical surveys Geophysicist geotechnical investigation gneiss Gondwana granite granite gneiss Headquarters Director India indicated investigation was taken Irrigation km was covered Kumar laboratory limestone located logging magnetic magnetite Maharashtra migmatite 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 sand sandstone 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