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AIRBORNE MINERAL SURVEYS AND EXPLORATION WING 2739
CENTRAL REGION 4079
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alignment analysed Andhra Pradesh anomaly Asstt attended bands Bangalore basalt basemetal basin belt Bihar Bijawar biotite block boreholes Calcutta carried charnockite Circle clay coal coalfield core covering an area Deccan Trap deposits depth Director District Divn dolomite drill holes Dutta dykes exploration exposed folds Formation geochemical geological mapping Geologist Jr Geology Division Geophysical Geophysicist geotechnical investigations Ghosh gneiss Gondwana granite gneiss Group Gupta Headquarters Hydel Hyderabad Jaipur Karnataka Kumar Laboratory limestone line km located logging Lucknow magnetic mapped an area mica mineral mineralisation Murthy Nagpur NE–SW NW–SE Orissa pegmatite phyllite Project quartz quartzite Quaternary RAC meeting Rajasthan Region river rock types S/Shri samples were collected sandstone scale schist seams sediments shale Sharma shear zone Shillong Shri Singh Sinha spillway sq km sq km area Srivastava strike length studies Supergroup surveys thickness tonnes toposheet traverse trending tunnel upto