Records of the Geological Survey of India, Volume 116

alignment amphibolite Andhra Pradesh anomaly Asstt attended bands Bangalore basalt basemetal basin belt Bihar Bijawar biotite block boreholes Calcutta carried charnockite Circle clay coal coalfield comprises core covering an area Deccan Trap deposits depth Director District Divn dolomite drill holes dykes exploration exposed fault flows folds Formation fossils geochemical geological mapping Geologist Jr Geology Division geophysical geotechnical investigations glacier gneiss Gondwana granite gneiss Group Headquarters Hyderabad indicated Karnataka Kumar Laboratory laterite limestone line km located logged Lucknow Madhya Pradesh magnetic mapped an area mica mineral mineralisation Nagpur nala NW-SE Orissa pegmatite phosphorite phyllite power house proposed quartz quartzite Quaternary Regional river rock types S/Shri samples were collected sandstone scale schist seams sediments shale shear zone Shillong Shri Singh spillway sq km sq km area Srivastava strike length studies Supergroup surveys thickness toposheet traverse trending tunnel upto varying veins Vindhyan West