Records of the Geological Survey of India, Volume 114

alignment amphibolite analysed Andhra Pradesh anomaly bands basin bed rock belt Bihar biotite block boreholes carried chalcopyrite charnockite clay coalfield comprising core covering an area depth dips Director DISTRICT Division dolomite drill holes dykes excavation exploration exposed fault folds foliation Formation geochemical geological investigation geological mapping geotechnical investigation glacier gneiss Gondwana granite gneiss granitoid grey Group Headquarters Hydel Project indicated intrusive Jammu Karnataka km long Laboratory Ladakh laterite limestone line km lineaments located logging magnetic magnetite mapped an area mica migmatites mineralisation minerals nala occur Orissa pegmatite phyllite pits power house proposed pyrite quartz quartz veins quartzite Rajasthan regional river rock types samples were collected sandstone scale schist seams sector sediments shale shear zone Shri siltstone slate spillway sq km sq km area strike length studies sulphide Survey of India thickness tion tonnes toposheet trending tunnel upto valley varying volcanics