Records of the Geological Survey of India, Volume 106

alignment alluvium amphibolites Andhra Pradesh anomaly Asstt bands basalt basin bauxite Bihar biotite block bore holes boreholes Calcutta carried charnockite chert clay coal comprising copper covered an area Deccan Trap Delhi deposits depth to water Director district dolerite dolomite drill holes dykes east electrical logging exploration exploratory fault felspar folds foliation formation fossils garnetiferous geochemical geohydrological geological investigations geological mapping Geological Survey Geologist Jr geophysical gneiss Gondwana grade grained granite gneiss graphite grey Groundwater hornblende indicated laterite limestone located Lucknow mapped on scale metres million tonnes minerals Mysore nala occurs Orissa pegmatite phosphate phyllites pits power house Project pyrite quartz quartzite Rajasthan recommended Region rock types S/Shri samples sandstone schist seams sediments shales Sharma shear zone Shri Singh Sinha spillway Srivastava strike length studies suggested Survey of India systematic thickness thin toposheet traverse trending tubewells tunnel upto valley varies Vindhyan