Records of the Geological Survey of India, Volume 96

abutment alignment Andhra Pradesh appears Assistant Geologists associated bands bank Bihar boreholes Calcutta carried cent Central Circle clay coal coal seams coalfield collected comprise consist construction containing continued copper covered deposits depth detailed developed dips district Ditto Division dolomite drilling dykes east Engineer examined exposed fault folded foliation formations foundation geological Geological Survey Geologists Geophysical gneiss grade granite groundwater Headquarters hill holes in-Charge indicated joints Laboratories laterite lignite limestone located Long Lower Madhya Madras mapped Scale metres mineral mineralisation occur Office pegmatite period phyllite places Pradesh prepared Project proposed publications quartz quartzite Rajasthan recommended recorded Regional Office reported reserves river rock rock types samples sand sandstone Sarvashri schist seams shale sheets Shri Srivastava strike studies suggested suitable thick tion tonnes trend tunnel University Upper varies veins zone