Records of the Geological Survey of India, Volume 103

alignment associated Asstt attended bands beds block boreholes carried Central Circle clay coal collected completed comprising construction continued copper core covered deposits depth detailed dips Director district Division dolomite drilling Engineering estimated examined exploration exploratory exposed fault field flows folded Formation foundation geological geological mapping Geologist Jr geophysical gneisses grade granite groundwater hill holes included India indicated investigation joints Laboratory length limestone located logging Long Lower material measures meeting metal million mineralisation minerals Mining Nagpur occurs period phosphorite phyllite pits places Pradesh presence Project proposed quartz quartzite Rajasthan ranging recommended Region reported reserves river rock samples sand sandstones Sarvashri scale schist seams shales shear Shri strike studies suggested Survey systematic tests thickness tonnes topo-sheets trenching trending tunnel types units University Upper upto valley varies veins zone