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MAP COMPILATION PUBLICATION INFORMATION DIVISION
OFFSHORE MINERAL EXPLORATION AND MARINE GEOLOGY WING
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analysed anomalies associated attended bands Bangalore bank basin block boreholes Calcutta carried Central chemical Circle clay coal coalfield collected comprising construction continued core covered deposits depth detailed dips Director district DIVISION drilling East encountered Engineer examined exploration exposed fault field folds Formation foundation geological Geologist Jr geophysical gneiss grade granite grey Group Headquarters holes Hyderabad included India indicated investigation laboratory length limestone located logging magnetic major mapping measurements meeting mineralisation minerals Nagpur occur officers phyllite power house Pradesh prepared present progress Project proposed quartz quartzite recorded Region reported river rock types rocks S/Shri samples sand sandstone scale Scheme schist seams sector sediments shale shear Shri soil sq km stage strike structural studies suggested surface surveys thickness tion toposheet traverse trending tunnel units valley various varying veins West zone