Records of the Geological Survey of India, Volume 113, Parts 1-3

analysis anomaly associated bands base basin belt block bodies boreholes carried Central Circle clay coal collected completed comprising conducted continued core covered deposits depth detailed dips Director DISTRICT Division drilled east encountered estimated exploration exposed extending fault field folds Formation foundation geological mapping Geologist geophysical gneiss grade granite gravity grey Group Headquarters hill holes India indicated investigation laboratory length limestone located logging magnetic major measurements million mineral mineralisation observed occur officers phyllite pitting Pradesh prepared present progress Project proposed quartz quartzite recommended recorded Region resistivity river rock types rocks S/Shri samples sandstone scale schist seams sediments seismic refraction shale sheet Shri slate Southern sq km strike structural studies suggested surface surveys thickness thin tion tonnes toposheet traverse trending tunnel units upto Valley various varying veins zone