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IH MIN RAL INVESTIGATIONS
ENGINEERING GEOLOGY INVESTIGATIONS
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Assistant Asstt bands Block boreholes carried Central Circle clay coal coalfield collected completed consists construction continued copper covered deposits depth detailed dips district Division dolomite drilling east electrical examined exposed fault field folded formations foundation further Geol geological geological mapping Geologists Geophysics gneiss grade granite groundwater Headquarters holes India indicated investigation laboratory lignite limestone located Long Lower Madras magnetic mapping Scale measurements meet metres million mineralisation minerals Northern Nummulitic observed occurs Office pegmatite period phyllite pierce places Pradesh prepared presence Project proposed quartz quartzite ranging received recommended Regional reports requirements river rock samples sand sandstone Sarvashri schist seams selected Senior shale sheets Shri station strike suggested suitable surface Survey Technical thickness thin tonnes Trap trending tubewells tunnel types Upper varies veins water supply zone