Records of the Geological Survey of India, Volume 99, Part 1

abutment alignment Andhra Assistant associated Asstt bands basalt Bihar boreholes carried Central Circle Office clay coal coalfield collected completed construction continued covered deposits depth detailed district dolomite drilling eastern Engineer examined exploration exploratory exposed fault field folds formations fossils foundation further Geol geological geological mapping Geologists gneiss grade granite groundwater hill holes India indicated joints Laboratory length limestone located Long Lower Madras mapped scale measures meeting metres mineralisation minerals Nummulitic occurs Office pegmatite period phyllite pits places Pradesh presence Project proposed quartz quartzite Rajasthan ranging recommended Regional reported reserves river rocks samples sand sandstone Sarvashri schist seams selected Senior shale shear sheet Shri soil spillway strike structure suggested Survey thickness thin tion tonnes trend tunnel types varying veins water supply weathered West zone