Records of the Geological Survey of India, Volume 93

analyses Andhra appears Assistant associated bands beds boreholes calcite carried cent chemical chromite clay coal Coalfield collected complete composition concentration concretions consists contains covered deposits depth detailed determined diameter district Drilled east ending examined exposed fault field folds formation fossils further Geological Geologist gneisses grade grains granite hematite important included India indicate iron kaolin kaolinite laterite layer lignite limestone located lower Madhya Madras mapping material methods metres mica miles minerals muscovite observed occur officers origin particles percentage places Pleistocene portion Pradesh present quartz quartzites ratio recorded reported reserves ripples river rocks samples sand sandstone Sarvashri seams shales shear Shri solution specimen stage structure suggested suitable Survey Table taken thickness tons UNIVERSITY Upper varies veins X-ray zone