Records of the Geological Survey of India, Volume 116, Parts 3-8

amphibolite analysis Andhra Pradesh anorthosite associated bands base basin belt biotite body brown carbonate central centrum characters Chimakurti Chimalpad Chitradurga clay coal compared complex concentration course crystalline deposits depth developed district dolomite dykes earth eastern elements exposed facies field folding Formation fresh gabbro gabbroic Geol Geological Survey gneiss grains groundwater Group hill hornblende indicate Indravati intrusives iron Kotasaurus lake lateral laterite layered length limestone located lower major margin minerals minor Nagaur nature neural noticed observed occur olivine places plagioclase Plate Pleistocene portion present probably quartz quartzite range ratio region represents river rocks samples sand sandstone Saraswati sauropods schist seen sericite shale shelf shows spine stage structures studies suggests surface water Survey of India thickness tion trace trend unit variation weathering western width zone