Records of the Geological Survey of India, Volume 113, Parts 2-4

analysed anomaly apatite appear associated bands basalts belt bodies coal coarse compared complex concentration continuity contours correlation Deccan deformation deposits depth described detailed developed district Dubrajpur east Eastern elements exploration fault field folds Formation fossils fraction Geol Geological Survey Ghosh gneiss grade grains granite Group Hills Himalaya indicate later limestone lower major Medium metamorphism minerals mining minor nature northern observed occur phase phyllites places Plate present pyrite quartz quartzite range recorded reflectance regional relation reported represent respectively rocks samples sandstone schist seam sector sediments sequence sericite shale Shear Zone similar Singhbhum soil stage structural studies suggest sulphide surface Survey of India Table tectonic thickness thin tion trace trending unit upper values veins volcanics zone