Records of the Geological Survey of India, Volume 113, Part 3

analysed anomaly apatite associated authors axial bands base bearing beds belt Bihar biotite bodies carried Chaibasa chlorite close concentration contours copper Dalma defined deformation deposits detailed developed Dhanjori dipping district domains Dubrajpur Formation Dunn east Eastern elements exposed folds foliation Formation fraction Geol Geological Survey geometry geophysical Ghosh gneiss grains granite Group hill indicate later length lineation located major marked metamorphic mica mineral mineralisation mining muscovite nature northern noted observed occur Pahar parallel phyllite places plane Plate plots plunging Point Precambrian present quartz quartzite Records region reported represented rocks samples Sarkar scale schist schistosity sector sequence sericite Shear Zone significant Singhbhum southern springs stage stream sediment strike structural suggest surface Survey of India Teleost thickness tion trench units values varying