Records of the Geological Survey of India, Volume 113, Part 3The Survey, 1985 - Earthquakes Vols. 1- include Report of the Geological Survey, 1867- ; v. 32- include Review of the mineral production of India, 1898/1903- ; v. 75 consists of Professional papers, no. 1-16; v. 76 consists of Bulletins of economic minerals. |
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Page 30
... mica schists ( with / without kyanițe , sta occurring as disseminations in vein quartz within chlo lite , garnet and sillimanite , intruded by metabasic do rite phyllite . This deposit has been worked in 1904-05 Granitic rocks occur to ...
... mica schists ( with / without kyanițe , sta occurring as disseminations in vein quartz within chlo lite , garnet and sillimanite , intruded by metabasic do rite phyllite . This deposit has been worked in 1904-05 Granitic rocks occur to ...
Page 64
... mica schists overlying the chlorite schist is com- posed of muscovite , biotite and quartz with porphyro- blasts of garnet , kyanite and staurolite at places . The mica schists are interlayered with bands of quartzites and quartz ...
... mica schists overlying the chlorite schist is com- posed of muscovite , biotite and quartz with porphyro- blasts of garnet , kyanite and staurolite at places . The mica schists are interlayered with bands of quartzites and quartz ...
Page 86
... mica schists and an upper part namely the Iron Ore Series , compri- sing mica schists , phyllite and granite with prominent horizons of quartzite and crushed conglomerate separa- ting the two . The sequence as established by Krishnan ...
... mica schists and an upper part namely the Iron Ore Series , compri- sing mica schists , phyllite and granite with prominent horizons of quartzite and crushed conglomerate separa- ting the two . The sequence as established by Krishnan ...
Contents
Structural evolution of Precambrians in parts of north Singhbhum BiharA Gupta | 13 |
Geology and mineralisation along the northern shear zone Purulia district West | 25 |
BengalAn upto date appraisalM N Kumar N Das and S Das Gupta | 33 |
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Common terms and phrases
anomaly zone antiform apatite assemblage axial plane axis bands Barakar Formation Baripada Basu Beldih belt Bihar biotite carbon-phyllite Cataclasite Chaibasa Chaibasa Formation chlorite chlorite schist horizon conglomerate contours copper Dalma syncline deformation Dhanjori dipping district domains Dubrajpur Formation Dulmi F₁ F₂ feldspars folds foliation fraction geochemical Geol Geological Survey geophysical Ghosh gneiss grains granite granite gneiss granitic rocks Gupta hill hornblende Kandra Kutni kyanite limestone lineation magnetite metamorphic mica schists migmatites mineral mineralisation muscovite Northern Shear Zone occur Orissa panned heavy pelitic phyllite plagioclase planar Plate plunging Precambrian puckers pyrite quartz quartzite Rajmahal Rangpo Records Volume 113 regional S₁ plots S₂ samples Sarkar Sarwan Pahar section schist schistosity sector sequence sericite Shear Zone silicified Singhbhum Singhbhum Shear Zone springs stratigraphic stream sediment structural Subarnarekha river sulphide Surv Survey of India tectonic tectonite trench Turamdih upto