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 14
... northern limb and ( iii ) the northern ' geoanti- cline ' abutting against the Chotanagpur . granite - gneiss massif towards the north . The Precambrians of northern Singhbhum ( Iron Ore Series ) was subdivided into an older Chaibasa ...
... northern limb and ( iii ) the northern ' geoanti- cline ' abutting against the Chotanagpur . granite - gneiss massif towards the north . The Precambrians of northern Singhbhum ( Iron Ore Series ) was subdivided into an older Chaibasa ...
Page 25
... Northern Shear Zone and the well known Singhbhum shear zone , geo - scientists in : Geological Survey of India have carried out detailed work in recent years on the geology and the economic potentialities of the Northern Shear Zone ...
... Northern Shear Zone and the well known Singhbhum shear zone , geo - scientists in : Geological Survey of India have carried out detailed work in recent years on the geology and the economic potentialities of the Northern Shear Zone ...
Page 27
... Northern Shear zone can hardly be substantiated . Structural History The metasedimentary rocks of the Northern Shear Zone host a large number of secondary structural elements along with a few relict primary features . Primary ...
... Northern Shear zone can hardly be substantiated . Structural History The metasedimentary rocks of the Northern Shear Zone host a large number of secondary structural elements along with a few relict primary features . Primary ...
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