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 20
... stage when layer parallel strain along the fold surface and shear stress along the cleavages dominated over actual buckle shortening ( Ramberg 1964 , Ghosh , 1968 ) . It may be noted that the rotation of F , axes and intensity of the ...
... stage when layer parallel strain along the fold surface and shear stress along the cleavages dominated over actual buckle shortening ( Ramberg 1964 , Ghosh , 1968 ) . It may be noted that the rotation of F , axes and intensity of the ...
Page 83
... stage which deserve special and immediate attention . However , with the proposed future expansion of mining operations and other activi- ties the potential impact will grow considerably and the environment will come under greater and ...
... stage which deserve special and immediate attention . However , with the proposed future expansion of mining operations and other activi- ties the potential impact will grow considerably and the environment will come under greater and ...
Page 86
... stage ) . Calcitic marble } Birmitrapur Stage . Dolomitic Marble Mica - schists and phyllites with a zone of carbonaceous rocks ( Kumarmunda stage ) . Phyllites with gonditic rocks ( Ghoriator stage ) ( Base not seen ) . According to ...
... stage ) . Calcitic marble } Birmitrapur Stage . Dolomitic Marble Mica - schists and phyllites with a zone of carbonaceous rocks ( Kumarmunda stage ) . Phyllites with gonditic rocks ( Ghoriator stage ) ( Base not seen ) . According to ...
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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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