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
... southern fringe of the belt was considered to be reverse due to extreme overfolding and thrusting of the northern Chaibasa rocks over the southern Iron Ore Stage rocks along the much discussed Singhbhum Shear Zone , thrust belt . Sarkar ...
... southern fringe of the belt was considered to be reverse due to extreme overfolding and thrusting of the northern Chaibasa rocks over the southern Iron Ore Stage rocks along the much discussed Singhbhum Shear Zone , thrust belt . Sarkar ...
Page 17
... southern part of the belt , though ot uncommon in other parts . This has often displaced he hinges of F2 - folds and produced sigmoids on S. and The puckers on S2 are the most prominent lineation lated to the second deformation . At ...
... southern part of the belt , though ot uncommon in other parts . This has often displaced he hinges of F2 - folds and produced sigmoids on S. and The puckers on S2 are the most prominent lineation lated to the second deformation . At ...
Page 86
... southern part is to the south , the amount of dip being usually steep ( 60 ° -90 ° ) . Limestone and dolomite group marks an important horizon in the Gangpur sequence and these formations were included by Krishnan under Birmitrapur ...
... southern part is to the south , the amount of dip being usually steep ( 60 ° -90 ° ) . Limestone and dolomite group marks an important horizon in the Gangpur sequence and these formations were included by Krishnan under Birmitrapur ...
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