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 3
... parallel orientation of the axial planes of bedding - folds in the quartzite enclaves and the foliation in the adjacent granite gneiss gives further support to the axial plane status of S .. 3. Fracture cleavage ( S3 ) : It is only ...
... parallel orientation of the axial planes of bedding - folds in the quartzite enclaves and the foliation in the adjacent granite gneiss gives further support to the axial plane status of S .. 3. Fracture cleavage ( S3 ) : It is only ...
Page 6
... parallel to Se ( S ) . It is pale pink in colour ( largely almandine ) and is altered to limonite at the borders . The rock shows growth of thin biotite flakes at the borders of chlorite , being flattened on the schistosity . Assemblage ...
... parallel to Se ( S ) . It is pale pink in colour ( largely almandine ) and is altered to limonite at the borders . The rock shows growth of thin biotite flakes at the borders of chlorite , being flattened on the schistosity . Assemblage ...
Page 20
... parallel compression on an originally tilted sedimentary pile accumulated proximal to the basin margin . Extreme crushing ( mylonitization and brecciation ) and significant interplannar slip parallel to S , causing displacement in F ...
... parallel compression on an originally tilted sedimentary pile accumulated proximal to the basin margin . Extreme crushing ( mylonitization and brecciation ) and significant interplannar slip parallel to S , causing displacement in F ...
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