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 81
... tion of surface and sub - surface water bodies ; Rapid deforestation for development of town- ships causing climatological changes and ecolo- gical imbalances ; ( g ) Waste water discharge from mines and town- ships . Nearly 5782 ...
... tion of surface and sub - surface water bodies ; Rapid deforestation for development of town- ships causing climatological changes and ecolo- gical imbalances ; ( g ) Waste water discharge from mines and town- ships . Nearly 5782 ...
Page 85
... tion of fluxgrade limestone by indicating the thicknesses of the variable overburden over the limestone bedrock , thus minimising the cost of wasteful drilling as well as for a speedy appraisal of the mining potentiality of the ...
... tion of fluxgrade limestone by indicating the thicknesses of the variable overburden over the limestone bedrock , thus minimising the cost of wasteful drilling as well as for a speedy appraisal of the mining potentiality of the ...
Page 103
... tion , it is found that Dubrajpur Formation is more resis- tant to weathering . It is made of coarse arenaceous rocks , whereas Barakar Formation is more felspathic and argillaceous in composition and thus susceptible to weathering ...
... tion , it is found that Dubrajpur Formation is more resis- tant to weathering . It is made of coarse arenaceous rocks , whereas Barakar Formation is more felspathic and argillaceous in composition and thus susceptible to weathering ...
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