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 28
... associated with apatite - magnetite rock . The wall rocks of the mineralization at Beldih are mica schists , calc silicate rocks , metabasites , quartzite and biotite granite . The quartzite is highly brecciated and contains ferru ...
... associated with apatite - magnetite rock . The wall rocks of the mineralization at Beldih are mica schists , calc silicate rocks , metabasites , quartzite and biotite granite . The quartzite is highly brecciated and contains ferru ...
Page 79
... associated with a number of wide ranging environmental problems depen- ding upon the type of resources and the extraction tech- niques applied . In the past these side effects were con- sidered as part and parcel of the resource ...
... associated with a number of wide ranging environmental problems depen- ding upon the type of resources and the extraction tech- niques applied . In the past these side effects were con- sidered as part and parcel of the resource ...
Page 80
... associated with other sulphides like pyrite , pyrrhotite and pentlandite and oxide minerals like apa- tite and magnetite . The total ore reserves in this belt is around 190 milli- on tonnes . The deposits are large enough to sustain in ...
... associated with other sulphides like pyrite , pyrrhotite and pentlandite and oxide minerals like apa- tite and magnetite . The total ore reserves in this belt is around 190 milli- on tonnes . The deposits are large enough to sustain in ...
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