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 29
... strike of the Beldih ore body , a few small posures and boulders of apatite - magnetite rock were ated near Mednitanr village . Here the ore occurs as mall lens within chlorite schist . Exploration in this a has established strike ...
... strike of the Beldih ore body , a few small posures and boulders of apatite - magnetite rock were ated near Mednitanr village . Here the ore occurs as mall lens within chlorite schist . Exploration in this a has established strike ...
Page 37
... strike . Cu values range from L10 ppm to 1.22 % . Two distinct Cu- anmalous zones , each about 400m in strike length , have been delineated . These Cu- anomaly zones show very minor Pb ( upto 60 ppm ) and Zn ' ( L 200 ppm ) . Bulk ...
... strike . Cu values range from L10 ppm to 1.22 % . Two distinct Cu- anmalous zones , each about 400m in strike length , have been delineated . These Cu- anomaly zones show very minor Pb ( upto 60 ppm ) and Zn ' ( L 200 ppm ) . Bulk ...
Page 80
... strike rid- ges , hogbacks , etc. The adjoining area to the north - east and east is a gently undulating to gently sloping pedi- plain , merging with the alluvial valley - lls adjoining the Subarnarekha river . Although there are local ...
... strike rid- ges , hogbacks , etc. The adjoining area to the north - east and east is a gently undulating to gently sloping pedi- plain , merging with the alluvial valley - lls adjoining the Subarnarekha river . Although there are local ...
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