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 4
... Plate 4 , fig 3 , 4 and 12 ) . The F2 folds were developed on S , in the quartzite and calc - silicate bands and on S2 in the pelitic schists and granite gneiss and migmatites . They are usually represented by steeply plunging ...
... Plate 4 , fig 3 , 4 and 12 ) . The F2 folds were developed on S , in the quartzite and calc - silicate bands and on S2 in the pelitic schists and granite gneiss and migmatites . They are usually represented by steeply plunging ...
Page 57
... ( Plate IV ) of the order of 12 mv / m in the south - western limb with positive values to the south - west indicating thereby a south - westerly dip of the causative body . That the body lies at a shallow depth is quite evident from the ...
... ( Plate IV ) of the order of 12 mv / m in the south - western limb with positive values to the south - west indicating thereby a south - westerly dip of the causative body . That the body lies at a shallow depth is quite evident from the ...
Page 87
... ( Plate 1 ) and a continuous refraction profiling was carried out . The interval between the N - S traverses was kept at 400 metres ; individual seismic profiles were kept about 300 metres long , as this spread length was gene- rally ...
... ( Plate 1 ) and a continuous refraction profiling was carried out . The interval between the N - S traverses was kept at 400 metres ; individual seismic profiles were kept about 300 metres long , as this spread length was gene- rally ...
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