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 13
... marked by prominent dip slip ( reverse ) along the F2 axial planes , which is more or less ubiquitous over the entire width of the belt . However , along the Singhbhum shear zone and north of it occasional development of a strain - slip ...
... marked by prominent dip slip ( reverse ) along the F2 axial planes , which is more or less ubiquitous over the entire width of the belt . However , along the Singhbhum shear zone and north of it occasional development of a strain - slip ...
Page 16
... marked ubiquitously in the metamorphites by preferred dimensional orientation of prismatic and flaky minerals . In Turamdih sector , rootless hinges of minor F1 - folds are best preserved in the magnetitic quartzite of Bhitar- dari and ...
... marked ubiquitously in the metamorphites by preferred dimensional orientation of prismatic and flaky minerals . In Turamdih sector , rootless hinges of minor F1 - folds are best preserved in the magnetitic quartzite of Bhitar- dari and ...
Page 63
... marked by a late but rare intrusive phase of gabbroic composition . Though Dhanjori lavas are considered so long uniformly to be of tholeiitic in composition , recent work by the author and co - workers in the Dhanjori basin shows it to ...
... marked by a late but rare intrusive phase of gabbroic composition . Though Dhanjori lavas are considered so long uniformly to be of tholeiitic in composition , recent work by the author and co - workers in the Dhanjori basin shows it to ...
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