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 17
... scale parallel to e axial planes ( S2 ) of F2 - folds and puckers is a promi- ent feature in the southern part of ... scale antiform . Along the Dalma tract , the large scale structure defined by the repetition of the lithologic units ...
... scale parallel to e axial planes ( S2 ) of F2 - folds and puckers is a promi- ent feature in the southern part of ... scale antiform . Along the Dalma tract , the large scale structure defined by the repetition of the lithologic units ...
Page 49
... scale mapping ( scale 1 cm = 10m ) , exploratory pitting and trenching , followed by channel and chip sampling for ascertaining the potentiality of the deposit . The country rocks of the area are mainly composed of , quartz- sericite ...
... scale mapping ( scale 1 cm = 10m ) , exploratory pitting and trenching , followed by channel and chip sampling for ascertaining the potentiality of the deposit . The country rocks of the area are mainly composed of , quartz- sericite ...
Page 61
... scale first generation struc- tures ( F ) framed by the repetition of lithounits include the conspicuous closures of Gohala anticline and the Mainajharia syncline both with a nearly reclined geo- metry and are overturned towards west ...
... scale first generation struc- tures ( F ) framed by the repetition of lithounits include the conspicuous closures of Gohala anticline and the Mainajharia syncline both with a nearly reclined geo- metry and are overturned towards west ...
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