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
... indicated by disharmonic folds and crumpling at the fold arches , while the slip is evi- denced by transposition of S1 ... indicate sout- hward overturning of these folds . Structural analysis in the southern part of the area reveals a ...
... indicated by disharmonic folds and crumpling at the fold arches , while the slip is evi- denced by transposition of S1 ... indicate sout- hward overturning of these folds . Structural analysis in the southern part of the area reveals a ...
Page 25
... indicate juxtaposition of lower grade green schist facies and higher grade amphibolite facies along this zone . The ... indicated its eastward ension upto Khatra ( 22 ° 58′40 ′′ N 86 ° 51′45 ′′ E ) in kura district and Western extension ...
... indicate juxtaposition of lower grade green schist facies and higher grade amphibolite facies along this zone . The ... indicated its eastward ension upto Khatra ( 22 ° 58′40 ′′ N 86 ° 51′45 ′′ E ) in kura district and Western extension ...
Page 64
... indicate reworking of older quart- zites and granites ( distal facies ) and in totality giving rise to a very high ... indicate an older age Chaibasa Formation ( cf. Sarkar and Deb , 197 Mukhopadhyay , 1976 ) . On the contrary top and ...
... indicate reworking of older quart- zites and granites ( distal facies ) and in totality giving rise to a very high ... indicate an older age Chaibasa Formation ( cf. Sarkar and Deb , 197 Mukhopadhyay , 1976 ) . On the contrary top and ...
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