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 7
... minor amounts of apatite , sphene , idote and opaque ores . Perthites ( microcline- icroperthite ) and myrmekites are quite common . otash feldspar rimmed with albite and occurring within otash feldspars is also noted . Some potash ...
... minor amounts of apatite , sphene , idote and opaque ores . Perthites ( microcline- icroperthite ) and myrmekites are quite common . otash feldspar rimmed with albite and occurring within otash feldspars is also noted . Some potash ...
Page 25
... Minor fold ones On S1 Minor fold axes Pucker insation On 32 Masor fold ou04 Mineral insation Grooving & Striations Sub - area Mo. Foult Quartzite Metopaires F g h n Λ Bankura district and western extension 25.
... Minor fold ones On S1 Minor fold axes Pucker insation On 32 Masor fold ou04 Mineral insation Grooving & Striations Sub - area Mo. Foult Quartzite Metopaires F g h n Λ Bankura district and western extension 25.
Page 39
... Minor leaching Nil Cu : 1000 ppm Isolated point anomaly . 40 - III A Point -do- -do- Adjacent to Significant . Cu : 1000 ppm I. P. anomaly 41 - III A 250m Cu : 1000 ppm -do- Leaching ; specks & dissemination of sulphides Feeble I. P. ...
... Minor leaching Nil Cu : 1000 ppm Isolated point anomaly . 40 - III A Point -do- -do- Adjacent to Significant . Cu : 1000 ppm I. P. anomaly 41 - III A 250m Cu : 1000 ppm -do- Leaching ; specks & dissemination of sulphides Feeble I. P. ...
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