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 38
... Point Pb : 625 ppm -do- Geophysical response Remarks 5 6 Nil Define a zone . -do- 26 - III A Point Pb : 500 ppm Quartz vein traversing sericite- Minor ferrugi- nation , Adjacent to Ground EM - axis Significant . granite . 43 - III A ...
... Point Pb : 625 ppm -do- Geophysical response Remarks 5 6 Nil Define a zone . -do- 26 - III A Point Pb : 500 ppm Quartz vein traversing sericite- Minor ferrugi- nation , Adjacent to Ground EM - axis Significant . granite . 43 - III A ...
Page 39
... Point 3 4 -do- -do- 5 Nil 6 Non - signi- ficant . Pb : 400 ppm 20 - III A Point -do- -do- Pb : 100 ppm Within the gronnd magnetic zone Significant as it lies within shear zone and magnetic zone . Non - significant 17 - III A Point Pb ...
... Point 3 4 -do- -do- 5 Nil 6 Non - signi- ficant . Pb : 400 ppm 20 - III A Point -do- -do- Pb : 100 ppm Within the gronnd magnetic zone Significant as it lies within shear zone and magnetic zone . Non - significant 17 - III A Point Pb ...
Page 87
... point elevations were all tied with the TISCO B. M. at Hathibari quarry and all depths are expressed in terms of the mean sea level . It is obvious that for dipping layers the travel - time curve will not give the true velocities of the ...
... point elevations were all tied with the TISCO B. M. at Hathibari quarry and all depths are expressed in terms of the mean sea level . It is obvious that for dipping layers the travel - time curve will not give the true velocities of the ...
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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Common terms and phrases
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