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 3
... plane status of S .. 3. Fracture cleavage ( S3 ) : It is only locally develo- ped and occurs parallel to the axial plane to the folds S2 ( ie . F3 ) . ( b ) Linear structures : on 1. Intersection of S1 and S2 : Intersections of s and S ...
... plane status of S .. 3. Fracture cleavage ( S3 ) : It is only locally develo- ped and occurs parallel to the axial plane to the folds S2 ( ie . F3 ) . ( b ) Linear structures : on 1. Intersection of S1 and S2 : Intersections of s and S ...
Page 17
... plane and related S2 - surfaces . Within the Chaibasa Formation the F2 - folds are of southerly overturned asymmetric type towards the south and gradually attain upright symmetric to mildly asymmetric form towards the north . This style ...
... plane and related S2 - surfaces . Within the Chaibasa Formation the F2 - folds are of southerly overturned asymmetric type towards the south and gradually attain upright symmetric to mildly asymmetric form towards the north . This style ...
Page 22
... plane ( S. ) ; 13. Schistosity plane ( S1 ) ; 14. Crenulation foliation ( S2 ) : 15. Fracture cleavage ( S ) ; 16. L - lineations ! 17. L2- linealions ; 18. L - lineations . Fig . 2. a . Selective equal area projection diagram for 50 S1 ...
... plane ( S. ) ; 13. Schistosity plane ( S1 ) ; 14. Crenulation foliation ( S2 ) : 15. Fracture cleavage ( S ) ; 16. L - lineations ! 17. L2- linealions ; 18. L - lineations . Fig . 2. a . Selective equal area projection diagram for 50 S1 ...
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