Records of the Geological Survey of India, Volume 113, Parts 2-4Government of India, 1983 - Geology Includes the "Annual report of the Geological Survey of India," 1867- |
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Page 5
... developed in the granite gneiss and are paralleled by mineral linea- tion and folds on S , ( i.e. F2 ) . Occasionally , these are also developed in the quartzite and calc - silicate bands and represent the first folds on S1 ( i.e. F1 ) ...
... developed in the granite gneiss and are paralleled by mineral linea- tion and folds on S , ( i.e. F2 ) . Occasionally , these are also developed in the quartzite and calc - silicate bands and represent the first folds on S1 ( i.e. F1 ) ...
Page 25
... developed with- in the complex excepting serpentinite . It is coarse- grained , individual grains being 5 mm - 15 mm across , pale green to greenish black in colour and generally massive . It occasionally shows steep dipping mineral ...
... developed with- in the complex excepting serpentinite . It is coarse- grained , individual grains being 5 mm - 15 mm across , pale green to greenish black in colour and generally massive . It occasionally shows steep dipping mineral ...
Page 32
... developed around Sung where three big lenses 100- 250 m in length and 30-50 m in width occur within a 850 m long and 250 m wide zone ( Plate 3.12 ) ( The largest lense not shown in the map ) . The rocks show well developed primary ...
... developed around Sung where three big lenses 100- 250 m in length and 30-50 m in width occur within a 850 m long and 250 m wide zone ( Plate 3.12 ) ( The largest lense not shown in the map ) . The rocks show well developed primary ...
Contents
A Probable Zone of Carbonatite and Fenitic Rock Association | 7 |
Quantitative Correlation of Cyclic Stratigraphic Sequences | 17 |
On the Fossiliferous Ordovician Rocks of Black Mountain | 35 |
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alkali anomaly apatite Arunachal assemblage associated axial bands Beldih belt Bhutan Bihar biotite bore holes borehole Carbonaceous carbonatite Chaibasa chert chlorite chlorite schist chromite coal seam Coarse sandstone complex contours correlation Dalma Deccan basalts deformation deposits depth developed Dhanjori district Dubrajpur Dubrajpur Formation Eastern exploration F₁ fault feldspars folds foliation fossils geochemical Geol Geological Survey Ghosh gneiss Gondwana grade grains granite gneiss grey Group Hills Himalaya host rock ijolite limestone lineation magnetite Manipur Medium sandstone metamorphism metres migmatites mineralisation minerals muscovite nepheline Northern Shear Zone occur olivine ophiolite phyllites plagioclase Plate plunging Pradesh Precambrian pyrite quartz quartzite regional rock types S₁ S₂ samples sandstone Sarkar schist schistosity sector sedimentary sequence sericite serpentinite shale sillimanite Singhbhum stratigraphic structural studies sulphide Surv Survey of India tectonic texture thickness tholeiites tion trending ultramafic upto veins volcanic