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 11
... thin sections from Fatehpura , the rock is essential- ly composed of euhedral to subhedral grains of calcite ( 80 to 90 per cent modal volume ) . Other minerals are green spinel ( pleonaste ) , olivine and chlorite . Olivine grains ...
... thin sections from Fatehpura , the rock is essential- ly composed of euhedral to subhedral grains of calcite ( 80 to 90 per cent modal volume ) . Other minerals are green spinel ( pleonaste ) , olivine and chlorite . Olivine grains ...
Page 39
... Thin argillaceous interbands with development of biotite porphyroblasts . Brown and buff calcareous quartzites with thin limestone bands and greenish white quartzites . Thickly bedded greenish grey sub - grey- wacke , arkosic quartzite ...
... Thin argillaceous interbands with development of biotite porphyroblasts . Brown and buff calcareous quartzites with thin limestone bands and greenish white quartzites . Thickly bedded greenish grey sub - grey- wacke , arkosic quartzite ...
Page
... Thin bands of quartzites are found interlayered with the volcanics viz . south of Mainajohria and east of Ramatandi . A thin ( 5m ) band of quartz - chlorite schist can be traced for a strike length of about 10 km within the ...
... Thin bands of quartzites are found interlayered with the volcanics viz . south of Mainajohria and east of Ramatandi . A thin ( 5m ) band of quartz - chlorite schist can be traced for a strike length of about 10 km within the ...
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