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 35
... Range is a prominent physiogra- phic feature in the Central Bhutan Himalaya which acts as a water divide range between Sankosh river or Mo- Chu towards west and Mangde - Chu towards east . The range trends NW - SE in the northern part ...
... Range is a prominent physiogra- phic feature in the Central Bhutan Himalaya which acts as a water divide range between Sankosh river or Mo- Chu towards west and Mangde - Chu towards east . The range trends NW - SE in the northern part ...
Page 115
... range 0.5-1.0 microns over the various rock types in Chitradurga schist belt of Precambrian age in Karnataka State , India , have shown the usefulness of the data in discrimination between ( i ) basalts , rhyolites and tuffs , ( ii ) ...
... range 0.5-1.0 microns over the various rock types in Chitradurga schist belt of Precambrian age in Karnataka State , India , have shown the usefulness of the data in discrimination between ( i ) basalts , rhyolites and tuffs , ( ii ) ...
Page 100
... ranges from 25.34 to 55.38 percent ; SiO2 varies from 0.38 to 15.04 percent . The chromites used in refractory industry ... ( range 0.464 to 0.748 ) ratios indicate their affinity to alpine chromites ( Irvine , 1967 ; Thayer , 1969 , 1970 ) ...
... ranges from 25.34 to 55.38 percent ; SiO2 varies from 0.38 to 15.04 percent . The chromites used in refractory industry ... ( range 0.464 to 0.748 ) ratios indicate their affinity to alpine chromites ( Irvine , 1967 ; Thayer , 1969 , 1970 ) ...
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