Records of the Geological Survey of India, Volume 112, Part 2government of India., 1983 - Geology 1867- includes the "Annual report of the Geological survey of India". |
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Page 21
... nodule , suggests that equilibration pressure estimates from these nodules are probably satisfactory . The Fe3 + / ( Cr + Al + Fe3 + ) ratio of the spinels indicates that they were formed in a low oxygen fugacity environment . The Al ...
... nodule , suggests that equilibration pressure estimates from these nodules are probably satisfactory . The Fe3 + / ( Cr + Al + Fe3 + ) ratio of the spinels indicates that they were formed in a low oxygen fugacity environment . The Al ...
Page 22
... nodules studied , varying in frequency , size , chemical composition , texture and degree of alteration . The modal analysis of five nodules indicated a range from 1.40 to 6.50 per cent for the spinel phase . This pronounced modal ...
... nodules studied , varying in frequency , size , chemical composition , texture and degree of alteration . The modal analysis of five nodules indicated a range from 1.40 to 6.50 per cent for the spinel phase . This pronounced modal ...
Page 26
... nodules formed under a relatively low oxygen fugacity . Fe3 + x 100 / ( Cr + Al + Fe3 + ) 2 2.30 90 70 50 Mgx100 ... nodules last equil brated can be estimated combining Davis and Boyd ( 196 and MacGregor ( 1974 ) approaches . The first ...
... nodules formed under a relatively low oxygen fugacity . Fe3 + x 100 / ( Cr + Al + Fe3 + ) 2 2.30 90 70 50 Mgx100 ... nodules last equil brated can be estimated combining Davis and Boyd ( 196 and MacGregor ( 1974 ) approaches . The first ...
Contents
Stratigraphic position of the Jungel Group of Central India | 7 |
Palaeontological Data System in the Geological Survey of India | 13 |
Chemical Behavior of Chromian Spinels from Ultrabasic Nodules | 21 |
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Assam assemblage associated axial plane basalts basin beds Burma Chattopadhyay chert chlorite chromite Clinopyroxene coal colour conglomerate correlation Crystalline cumulates deposits dinosaurs dipping Disang Group east Eastern Himalayas Eocene fault flysch folds Formation fossils gabbro Gansser Geol Geological Survey Ghosh Gondwana grains granite Group of rocks harzburgite Himalaya Indian plate Indo-Burma Jungel Group K-felspar Kashmir Lherzolite limestone lower mafic magnetite Manipur matrix metamorphic metaultramafites mineral Naga Hills Naga Hills Ophiolites Naga metamorphites Nagaland Nandy nodules occur oceanic olivine ophiolite ophiolite belt Ophiolite Suite orthopyroxene outcrops Parsoi peridotite Photo phyllite plagioclase Pradesh pyroxene quartz quartzite radiolarians range Records Vol Salumi sandstone sedimentary sediments Semri sequence serpentinite shale spinels Srikantia Stegosaurs stratigraphic suggest Surv Survey of India Suture tectonic Tertiary texture thickness tholeiitic thrust Titihidar Tr Tr Tr trend Ukhrul ultramafic unconformably Unpub Upper Cretaceous Vindhyan volcanics Zipu zone