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
... spinels from spinel - lherzolite inclusions of some Tertiary basaltic rocks of the States of Rio Grande do Norte and ... spinels increase with the depth from which the xenoliths were derived . The constant Cr / ( C® + Al + Fest ) ratio ...
... spinels from spinel - lherzolite inclusions of some Tertiary basaltic rocks of the States of Rio Grande do Norte and ... spinels increase with the depth from which the xenoliths were derived . The constant Cr / ( C® + Al + Fest ) ratio ...
Page 22
... spinels have never been observed among studied nodules . Some grains of chromian spinel appr to be myrmekitised by the basaltic melt . Spinel xenocrysts show dark reaction rims . Ty are frequently seen in the host basalts . Sometimes 18 ...
... spinels have never been observed among studied nodules . Some grains of chromian spinel appr to be myrmekitised by the basaltic melt . Spinel xenocrysts show dark reaction rims . Ty are frequently seen in the host basalts . Sometimes 18 ...
Page 27
... spinels of the xenoliths . The conclusions tained from Figures 4 and 5 lead to assumption that e Cr - Al contents of the spinels are a function of the alk composition , temperature . and pressure variations . Crx100 / ( Cr + Al + Fe 3+ ) ...
... spinels of the xenoliths . The conclusions tained from Figures 4 and 5 lead to assumption that e Cr - Al contents of the spinels are a function of the alk composition , temperature . and pressure variations . Crx100 / ( Cr + Al + Fe 3+ ) ...
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