Records of the Geological Survey of India, Volume 93, Part 2The Survey, 1963 - Earthquakes 1867- includes the "Annual report of the Geological survey of India". |
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Page 194
... Muscovite . Both the sandstones contain about 26 per cent . muscovite , The muscovite is , however , very poor in iron . The optical and X - ray data are given in Table 8 . TABLE 8 * d ( 100 ) / = 10.08 kX • nz = 1.588 2V = 40 ° d ( 200 ) ...
... Muscovite . Both the sandstones contain about 26 per cent . muscovite , The muscovite is , however , very poor in iron . The optical and X - ray data are given in Table 8 . TABLE 8 * d ( 100 ) / = 10.08 kX • nz = 1.588 2V = 40 ° d ( 200 ) ...
Page 204
... Muscovite X X , Quartz.- Kaolinite , as seen under the microscope , has been formed by disintegra- tion due to weathering of muscovite . This transformation of muscovite containing no iron , into kaolinite , need not have involved any ...
... Muscovite X X , Quartz.- Kaolinite , as seen under the microscope , has been formed by disintegra- tion due to weathering of muscovite . This transformation of muscovite containing no iron , into kaolinite , need not have involved any ...
Page 207
... muscovite . The ratio between kaolinite and musco- vite comes to approximately 0-4 in the parent rock ( Specimen No. 110 ) . If muscovite in specimen No. 116 had been , like quartz , reduced to a quarter of its original quantity , and ...
... muscovite . The ratio between kaolinite and musco- vite comes to approximately 0-4 in the parent rock ( Specimen No. 110 ) . If muscovite in specimen No. 116 had been , like quartz , reduced to a quarter of its original quantity , and ...
Contents
GEOLOGICAL SURVEY OF INDIA | 121 |
Some Features related to Eolian Sedimentation on Shore Linés By R N P 135142 | 135 |
A suggested succession of the Purana Formations of the Southern Part of 143148 | 143 |
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acid aluminium analyses anorthite anticline arkosic Banihal Banihal pass Bihar biotite calcite cent Cervus Chaibasa chloride chrome-ore chromite chromium clay particles composition concretions containing corroded Cr₂O crystallised crystals deposits diameter diaspore differential thermal analysis district Eklara End-member fault Fe ratio felspar Ferrochromite ferrous fireclay folds formation fossils fraction G. S. I. Type Geol Geological Survey goethite grain sizes grains of quartz granite hematite Hercynite Indian chromites kaolin kaolinite Kashmir Khairagarh laterite laterite profile layer limestone Madras Magnesiochromite magnetite metres mica muscovite occur outcrop oxide Palghat gap Panjal traps parent rock Pedhamli percentage Phako phyllite Pir Panjal pisolites plagioclase quartz quartz grains quartzite Raipur ripples sample sand sandstone Sayamalai sections sequence shales shear zone silica Singhbhum sodium solution specimen spinel Stegodon Surv Survey of India syncline Table thickness tunnel unit cell upper Vedadri X-ray