Records of the Geological Survey of India, Volume 112, Parts 7-8Government of India, 1981 - Earthquakes Includes the "Annual report of the Geological Survey of India," 1867- |
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Page 33
... occur in a felsitic matrix . Subordinate amount of altered mafics are chlorite and epidote . Andesite and porphyrite flows occur interbedded with the other members of the Lower Khardung unit . Megascopically , andesite is a porphyritic ...
... occur in a felsitic matrix . Subordinate amount of altered mafics are chlorite and epidote . Andesite and porphyrite flows occur interbedded with the other members of the Lower Khardung unit . Megascopically , andesite is a porphyritic ...
Page 28
... occur as opaque irregular masses in the groundmass associated with biotite , chlorite or hornblende . Secondary calcite occurs in fine grains and also as veins . Colourless sphene occurs as granular aggregates . Apatite occur as small ...
... occur as opaque irregular masses in the groundmass associated with biotite , chlorite or hornblende . Secondary calcite occurs in fine grains and also as veins . Colourless sphene occurs as granular aggregates . Apatite occur as small ...
Page 36
... occur associated with chlorite . The migmatised rock seems to be a quartz schist . Specimens from well dumps southeast of Kanor have been found to have syenitic composition as observed in thin sections . A thin section shows that it ...
... occur associated with chlorite . The migmatised rock seems to be a quartz schist . Specimens from well dumps southeast of Kanor have been found to have syenitic composition as observed in thin sections . A thin section shows that it ...
Contents
RECORDS | 1 |
Geology Structure and Sulphide Mineralisation of Tosham District Bhiwani Haryana | 7 |
Geology and Geochemistry of Sulphide Mineralisation in Teejanwali Hill Mahendragarh | 17 |
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Ajabgarh albite altered anomaly Aravalli Banded Gneissic Complex Bari Sadri basin Bayana beds belt Berach Berach Granite Bhadesar biotite calcite chert chlorite colour conglomerate country rocks crystalline Delhi Supergroup Deoban deposits district dolomite east eastern epidote fault felspar fluvial folds foliation Formation fractures Geol Geological Survey glacial glacier gneiss grade grains granite grey groundmass Himalaya hornblende intrusive Jamuna Jogipura Jutogh kankar limestone magmatic magnetite Mandhali metamorphism metasediments metres mica schist microcline migmatites mineralisation minerals muscovite NE-SW Nithar NW-SE occur oligoclase orthoclase overlying pebbles pegmatite phase phenoclasts phyllite places plagioclase Plate-1 porphyry Pre-Aravalli pre-Delhi Purola quartz quartzite Rajasthan region rhyolite river samples sand Sandstone schist schistose sediments seen sequence sericite shale shows slate sphene stratigraphic Sub-basin Supergroup surface Surv Survey of India tectonic terraces texture thick thin Thrust Tosham trend tuff unconformity valley veins Vindhyan Volcanics Wazri zircon zone