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 28
... Quartz shows generally violetish opalescence and occurs as anhedral crystals or aggregates in the interspace between felspars . Released blebs of quartz occur along with microperthite and albite . Quartz shows undulatory extinction ...
... Quartz shows generally violetish opalescence and occurs as anhedral crystals or aggregates in the interspace between felspars . Released blebs of quartz occur along with microperthite and albite . Quartz shows undulatory extinction ...
Page 64
... quartz . Pelitic rock : Biotite , chlorite , muscovite , albite , quartz . Basic rock : Actinolite , albite , epidote , chlorite , Pelitic rock : Chlorite , muscovite , albite , quartz , Basic rock : Actinolite , albite , epidote ...
... quartz . Pelitic rock : Biotite , chlorite , muscovite , albite , quartz . Basic rock : Actinolite , albite , epidote , chlorite , Pelitic rock : Chlorite , muscovite , albite , quartz , Basic rock : Actinolite , albite , epidote ...
Page 91
... Quartz felsite In thin sections ( specimens collected from Modiya Pahar ) , the rock appears felsophyric with abundant phenocrysts of quartz . Coarse high temperature quartz phenocrysts are mostly euhedral tabular to pyramidal in forms ...
... Quartz felsite In thin sections ( specimens collected from Modiya Pahar ) , the rock appears felsophyric with abundant phenocrysts of quartz . Coarse high temperature quartz phenocrysts are mostly euhedral tabular to pyramidal in forms ...
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