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 10
... rock seems to be of metasomatic origin . The field evidences of metasomatic origin are as below : ( i ) These have gradational contacts . ( ii ) There are metasomes of quartzites in these rocks which show parallelism with the country rocks ...
... rock seems to be of metasomatic origin . The field evidences of metasomatic origin are as below : ( i ) These have gradational contacts . ( ii ) There are metasomes of quartzites in these rocks which show parallelism with the country rocks ...
Page 69
... muscovite or pyrophyllite , forsterite in marble to antigorite , cordierite of cordierite - anthophyllite rock retrogrades to chlorite . Hornblende in basic rocks also shows METAMORPHISM OF DELHI SUPERGROUP OF ROCKS IN N. E. RAJASTHAN 69.
... muscovite or pyrophyllite , forsterite in marble to antigorite , cordierite of cordierite - anthophyllite rock retrogrades to chlorite . Hornblende in basic rocks also shows METAMORPHISM OF DELHI SUPERGROUP OF ROCKS IN N. E. RAJASTHAN 69.
Page 70
... rocks ( granites , schists , quartzites and basic rocks ) are fenitised . The replacement took place along schistosity , grain boundaries and fractures , gradually expanding to replace the country rocks . The original structures of the ...
... rocks ( granites , schists , quartzites and basic rocks ) are fenitised . The replacement took place along schistosity , grain boundaries and fractures , gradually expanding to replace the country rocks . The original structures of the ...
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