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 69
... metamorphism reaches the high temperature condition of low grade or garnet zone . In the low grade amphibolites , relict ophitic texture is preserved , but pyroxenes have been completely altered to actinolite , and plagioclase to ...
... metamorphism reaches the high temperature condition of low grade or garnet zone . In the low grade amphibolites , relict ophitic texture is preserved , but pyroxenes have been completely altered to actinolite , and plagioclase to ...
Page 70
... metamorphism of the Delhi rocks ranges from low pressure greenschist facies to low pressure amphibolite and epidote - amphi- bolite facies . Following the classification of Winkler ( 1974 ) , the metamorphism ranges from ' medium grade ...
... metamorphism of the Delhi rocks ranges from low pressure greenschist facies to low pressure amphibolite and epidote - amphi- bolite facies . Following the classification of Winkler ( 1974 ) , the metamorphism ranges from ' medium grade ...
Page 71
... metamorphism along with the thermal metamorphism is followed by retrogressive metamorphism and metasomatism . ACKNOWLEDGEMENTS The manuscript of the paper was prepared under the supervision of Dr. A. K. Banerjee , Director , Geological ...
... metamorphism along with the thermal metamorphism is followed by retrogressive metamorphism and metasomatism . ACKNOWLEDGEMENTS The manuscript of the paper was prepared under the supervision of Dr. A. K. Banerjee , Director , Geological ...
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