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
... Volcanics are divided into ' Lower ' and ' Upper ' units on the basis of order of super- position . The predominant rock types of the Lower Khardung Volcanics are dacite , andesite , porphy- rite and ignimbrites together with tuffs ...
... Volcanics are divided into ' Lower ' and ' Upper ' units on the basis of order of super- position . The predominant rock types of the Lower Khardung Volcanics are dacite , andesite , porphy- rite and ignimbrites together with tuffs ...
Page 41
... volcanics in Tehla ( 27 ° 14 ′ : 76 ° 21 ' ) , Dogeta ( 27 ° 07 ' : 76 ° 16 ' ) and several other places ( Banerjee and Singh , 1977a ) and ubiquitous presence of an unconformity above the volcanics in most parts of the Delhi basin , a ...
... volcanics in Tehla ( 27 ° 14 ′ : 76 ° 21 ' ) , Dogeta ( 27 ° 07 ' : 76 ° 16 ' ) and several other places ( Banerjee and Singh , 1977a ) and ubiquitous presence of an unconformity above the volcanics in most parts of the Delhi basin , a ...
Page 61
... volcanics of this area may be equivalent to Jahaj- Govindpura Volcanics while the boulder conglomerate- quartzite sequence unconformably overlying the volcanics is correlated with Alwar Group . The author has recorded the physical ...
... volcanics of this area may be equivalent to Jahaj- Govindpura Volcanics while the boulder conglomerate- quartzite sequence unconformably overlying the volcanics is correlated with Alwar Group . The author has recorded the physical ...
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