Records of the Geological Survey of India, Volume 105Geological Survey of India, 1973 - Earthquakes |
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Page 86
... field check in the plateau country on either side of the Koyna valley . They look quite fresh and recent and occupy the N.-S. edges of the scarps parallel to which a number of long but narrow gaping cracks have developed due to the ...
... field check in the plateau country on either side of the Koyna valley . They look quite fresh and recent and occupy the N.-S. edges of the scarps parallel to which a number of long but narrow gaping cracks have developed due to the ...
Page 92
... field limited between Koyna valley to the east and a distance of about 45 km . to 50 km . to the west from the margin of the continental divide . Conclusions The following tentative conclusions have been arrived at from the ...
... field limited between Koyna valley to the east and a distance of about 45 km . to 50 km . to the west from the margin of the continental divide . Conclusions The following tentative conclusions have been arrived at from the ...
Page 101
... field season 1955-56 . Detailed mapping of the anorthosite body and the associated rocks was carried out by him in the 1960-61 field season . The anorthosites occur in an area of about 320 sq . km . in the southeastern part of the ...
... field season 1955-56 . Detailed mapping of the anorthosite body and the associated rocks was carried out by him in the 1960-61 field season . The anorthosites occur in an area of about 320 sq . km . in the southeastern part of the ...
Contents
CONTENTS | 2 |
The Geology and Mineral Resources of the Andaman | 25 |
Geology of the Coal Measures in the Deccan Trap region | 69 |
Copyright | |
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80 mesh amphibolites analysed Andaman island anorthosites apatite bands Baraganda Baratang Baratang island basaltic basin beds Bihar biotite Bramlette and Riedel calc-granulite calcareous calcite carbonate Carboniferous charnockites chemical clay coal coalfield coalseams conglomerate copper deposition Discoaster district endothermic endothermic peak Eocene estherids fauna felspar figs folds foliation Formation fossil gabbro Gangamopteris garnetiferous geochemical Geol Geological Survey Geologist glacier gneisses Gondwana grained granitic gray anorthosites graywacke hill hornblende indicate khondalites limestone lodes Lower margins metadolerite metal Middle Andaman mineral mineralisation Mussoorie Nala Nicobar occur Orissa orthopyroxene oxides para-amphibolite Permian phenocrysts phosphate phosphorite pinnules plagioclase present pyroxene quartz quartzite rocks samples sandstone sedimentary sediments shales shear shows siltstone snout South Andaman Stradner strike length Surv Survey of India thickness Thinnfeldia tion tonnes trace element ultrabasic upto valley varies veins volcanic younger ortho-amphibolite Zemu glacier zone