Records of the Geological Survey of India, Volume 105Geological Survey of India, 1973 - Earthquakes |
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Page 42
... body . The slip and rupture planes are invariably very steeply dipping and are developed at random in various directions . The trend of the ultrabasic bodies are normally concordant with the structure of the surrounding younger or older ...
... body . The slip and rupture planes are invariably very steeply dipping and are developed at random in various directions . The trend of the ultrabasic bodies are normally concordant with the structure of the surrounding younger or older ...
Page 104
... body and its non - participation in the fold movement indicate its emplacement as late - tectonic or post - tectonic . The occurrence of the anorthosites in the crest of the antiform is suggestive of the phacolithic nature of the ...
... body and its non - participation in the fold movement indicate its emplacement as late - tectonic or post - tectonic . The occurrence of the anorthosites in the crest of the antiform is suggestive of the phacolithic nature of the ...
Page 177
... body . As such , the estimated volume of the quartz vein carrying an ore body with a total lead content of one million tonnes would be around 7 x 108 - 7 x 109 cubic metres . Assuming a tabular geometry ( of the type exposed in this ...
... body . As such , the estimated volume of the quartz vein carrying an ore body with a total lead content of one million tonnes would be around 7 x 108 - 7 x 109 cubic metres . Assuming a tabular geometry ( of the type exposed in this ...
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