Records of the Geological Survey of India, Volume 105Geological Survey of India, 1973 - Earthquakes |
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Page 69
... younger Lameta beds . However , recent borings have revealed continuation of the Barakar coal measures underneath these younger formations in the vast ter- rain between these inliers . Four to five coalseams have been proved occupying ...
... younger Lameta beds . However , recent borings have revealed continuation of the Barakar coal measures underneath these younger formations in the vast ter- rain between these inliers . Four to five coalseams have been proved occupying ...
Page 125
... younger ortho - amphibolite envelopes the younger metabasics i . e . , metadolerite and metagabbro . Mineralogical distinctions of the three types of amphibolites , the chemical similarities between the para - amphibolite and the calc ...
... younger ortho - amphibolite envelopes the younger metabasics i . e . , metadolerite and metagabbro . Mineralogical distinctions of the three types of amphibolites , the chemical similarities between the para - amphibolite and the calc ...
Page 137
... younger ortho - amphibolites along with metadolerite are overlapping each other and give a trend which is somewhat similar to that of the Karroo dolerites ( cf. Leake , 1964 ) , and is almost at right angles to that given by a mixture ...
... younger ortho - amphibolites along with metadolerite are overlapping each other and give a trend which is somewhat similar to that of the Karroo dolerites ( cf. Leake , 1964 ) , and is almost at right angles to that given by a mixture ...
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