Records of the Geological Survey of India, Volume 105Geological Survey of India, 1973 - Earthquakes |
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Page 125
AMPHIBOLITES OF BANKA SUBDIVISION , BHAGALPUR DISTRICT , BIHAR by U. PRASAD , Ph . D. Geologist ( Sr. ) Geological Survey of India ( With plates 10-11 ) ABSTRACT Three types of amphibolites i.e. , para - amphibolite , older ortho - ...
AMPHIBOLITES OF BANKA SUBDIVISION , BHAGALPUR DISTRICT , BIHAR by U. PRASAD , Ph . D. Geologist ( Sr. ) Geological Survey of India ( With plates 10-11 ) ABSTRACT Three types of amphibolites i.e. , para - amphibolite , older ortho - ...
Page 130
... amphibolites are shown in Table 5 , and those of three samples of younger ortho- amphibolites and one sample of metadolerite in Table 6. The Table 7 - gives the average compositions of the three types of amphibolites , calc - granulite ...
... amphibolites are shown in Table 5 , and those of three samples of younger ortho- amphibolites and one sample of metadolerite in Table 6. The Table 7 - gives the average compositions of the three types of amphibolites , calc - granulite ...
Page 137
... amphibolites have been plotted and compared with the trends of both igneous rocks and lime- stone - pelite mixtures . In Plate 10 Niggli mg is plotted against Niggli c , and in Plate 11 Niggli mg , c and ( al - alk ) have been plotted ...
... amphibolites have been plotted and compared with the trends of both igneous rocks and lime- stone - pelite mixtures . In Plate 10 Niggli mg is plotted against Niggli c , and in Plate 11 Niggli mg , c and ( al - alk ) have been plotted ...
Contents
CONTENTS | 2 |
The Geology and Mineral Resources of the Andaman | 25 |
Geology of the Coal Measures in the Deccan Trap region | 69 |
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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