Records of the Geological Survey of India, Volume 105Geological Survey of India, 1973 - Earthquakes |
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Page 109
... chemical composition of the three rock types . The results of the chemical analysis are presented in Table 1 both as weight percentages of oxides and as cation percentages . From the weight percentages of different oxides the C.I.P.W. ...
... chemical composition of the three rock types . The results of the chemical analysis are presented in Table 1 both as weight percentages of oxides and as cation percentages . From the weight percentages of different oxides the C.I.P.W. ...
Page 125
... chemical compositions . The para - amphibolite is associated with calc - granulite , and occurs as conformable bands and lenses lying between the foliation of the gneisses . The older ortho - amphibolite is intimately associated with ...
... chemical compositions . The para - amphibolite is associated with calc - granulite , and occurs as conformable bands and lenses lying between the foliation of the gneisses . The older ortho - amphibolite is intimately associated with ...
Page 138
... chemical composition to the calc - granulite , while the ortho - amphibolite bears a resemblance to that of the metadolerite . 4. The chemical data show that the behaviour and concentra- tion of various major and trace elements differ ...
... chemical composition to the calc - granulite , while the ortho - amphibolite bears a resemblance to that of the metadolerite . 4. The chemical data show that the behaviour and concentra- tion of various major and trace elements differ ...
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