Records of the Geological Survey of India, Volume 105Geological Survey of India, 1973 - Earthquakes |
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Page 6
... stage , the Sakmarian of the Permian , and hence the correlation of the Gangamopteris beds with any other horizon ... Stage of the Talchirs of the Peninsular Gondwanas , and not with the Karharbari Stage of the Damuda Series as done by ...
... stage , the Sakmarian of the Permian , and hence the correlation of the Gangamopteris beds with any other horizon ... Stage of the Talchirs of the Peninsular Gondwanas , and not with the Karharbari Stage of the Damuda Series as done by ...
Page 10
... Stage Middle Productus Stage Lower Productus Stage Nilawan ( Lower Series Permian Lavender Clay Stage Speckled Sandstone Stage Conularia beds Upper Carboniferous Talchir Conglomerates - The Conularia beds , grading down into the Talchir ...
... Stage Middle Productus Stage Lower Productus Stage Nilawan ( Lower Series Permian Lavender Clay Stage Speckled Sandstone Stage Conularia beds Upper Carboniferous Talchir Conglomerates - The Conularia beds , grading down into the Talchir ...
Page 32
... Stage ( unfossiliferous ) Grit stage ( Kirthar ) Conglomerate Stage ( Laki ) B. Sarkar ( 1966 ) , and S. Roychowdhury and Sarkar ( 1967 , 1968 ) mapped the Neil island and parts of the Middle and North Andaman . They also investigated ...
... Stage ( unfossiliferous ) Grit stage ( Kirthar ) Conglomerate Stage ( Laki ) B. Sarkar ( 1966 ) , and S. Roychowdhury and Sarkar ( 1967 , 1968 ) mapped the Neil island and parts of the Middle and North Andaman . They also investigated ...
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