Records of the Geological Survey of India, Volume 105Geological Survey of India, 1973 - Earthquakes |
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Page 57
... surface but when fresh it is light green . But towards the top of the formation the colour becomes white . The rock is very hard and consists of microcrystalline aggregates of calcite with a rich assemblage of foraminifera . Impure ...
... surface but when fresh it is light green . But towards the top of the formation the colour becomes white . The rock is very hard and consists of microcrystalline aggregates of calcite with a rich assemblage of foraminifera . Impure ...
Page 64
... surface area of about 3000 sq . m . and the surface area of all the exposed masses is about 3500 sq . m . The total reserve per metre depth is approximately 8500 tonnes . The main mass is likely to extend to a depth of 30 m . In the ...
... surface area of about 3000 sq . m . and the surface area of all the exposed masses is about 3500 sq . m . The total reserve per metre depth is approximately 8500 tonnes . The main mass is likely to extend to a depth of 30 m . In the ...
Page 97
... surface condition dipping at 30 ° due west dipping at 50 ° due north - east Vertical The surface of the glacier is covered ( except near the cirque ) by a cloak of gray and brown matter composed of moraines , dust and sand . White ice ...
... surface condition dipping at 30 ° due west dipping at 50 ° due north - east Vertical The surface of the glacier is covered ( except near the cirque ) by a cloak of gray and brown matter composed of moraines , dust and sand . White ice ...
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