Records of the Geological Survey of India, Volume 105Geological Survey of India, 1973 - Earthquakes |
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Page 31
... later Ray and S. S. Saha , mapped the South Andaman , Tarmugli group , parts of Ritchie Archipelago and Middle Andaman island . Their work brought about an elaboration and revision of the Andaman strati- graphy . The rocks were ...
... later Ray and S. S. Saha , mapped the South Andaman , Tarmugli group , parts of Ritchie Archipelago and Middle Andaman island . Their work brought about an elaboration and revision of the Andaman strati- graphy . The rocks were ...
Page 44
... Later in 1959 and 1960 , this was no longer visible on the beach but could be felt under foot in the sea bottom a short distance beyond the water line . The explosion crater in the old cone is nearly circular in shape and about 1.6 km ...
... Later in 1959 and 1960 , this was no longer visible on the beach but could be felt under foot in the sea bottom a short distance beyond the water line . The explosion crater in the old cone is nearly circular in shape and about 1.6 km ...
Page 146
... later mining activity and erosional debris . Later , in 1882 , the Bengal Baraganda Copper Company was formed and this company exploited the deposit till 1891. According to Oates ( 1895 ) , the manager of the mine , " five shafts were ...
... later mining activity and erosional debris . Later , in 1882 , the Bengal Baraganda Copper Company was formed and this company exploited the deposit till 1891. According to Oates ( 1895 ) , the manager of the mine , " five shafts were ...
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