Records of the Geological Survey of India, Volume 105Geological Survey of India, 1973 - Earthquakes |
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Page 10
... deposition in shallow seas in the early part of the sedimentation followed by deeper and clearer water suitable for deposition of the marine fauna in the lime- stone . The succession as given by Gee and modified by the author regarding ...
... deposition in shallow seas in the early part of the sedimentation followed by deeper and clearer water suitable for deposition of the marine fauna in the lime- stone . The succession as given by Gee and modified by the author regarding ...
Page 61
... deposition of these old sediments from the available data , yet it is probable that the pelagic siliceous and calcareous oozes were deposited at great depth in an almost flat ocean floor . Simultaneous with the sedimentation , volcanic ...
... deposition of these old sediments from the available data , yet it is probable that the pelagic siliceous and calcareous oozes were deposited at great depth in an almost flat ocean floor . Simultaneous with the sedimentation , volcanic ...
Page 75
... deposition of the Lower Gondwana rocks commenced in an uneven basement composed of metamorphic or Purana formations . The deposition appears to have continued uninterrupted from the Talchir to Barakar periods though climatic changes ...
... deposition of the Lower Gondwana rocks commenced in an uneven basement composed of metamorphic or Purana formations . The deposition appears to have continued uninterrupted from the Talchir to Barakar periods though climatic changes ...
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