Records of the Geological Survey of India, Volume 105, Part 2Geological Survey of India, 1973 - Earthquakes Vols. 1- include Report of the Geological Survey, 1867- ; v. 32- include Review of the mineral production of India, 1898/1903- ; v. 75 consists of Professional papers, no. 1-16; v. 76 consists of Bulletins of economic minerals. |
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Page 108
... observed are plagioclase , orthopyroxene , clino- pyroxene , biotite and iron oxides . The plagioclase occurs in multiple - twinned plates in the ground- mass of the rock . It is much less in amount in these rocks than in the ...
... observed are plagioclase , orthopyroxene , clino- pyroxene , biotite and iron oxides . The plagioclase occurs in multiple - twinned plates in the ground- mass of the rock . It is much less in amount in these rocks than in the ...
Page 184
... observed in the Chamasari - Paritibba area , the following observations throw some light on the origin of the phosphorite of this area which simulates that of the Chamasari area . The black platy aphanitic phosphorite , which forms a ...
... observed in the Chamasari - Paritibba area , the following observations throw some light on the origin of the phosphorite of this area which simulates that of the Chamasari area . The black platy aphanitic phosphorite , which forms a ...
Page 185
Geological Survey of India. observed . The proportion of magnesia in phosphorite is considerably low . Discussion The above observations suggest a direct precipitation of the phosphate rather than by phosphatisation of early precipitated ...
Geological Survey of India. observed . The proportion of magnesia in phosphorite is considerably low . Discussion The above observations suggest a direct precipitation of the phosphate rather than by phosphatisation of early precipitated ...
Contents
RECORDS | 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 Deflandre deposit Discoaster district endothermic endothermic peak Eocene estherids fauna felspar figs folds foliation Formation fossil gabbro Gangamopteris garnetiferous geochemical Geol Geological Survey glacier gneisses Gondwana grains granitic gray graywacke hill INDIA Records indicate khondalites Krol limestone lodes Lower margins metadolerite metal Middle Andaman mineral mineralisation Mussoorie Nala occur Orissa orthopyroxene oxides para-amphibolite Permian phosphate phosphorite pinnules plagioclase Plate present pyroxene quartz quartzite rocks samples sandstone schist 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 younger ortho-amphibolite Zemu glacier zone