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 105
... bands within the anorthosites , generally following the joint planes of the latter . The relationship of gabbro with anorthosites is clearly seen in a loose boulder of grey anorthosite , blasted out from the Mamu hill , about 2 km ...
... bands within the anorthosites , generally following the joint planes of the latter . The relationship of gabbro with anorthosites is clearly seen in a loose boulder of grey anorthosite , blasted out from the Mamu hill , about 2 km ...
Page 118
... bands . These rocks occur as lenses , bands and stringers of widely varying dimensions in granitic rocks . Petromineralogical studies Mineralogically , the calc - sillicate rocks show wide variation in composition . Clino - pyroxene ...
... bands . These rocks occur as lenses , bands and stringers of widely varying dimensions in granitic rocks . Petromineralogical studies Mineralogically , the calc - sillicate rocks show wide variation in composition . Clino - pyroxene ...
Page 184
... bands is well developed . The bands developed later produced veins and tongues in to the earlier formed bands ( Pl . 19 B ) indicating partial replacement of each other . An authigenic apatite crystal ( Pl . 20 B ) has been found to cut ...
... bands is well developed . The bands developed later produced veins and tongues in to the earlier formed bands ( Pl . 19 B ) indicating partial replacement of each other . An authigenic apatite crystal ( Pl . 20 B ) has been found to cut ...
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