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 125
... younger ortho - amphibolite envelopes the younger metabasics i . e . , metadolerite and metagabbro . Mineralogical distinctions of the three types of amphibolites , the chemical similarities between the para - amphibolite and the calc ...
... younger ortho - amphibolite envelopes the younger metabasics i . e . , metadolerite and metagabbro . Mineralogical distinctions of the three types of amphibolites , the chemical similarities between the para - amphibolite and the calc ...
Page 128
... Younger ortho - amphibolite With increase in hornblende content and attainment of gneissic texture in the advanced stage of metamorphism , metadolerite which represent younger intrusives passes into amphibolite . Relict subophitic ...
... Younger ortho - amphibolite With increase in hornblende content and attainment of gneissic texture in the advanced stage of metamorphism , metadolerite which represent younger intrusives passes into amphibolite . Relict subophitic ...
Page 136
... younger type . The older ortho- amphibolite is further found to contain markedly lower concentrations of Mo , Cr , Be , Y and Ba compared to those of the younger ortho- amphibolite . It contains comparatively higher amount of normative ...
... younger type . The older ortho- amphibolite is further found to contain markedly lower concentrations of Mo , Cr , Be , Y and Ba compared to those of the younger ortho- amphibolite . It contains comparatively higher amount of normative ...
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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Common terms and phrases
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