Records of the Geological Survey of IndiaThe Survey, 1986 - 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 11
... schists , blue schists and glaucophanitic green schist ( Fig . 8 ) and indicates a very low to low grade metamorphism . The inferred temperature range falls between 200 ° C to 550 ° C and the corresponding pressure ranges from 1 Kb to ...
... schists , blue schists and glaucophanitic green schist ( Fig . 8 ) and indicates a very low to low grade metamorphism . The inferred temperature range falls between 200 ° C to 550 ° C and the corresponding pressure ranges from 1 Kb to ...
Page 28
... schists : The parametamorphic schists occurring in the area from Tezu to Nara river along Tezu - Hayuliang road vary widely in mineral assemblage , grain size and structure . The north- WESTERN EXTENSION OF THIS SCHIST WAS FOUND AROUND ...
... schists : The parametamorphic schists occurring in the area from Tezu to Nara river along Tezu - Hayuliang road vary widely in mineral assemblage , grain size and structure . The north- WESTERN EXTENSION OF THIS SCHIST WAS FOUND AROUND ...
Page 79
... schist , garnetiferous mica schist staurolite - bearing mica schist , sericitic schistose quartzite and paraamphibolite Precambrian The Siang Formation comprises slate , quartz - sericite schist , phyllite , quartz - feldspar - biotite ...
... schist , garnetiferous mica schist staurolite - bearing mica schist , sericitic schistose quartzite and paraamphibolite Precambrian The Siang Formation comprises slate , quartz - sericite schist , phyllite , quartz - feldspar - biotite ...
Contents
PETROLOGY AND CHEMISTRY OF LEUCOCRATIC ROCKS FROM NAGA | 1 |
BLUE SCHISTS C TYPE ECLOGITES AND GARNET BEARING MAFIC | 7 |
THE NICKELIFEROUS MAGNETITE ASSOCIATED WITH THE NAGA | 15 |
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Abor Volcanics albite amphibolite antiform Arunachal Pradesh assemblage basin blue schists calcite Chattopadhyay cherty chlorite chromite coarse colour column Dalbuing Delai river deposits diamictite Disang Formation East Siang district eclogites Eocene epidote facies feldspar float boulders folding foliation foot hills fossils garnet Geol Geological Survey glaucophane gneiss Gondwana grey greyish Hills ophiolite belt hills/ridges Himalaya hornblende host rock Hunli intercalations Ithun valley limestone Lohit Lower mafic mafic segregations magnetite magnetite body Manipur margin matrix medium grained metamorphism mineral Miri Formation Miri Group Naga Hills Naga Hills ophiolite Nagaland nala NE-SW Nummulitic occur oligomictic conglomerate Olistostromal opaques ophiolite Permian phyllite plagioclase plagiogranite Plate quartz quartzite Radiolaria region samples sandstone schist schist band schistose sedimentaries sediments sequence serpentinites shale shows sillimanite siltstone Singh structure Surv Survey of India tectonic thick thin Tidding trending Ukhrul ultramafics Upper upto veins Vidyadharan white quartzite Yinkiong zone