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 9
... volcanics within the serpentinites , patchy and bouldery outcrops of glaucophane bearing schists have been recorded . The width of this zone is limited to a few metres . Glaucophane and quartz are the essential minerals . Glacucophane ...
... volcanics within the serpentinites , patchy and bouldery outcrops of glaucophane bearing schists have been recorded . The width of this zone is limited to a few metres . Glaucophane and quartz are the essential minerals . Glacucophane ...
Page 44
... volcanic ( basalts and andesites ) with some sedimentaries ( quartzites , slates and siltstone ) . Stratigraphy Following is the outline of the stratigraphy of Arunachal Himalaya : Siwaliks Abor Volcanics Yinkiyong Formation Rengging ...
... volcanic ( basalts and andesites ) with some sedimentaries ( quartzites , slates and siltstone ) . Stratigraphy Following is the outline of the stratigraphy of Arunachal Himalaya : Siwaliks Abor Volcanics Yinkiyong Formation Rengging ...
Page 54
... Volcanics . A wide gap existed between the Lower Permian and the Miocene sedimentation . No rocks representative of this inter- val of time were known till recently either in the foot hills region or north of the Abor Volcanics and ...
... Volcanics . A wide gap existed between the Lower Permian and the Miocene sedimentation . No rocks representative of this inter- val of time were known till recently either in the foot hills region or north of the Abor Volcanics and ...
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