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 29
... rock . This band is also exposed along Rohing - Hunli road near Hunli . Southeast of Hunli along the foot tract to Pika village the band shows splitting and again coalescing . In hand specimen , the rock is dark shiny grey , lusturous ...
... rock . This band is also exposed along Rohing - Hunli road near Hunli . Southeast of Hunli along the foot tract to Pika village the band shows splitting and again coalescing . In hand specimen , the rock is dark shiny grey , lusturous ...
Page 30
... rock is dioritic in mineral composition but close to its northern margin in Ithun valley , inseperable bands of granodiorite and tonalite are seen . The rock is medium to light grey in colour , somewhat massive and coarse grained ...
... rock is dioritic in mineral composition but close to its northern margin in Ithun valley , inseperable bands of granodiorite and tonalite are seen . The rock is medium to light grey in colour , somewhat massive and coarse grained ...
Page 31
... rock is dark gree- nish grey in colour , coarse grained and shows relict igneous texture . The rock is composed mainly of bluish green elonga- ted crystals of hornblende and plagioclase . Thin sections show micas formed at the expense ...
... rock is dark gree- nish grey in colour , coarse grained and shows relict igneous texture . The rock is composed mainly of bluish green elonga- ted crystals of hornblende and plagioclase . Thin sections show micas formed at the expense ...
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