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 21
... studies of selected samples were undertaken to resolve the problem further . The studies were undertaken by Shri P.K. Basu in the EMX laboratory ( Came ca model MS - 46 ) of GSI , Calcutta . Electron Probe Analyses ( i ) ( ii ) ( iii ) ...
... studies of selected samples were undertaken to resolve the problem further . The studies were undertaken by Shri P.K. Basu in the EMX laboratory ( Came ca model MS - 46 ) of GSI , Calcutta . Electron Probe Analyses ( i ) ( ii ) ( iii ) ...
Page 23
... studies reveal that the chromite and magne- tite are conspicuously free of Ni . Entire Ni is fixed in the goethite matrix . Apart from the low degree of substi- tution in goethite , a discrete Fe - Ni hydroxide is also suggested . ( v ) ...
... studies reveal that the chromite and magne- tite are conspicuously free of Ni . Entire Ni is fixed in the goethite matrix . Apart from the low degree of substi- tution in goethite , a discrete Fe - Ni hydroxide is also suggested . ( v ) ...
Page 41
... studies Aerial photo interpretation and the ground studies re- vealed that the area of study can be clearly demarcated into areas of lower and higher reliefs and further into areas of structural hills / ridges and denudational hills ...
... studies Aerial photo interpretation and the ground studies re- vealed that the area of study can be clearly demarcated into areas of lower and higher reliefs and further into areas of structural hills / ridges and denudational hills ...
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