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 37
... sillimanite resources are dwindling year by year and the float boulders of sillimanite and corrundum continue to be the main source of production for the mining concerns . A search is on to locate insitu and float deposits . A study was ...
... sillimanite resources are dwindling year by year and the float boulders of sillimanite and corrundum continue to be the main source of production for the mining concerns . A search is on to locate insitu and float deposits . A study was ...
Page 41
... sillimanite bearing schist band were the most favourable locales for the concentration of sillimanite and corrundum float boulders . The 1st order streams are too near and 4th order streams too far away from the insitu schist band , to ...
... sillimanite bearing schist band were the most favourable locales for the concentration of sillimanite and corrundum float boulders . The 1st order streams are too near and 4th order streams too far away from the insitu schist band , to ...
Page 42
... Sillimanite - Corrundum mineralisation in Sonapahar area , West Khasi Hills district , Meghalaya . in press PRAKASH , P. , 1982 : A report on the studies on dispersal and concentration of sillimanite and corrundum float in Sona- pahar ...
... Sillimanite - Corrundum mineralisation in Sonapahar area , West Khasi Hills district , Meghalaya . in press PRAKASH , P. , 1982 : A report on the studies on dispersal and concentration of sillimanite and corrundum float in Sona- pahar ...
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