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
... margin and wavy extinction . ( 5 ) Luthur area Garnetiferous amphibolites are present within the sheared ... margins shearing effect and blue pleochroism is seen . Hornblende is altered to chlorite , fibrous tremolite / acti- nolite and ...
... margin and wavy extinction . ( 5 ) Luthur area Garnetiferous amphibolites are present within the sheared ... margins shearing effect and blue pleochroism is seen . Hornblende is altered to chlorite , fibrous tremolite / acti- nolite and ...
Page 16
... margin towards the core of the grains and the mesh structure ( Plate 3.1 ) thus 2Vz of olivine varies from 72-75 ° . Besides occurring as intergranular material , the opaques ( chromite ) are also concentrated along the margins of the ...
... margin towards the core of the grains and the mesh structure ( Plate 3.1 ) thus 2Vz of olivine varies from 72-75 ° . Besides occurring as intergranular material , the opaques ( chromite ) are also concentrated along the margins of the ...
Page 65
... margin followed by a major phase of gravity sliding . These are most likely to develop along the steep slopes of a continental margin at the foot of a trench well or a deeply incised canyon . Thus , the synoro- genic Olistostromal ...
... margin followed by a major phase of gravity sliding . These are most likely to develop along the steep slopes of a continental margin at the foot of a trench well or a deeply incised canyon . Thus , the synoro- genic Olistostromal ...
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