Records of the Geological Survey of India, Volume 113, Part 4The Survey, 1984 - 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 25
... Serpentinite Serpentinite occurs along the central part of the complex and is surrounded by the pyroxenite except along east where it is directly in contact with quart- zite . Late serpentinite dykes and veins are locally common . In ...
... Serpentinite Serpentinite occurs along the central part of the complex and is surrounded by the pyroxenite except along east where it is directly in contact with quart- zite . Late serpentinite dykes and veins are locally common . In ...
Page 25
... serpentinite body of the complex is derived from an enstatite - rich rock . The radioactive magnetite - per- ovskite - rich serpentinite , derived from enstatite - dio- psidic augite rock appears to be a later differentiate . Both the ...
... serpentinite body of the complex is derived from an enstatite - rich rock . The radioactive magnetite - per- ovskite - rich serpentinite , derived from enstatite - dio- psidic augite rock appears to be a later differentiate . Both the ...
Page 30
... serpentinite - pyroxenite and Mawiong radioactive pyroxenite serpentinite show interesting variation ( Table 2 ) . Average Ni and Co contents in the main serpentinites are around 1566 ppm and 124 ppm while in the pyroxenites they are ...
... serpentinite - pyroxenite and Mawiong radioactive pyroxenite serpentinite show interesting variation ( Table 2 ) . Average Ni and Co contents in the main serpentinites are around 1566 ppm and 124 ppm while in the pyroxenites they are ...
Contents
GEOLOGICAL SURVEY OF INDIA | 1 |
Problems of correlation of PreGondwana rock units of Arunachal Pradesh and adjoining areasa review | 15 |
The Abor Group of rocks in Arunachal Pradesh | 48 |
7 other sections not shown
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Common terms and phrases
Abor Volcanic Arunachal Pradesh assemblage associated axial bands basement bedrock beds belt biotite bore holes Buxa carbonatite Chattopadhyay chert chromite coal seam coalfields complex correlation Cretaceous crystalline Daling Darjeeling developed Disangs dykes exploration fault folds Formation Gamnom garnierite geochemical Geol Geological Survey GHOSH gneiss goethite Gondwana Grade grains granite Group Himalayas horizon ijolite Khasi limestone lineaments Lohit Lohit district Manipur Manipur East Maskut Meghalaya metamorphic migmatites mineral Mishmi Naga Hills Nagaland Nandy nepheline Ni-content North Eastern occur ophiolite ophiolite suite overburden phase Phokphur Plate postulated pyroxene pyroxenite quartz quartzite Ranga valley reflected refraction regional river rocks samples sandstone schist seam/s sedimentary sediments sequence serpentinite shale Shillong Siang district sillimanite Sirohi soil profile Sonapahar stratigraphic structural studies sub-surface Subansiri district Sung Valley Survey of India tectonic Tertiary thickness thrust Tidding serpentinites tion trending ultramafics Unpublished GSI Report upto veins zone