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 24
... pyroxenite and surrounded by diopsidic augite - bearing pyroxenite . Melilite - pyroxene rock , often olivine - rich , occurs as large ovoid bodies as well as dykes and veins . Ijolitic rock , mainly ijolite occurs as small lenses ...
... pyroxenite and surrounded by diopsidic augite - bearing pyroxenite . Melilite - pyroxene rock , often olivine - rich , occurs as large ovoid bodies as well as dykes and veins . Ijolitic rock , mainly ijolite occurs as small lenses ...
Page 25
... Pyroxenite Pyroxenite is the most abundant rock type and acts as the host for all the rock types developed with- in the complex excepting serpentinite . It is coarse- grained , individual grains being 5 mm - 15 mm across , pale green to ...
... Pyroxenite Pyroxenite is the most abundant rock type and acts as the host for all the rock types developed with- in the complex excepting serpentinite . It is coarse- grained , individual grains being 5 mm - 15 mm across , pale green to ...
Page 30
... 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 around 70 ppm and ...
... 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 around 70 ppm and ...
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