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 79
... suite of rocks . The magnetic high value value is also reflected in the Ni , and Cr profiles with usual shift . Section BB ' This magnetic profile also passing mostly over ultramafics with a few zones of shearing and cru- hing . has ...
... suite of rocks . The magnetic high value value is also reflected in the Ni , and Cr profiles with usual shift . Section BB ' This magnetic profile also passing mostly over ultramafics with a few zones of shearing and cru- hing . has ...
Page 89
... suite . A few radiolarians have also been recorded from the Disangs . Though the assemblage has a distinct Cretaceous aspect , it is difficult to assign any precise age . However , based on the associated coccolithosphorids , the ...
... suite . A few radiolarians have also been recorded from the Disangs . Though the assemblage has a distinct Cretaceous aspect , it is difficult to assign any precise age . However , based on the associated coccolithosphorids , the ...
Page 98
... suite . The high Cr203 ( > 45 percent ) and low TiO2 content chromites and their Cr / Cr Al ( 0.592 to 0.882 ) and Mg / Mg + Fe2 + ( 0.464 to 0.748 ) ratios are more similar to those of the alpine type . From metallurgical point of view ...
... suite . The high Cr203 ( > 45 percent ) and low TiO2 content chromites and their Cr / Cr Al ( 0.592 to 0.882 ) and Mg / Mg + Fe2 + ( 0.464 to 0.748 ) ratios are more similar to those of the alpine type . From metallurgical point of view ...
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 |
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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