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 34
... Bedrock The dominant types of bedrock of both the areas are various sub - facies of ultramafics viz , pyr- oxenite , peridotite , dunite etc with minor rafts of sedimentaries , which include sandstone , shale , phy- llite . quartzite ...
... Bedrock The dominant types of bedrock of both the areas are various sub - facies of ultramafics viz , pyr- oxenite , peridotite , dunite etc with minor rafts of sedimentaries , which include sandstone , shale , phy- llite . quartzite ...
Page 45
... bedrock but the limited mineralogical , chemical and statistical data presented here suggest that the Ni - content in the soil profile is probably not directly related to any particular mineral phase which could be linked up with the ...
... bedrock but the limited mineralogical , chemical and statistical data presented here suggest that the Ni - content in the soil profile is probably not directly related to any particular mineral phase which could be linked up with the ...
Page 77
... bedrock ( 5000 m / sec ) and overburden ( 1800 m / sec ) . The depth of the bedrock is another factor which influences the reflections . Under the existing conditions , the reflections with enhanced energy are observed at the geophones ...
... bedrock ( 5000 m / sec ) and overburden ( 1800 m / sec ) . The depth of the bedrock is another factor which influences the reflections . Under the existing conditions , the reflections with enhanced energy are observed at the geophones ...
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