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 4
... range of normal variations from place to place ; presence or absence of characteristic band / s ( of shale , sandstone , ferruginous material , etc. ) and their mode of occur- rence , distribution ( erratic or at definite horizon / s ) ...
... range of normal variations from place to place ; presence or absence of characteristic band / s ( of shale , sandstone , ferruginous material , etc. ) and their mode of occur- rence , distribution ( erratic or at definite horizon / s ) ...
Page 37
... Range in values , A.A. — Arithmatic Average ) Ni - content In Pebbles Vis - a - Vis Matrix As the pebbly zone of the ... ranges average as 1:12 , while in ' C ' horizon the Co Ni ratio ranges from 1 : 9 to 1:52 with average of 1:23 ...
... Range in values , A.A. — Arithmatic Average ) Ni - content In Pebbles Vis - a - Vis Matrix As the pebbly zone of the ... ranges average as 1:12 , while in ' C ' horizon the Co Ni ratio ranges from 1 : 9 to 1:52 with average of 1:23 ...
Page 100
... ( range 0.464 to 0.748 ) ratios indicate their affinity to alpine chromites ( Irvine , 1967 ; Thayer , 1969 , 1970 ) ... ranges from from Manipur and Nagaland Table 3. It may be seen that 25.34 to 55.38 percent ; Si02 varies from 0.38 to ...
... ( range 0.464 to 0.748 ) ratios indicate their affinity to alpine chromites ( Irvine , 1967 ; Thayer , 1969 , 1970 ) ... ranges from from Manipur and Nagaland Table 3. It may be seen that 25.34 to 55.38 percent ; Si02 varies from 0.38 to ...
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