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
... Valley alkaline ultramafic carbonatite complex , an oval - shaped body covering about 26 sq km area around Sung in Meghalaya , is intrusive into Proterozoic Shillong Group . The body is zoned with partial development of ring structure ...
... Valley alkaline ultramafic carbonatite complex , an oval - shaped body covering about 26 sq km area around Sung in Meghalaya , is intrusive into Proterozoic Shillong Group . The body is zoned with partial development of ring structure ...
Page 48
... valley , Subansiri district was con- sidered equivalent of Abor Volcanic Series by Laskar ( 1956 ) . The sequence of volcanic rocks and sedimentary beds are now included under the Abor Group . The Abor Group is found in the Lesser Hima ...
... valley , Subansiri district was con- sidered equivalent of Abor Volcanic Series by Laskar ( 1956 ) . The sequence of volcanic rocks and sedimentary beds are now included under the Abor Group . The Abor Group is found in the Lesser Hima ...
Page 50
... valley , Dite - Dima in the Siang district . The acidic variants are found north of Boleng in the Siang district . De- tails of the volcanic flows associated with the different formations are given later . Diamictite This formation ...
... valley , Dite - Dima in the Siang district . The acidic variants are found north of Boleng in the Siang district . De- tails of the volcanic flows associated with the different formations are given later . Diamictite This formation ...
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