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 3
... structural set - up of the area so as to establish regional stratigraphic sequence and correlation of coal seams present , assess qualitative characteristics and broad structural features and to make a reasonably accura- te estimate of ...
... structural set - up of the area so as to establish regional stratigraphic sequence and correlation of coal seams present , assess qualitative characteristics and broad structural features and to make a reasonably accura- te estimate of ...
Page 5
... structural features from the available surface and sub - surface data is another very important function and responsibility in exploration . This has to be precise , reasonable and practical . Sometimes it appears quite logical to have ...
... structural features from the available surface and sub - surface data is another very important function and responsibility in exploration . This has to be precise , reasonable and practical . Sometimes it appears quite logical to have ...
Page 7
... structural break / fault . The seam can as well assume swing or steepening / flattening from place to place . But normally it is gradual and not abrupt , and the adjacent bore hole data should also agree to such interpretations . For ...
... structural break / fault . The seam can as well assume swing or steepening / flattening from place to place . But normally it is gradual and not abrupt , and the adjacent bore hole data should also agree to such interpretations . For ...
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