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 5
... thickness , partings , etc and the area in addition is structurally disturbed , corela- tion of seams becomes a very difficult problem . Το overcome these difficulties in sub - surface correlation of coal seams , the following aspects ...
... thickness , partings , etc and the area in addition is structurally disturbed , corela- tion of seams becomes a very difficult problem . Το overcome these difficulties in sub - surface correlation of coal seams , the following aspects ...
Page 12
... thickness of the indi- vidual coal seam to get the volume of coal . This volume is multiplied by the specific gravity of the particular coal seam ( which is different as per quali- ty of coal ) to arrive at the tonnage available . The ...
... thickness of the indi- vidual coal seam to get the volume of coal . This volume is multiplied by the specific gravity of the particular coal seam ( which is different as per quali- ty of coal ) to arrive at the tonnage available . The ...
Page 50
... thickness from 200m to 300 m is best developed in the Kameng and Siang districts . It occurs above the Miri / Buxa ... thickness from 20 m to 400 m comprises black shales containing pyriteous , cherty and calcareous nodules with marine ...
... thickness from 200m to 300 m is best developed in the Kameng and Siang districts . It occurs above the Miri / Buxa ... thickness from 20 m to 400 m comprises black shales containing pyriteous , cherty and calcareous nodules with marine ...
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