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 1
... reserve e estima- tion , belongs to a high degree of reliability . Out of f these " proved " reserves of coal , again only about 10 % is estimated to be of superior quality ( Class - I as per ISP ) , totalling approximately 2,100 mil ...
... reserve e estima- tion , belongs to a high degree of reliability . Out of f these " proved " reserves of coal , again only about 10 % is estimated to be of superior quality ( Class - I as per ISP ) , totalling approximately 2,100 mil ...
Page 11
... reserves are estimated and categorised according to certain postulated and calculated degree of reliability to " proved " , " indicated " and " inferred " reserves , in relation to the quantum of exploratory work carried out and the ...
... reserves are estimated and categorised according to certain postulated and calculated degree of reliability to " proved " , " indicated " and " inferred " reserves , in relation to the quantum of exploratory work carried out and the ...
Page 12
... reserves which fall within 200 m of radius around any known ob- servation point like drill hole , outcrop , mine ... reserves is be- ing largely followed in many regional explorations , it actually gives an erroneous impression ...
... reserves which fall within 200 m of radius around any known ob- servation point like drill hole , outcrop , mine ... reserves is be- ing largely followed in many regional explorations , it actually gives an erroneous impression ...
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