Records of the Geological Survey of India, Volume 114, Part 3The Survey, 1989 - 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 22
... underground methods of mining are in vogue in this coal field almost since the commencement of mining operation . In the past the production of coal was mainly obtained from the surface working quarries or inclines located on or near ...
... underground methods of mining are in vogue in this coal field almost since the commencement of mining operation . In the past the production of coal was mainly obtained from the surface working quarries or inclines located on or near ...
Page 23
... Underground Open cast 1989-90 1994-95 25.74 37.12 8.11 15.57 1999-2000 46.03 17.36 33.85 52 69 63.39 It is evident from the above table that there will be a sharp increase in the production from open cast mines from about 20 % of total ...
... Underground Open cast 1989-90 1994-95 25.74 37.12 8.11 15.57 1999-2000 46.03 17.36 33.85 52 69 63.39 It is evident from the above table that there will be a sharp increase in the production from open cast mines from about 20 % of total ...
Page 27
... underground mine openings indicating old mine fires in underground goafs . Many old damaged and abandoned buildings and mine installations like head gears , abandoned pits / inclined shafts , etc. are also found within the subsided ...
... underground mine openings indicating old mine fires in underground goafs . Many old damaged and abandoned buildings and mine installations like head gears , abandoned pits / inclined shafts , etc. are also found within the subsided ...
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abandoned quarries alluvium Archaean average axis Balasore Barakar Baripada beds BASU Basudebpur Bihar Bihar Mica Belt biotite block calcareous sandy clay charnockite Chotanagpur clay seam cultural mound deposit derelict lands developed excavation folds foliation foundation fractures Ganjam Geol GEOLOGICAL SURVEY geothermal fields gneiss gneissic Gondwana grained granite granite bodies granitic plutons grout hot spring INDIA Records Volume indicate intrusive Khondalite Kolab Koraput district laterites mapping materials metamorphites metre mica schist migmatite mineral nala natural landscape Nilgiri non-porphyritic granite open cast mining Orissa pediplains pegmatites plagioclase porphyritic porphyritic granite ppm ppm ppm present Puri district quarry depressions quartz quartzite Quaternary formations Rammam Raniganj Raniganj coalfield reclamation Records Volume 114 river samples schist Sector seepages shear zones Shri soil SPECTRAL REFLECTANCE sq km structures subsided lands surface Surv SURVEY OF INDIA Taptapani Tarabalue thermal water tion tunnel underground mines Upper Kolab varieties of granite West Bengal