Records of the Geological Survey of India, Volume 112, Part 3government of India., 1982 - Geology 1867- includes the "Annual report of the Geological survey of India". |
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Page 45
... stowed area of underground coal working . Of the different geophysical methods tried , only the electrical re- sistivity method using the gradient mode of electrode array has brought out significant features over unstowed and goaf zones ...
... stowed area of underground coal working . Of the different geophysical methods tried , only the electrical re- sistivity method using the gradient mode of electrode array has brought out significant features over unstowed and goaf zones ...
Page 45
... stowed ; 2 ) where underground coal seam is worked in sections , the bottom section coal is left intact for extraction at a later date , middle section depillared and sand - stowed , and top section filled in by caved roof material ; 3 ...
... stowed ; 2 ) where underground coal seam is worked in sections , the bottom section coal is left intact for extraction at a later date , middle section depillared and sand - stowed , and top section filled in by caved roof material ; 3 ...
Page 45
... stowed zones . Traverse T11 , near the tri - junction of Nayadih Kusunda , Pure Kustore and Godhur collieries ( Fig . 5 ) depicts the response over the boundary coal block depth 40 m of the X coal seam working , sur- rounded by goaf ...
... stowed zones . Traverse T11 , near the tri - junction of Nayadih Kusunda , Pure Kustore and Godhur collieries ( Fig . 5 ) depicts the response over the boundary coal block depth 40 m of the X coal seam working , sur- rounded by goaf ...
Contents
OF | 1 |
Some aspects of the geochemistry of Dhanjori Volcanics Singhbhum District | 7 |
Geology and Structure of Southern Gangpur Bonaigarh Region Sundargarh | 13 |
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analysis andradite anomaly average axial plane Badampahar bands basaltic basin bauxite beds Bihar biotite calc-gneiss chalcopyrite channel chlorite cleavage Coalfield conglomerate deformation deposits Dhanbad district Dhanjori epidiorite district dolerite dykes eastern ENE-WSW epidiorite epidote F₁ facies fold fossils fractures Gangpur Gangpur Group garnet-rock Geol GEOLOGICAL SURVEY Geophysical gibbsite gneiss Godhur grains granite gneiss gravity Group-I Group-II rocks Group-III Hazaribagh Hazaribagh district hornblende host rock INDIA Records indicated kaolinite Karharbari Formation Keonjhar Khola Kusunda laterite lavas limb massive garnet metamorphic metavolcanic metres mica schists mineralisation minerals muscovite Nausahi North Karanpura occur Orissa pegmatite phyllite plagioclase Plate plunging quartz quartzite Rajgir Rangpo Region resistivity samples sandstone saprolite Sarkar scale schist schistose sedimentary sediments sequence sericite shales shear shows Singhbhum skarn southern stowed structures sulphide Surv SURVEY OF INDIA syncline synformal textural thickness traverse trend ultrabasic rock unstowed vein quartz volcanics