Records of the Geological Survey of India, Volume 126, Issues 5-6Vols. 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 200
... depths varying from 6 to 20 m . Between Ch 230 and 480 m , fresh rock might occur at 5 to 6 m depth . The rock is weathered to a maximum depth of 20 m at Ch 100 m as noted in the borehole drilled at this location . The deep weathering ...
... depths varying from 6 to 20 m . Between Ch 230 and 480 m , fresh rock might occur at 5 to 6 m depth . The rock is weathered to a maximum depth of 20 m at Ch 100 m as noted in the borehole drilled at this location . The deep weathering ...
Page 176
... depth of 350 m in Tatapani area and to assess the recoverable geothermal energy potential for direct heat utilisation purposes as well as for possible generation of electricity . Drilling of two boreholes GW / Tat / 25 and GW / Tat / 26 ...
... depth of 350 m in Tatapani area and to assess the recoverable geothermal energy potential for direct heat utilisation purposes as well as for possible generation of electricity . Drilling of two boreholes GW / Tat / 25 and GW / Tat / 26 ...
Page 180
... depth of 124 m only . The downhole well testing was done for measuring the ( a ) ( b ) ( c ) ( d ) Pressure & temperature building in wells at regular interval Temperature and pressure gradient in flowing well 12 hours pressure build up ...
... depth of 124 m only . The downhole well testing was done for measuring the ( a ) ( b ) ( c ) ( d ) Pressure & temperature building in wells at regular interval Temperature and pressure gradient in flowing well 12 hours pressure build up ...
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Common terms and phrases
acid amphibolite ANDHRA PRADESH anomaly zones axis bands basalt basin biotite biotite gneiss block boreholes charnockite complex Deccan Trap deformation depth DISTRICT dolerite drilling enclaves ENE-WSW exposed feldspar field season flows folds foliation Formation gabbro geochemical GEOLOGICAL MAP Geology Division Geophysical GEOTECHNICAL INVESTIGATIONS gneiss gneissic gold grained granite granite gneiss granitoids granulite grey Group hornblende INDEX indicated intrusives joints KARNATAKA kimberlite laterite lava lineament located mafic magnetite MAHARASHTRA metabasalt migmatite mineral mineralised zone Nagpur Narmada NE-SW NNW-SSE NW-SE occur pahoehoe pegmatite pink granite plagioclase porphyritic pyrite pyroxene granulite pyroxenite quartz quartz veins quartzite Quaternary regional reservoir rhyolite river rock types Sakoli samples sandstone scale schist schist belt schistose sediments shale shear zone soil spillway sq km strike length structures studies sulphide surveys syenite TAMIL NADU thick toposheet traversed trench trending tunnel ultramafic upto valley volcanics width