Records of the Geological Survey of India, Volume 130, Part 3Government of India, 1995 - Geology Includes the "Annual report of the Geological Survey of India," 1867- |
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Page 31
... aquifers , generally occur in the depth range of 18.24 m to 68.0 m bgl . There had been a belief till recently that deep aquifers are free from As - pollution . The belief has been dashed by the detection of As in tubewell waters in ...
... aquifers , generally occur in the depth range of 18.24 m to 68.0 m bgl . There had been a belief till recently that deep aquifers are free from As - pollution . The belief has been dashed by the detection of As in tubewell waters in ...
Page 32
... aquifers varies from 18.24m to 68.0 m bgl , though high values of Arsenic have also been noted in deeper aquifers upto a depth of 240 m bgl as in Gobardanga ( 150 ppb ) in 24 - Parganas ( North ) . The subsurface water in the areas ...
... aquifers varies from 18.24m to 68.0 m bgl , though high values of Arsenic have also been noted in deeper aquifers upto a depth of 240 m bgl as in Gobardanga ( 150 ppb ) in 24 - Parganas ( North ) . The subsurface water in the areas ...
Page 47
... aquifer occurs down to a depth upto 13m bgl under unconfined condition . The depth to water of this aquifer varies from 1-6m bgl and slopes towards west . A shallow confined essentially brackish water aquifer occurs between 30 m and 45 ...
... aquifer occurs down to a depth upto 13m bgl under unconfined condition . The depth to water of this aquifer varies from 1-6m bgl and slopes towards west . A shallow confined essentially brackish water aquifer occurs between 30 m and 45 ...
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Common terms and phrases
amphibolite anomaly aquifers bands Bankura BARGARH DISTRICT basemetal basin bed rock belt Bihar biotite block borehole Chhotanagpur chlorite clay coastal CONSTRUCTION STAGE GEOTECHNICAL cratonic Dalma depth Dhanjori Dimension Stone Director district drilling earth dam east Engineering Geology environmental fault feldspar field season fold foliation Formation Ganga Gangpur geochemical Geoenvironmental GEOLOGICAL MAP GEOLOGICAL SURVEY Geophysical GEOTECHNICAL INVESTIGATION gneiss gold values Gondwana grained granite granite gneiss granitoids grey Group of rocks INDEX indicate irrigation Keonjhar land laterite lineament lithounits located mica schist minerals nala occur Orissa ORISSA Code OVERVIEW pegmatite phyllite potential present Project Engineering Geology Proterozoic Purulia quartz quartz veins quartzite Quaternary river rock types sand sandstone scale schist sector sequence shale shear zone Sikkim Singhbhum slope soil spillway sq km STAGE GEOTECHNICAL INVESTIGATION stream sediment samples sulphide Sundargarh surface SURVEY OF INDIA terrain thickness toposheet trending ultramafic upto volcanics West Bengal