Records of the Geological Survey of India, Volume 127, Parts 3-4Government of India, 1992 - Geology Includes the "Annual report of the Geological Survey of India," 1867- |
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Page iv
... indicated further areas covering acid volcanic rocks around Singhbhum craton . Palynological studies of Hooghly eastuary sediments indicated semi - arid conditions during lower Holocene period . Foraminiferal studies of borehole samples ...
... indicated further areas covering acid volcanic rocks around Singhbhum craton . Palynological studies of Hooghly eastuary sediments indicated semi - arid conditions during lower Holocene period . Foraminiferal studies of borehole samples ...
Page 168
... indicate low to moderate permeability values . Oc- currences of pervious zones below the cut - off trench base cannot also be ruled out . Upstream blanket of suitable length has been indicated to stop water loss through the formations ...
... indicate low to moderate permeability values . Oc- currences of pervious zones below the cut - off trench base cannot also be ruled out . Upstream blanket of suitable length has been indicated to stop water loss through the formations ...
Page 79
... indicated bed rock at a depths of 11.0m towards the abutments and 24m at the centre of the river . Excavation of the 253.5m long diversion tunnel located on the left bank of the river is completed . Collapse of the intake portal slope ...
... indicated bed rock at a depths of 11.0m towards the abutments and 24m at the centre of the river . Excavation of the 253.5m long diversion tunnel located on the left bank of the river is completed . Collapse of the intake portal slope ...
Contents
Chhotanagpur Gneiss | 8 |
Geological mapping and geochomical survey to the south | 15 |
Singhbhum Belt and North Singhbhum Shear Zone | 22 |
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ABSTRACTS OF PROGRESS Aizawl alignment amphibolite Andaman anomaly apatite ARUNACHAL PRADESH Assam bands bank basin bed rock belt Bihar biotite block boreholes Brahmaputra carbonatite chert chlorite chromite clay conglomerate Dalma deposits depth district drilling east Engineering Geology erosion exposed EXTENDED ABSTRACTS faults field season flood plain folds foliation Formation geochemical GEOLOGICAL MAP geophysical geotechnical investigation gneiss gold grained granite gneiss grey Group of rocks GSI Rec INDEX indicated Irrigation Keonjhar LATERITE limestone lithounits located manganese Manipur Meghalaya metasedimentary mica schist mineral nala occur Orissa OVERVIEW phyllite Plate proposed Purulia quartz quartz veins quartzite Quaternary regional river samples sand sandstone scale schist sector sedimentary sequence shale Shear Zone Shillong Sikkim silt siltstone Singhbhum granite slope soil spillway sq km sq.km stage geotechnical investigation structures sulphides Supergroup surface SURVEY OF INDIA thick tion toposheet traverses trending tunnel ultramafic unconformably upto volcanics West Bengal