Records of the Geological Survey of India, Volume 125, Parts 3-5Government of India, 1990 - Geology Includes the "Annual report of the Geological Survey of India," 1867- |
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Page 99
... veins were noted by GSI during 1964-69 . However , no systematic sampling of the quartz veins was carried out to ascertain the presence of tungsten mineralisation . The find of colluvial wolfram floats on the hillock near Arhala ( 22 ...
... veins were noted by GSI during 1964-69 . However , no systematic sampling of the quartz veins was carried out to ascertain the presence of tungsten mineralisation . The find of colluvial wolfram floats on the hillock near Arhala ( 22 ...
Page 31
... quartz - chlorite - sericite schist zone traversed by quartz - ankerite veins and banded iron formation containing occasional sulphides and specular haematite . Analytical results of the samples are awaited . Geobotanical samples of the ...
... quartz - chlorite - sericite schist zone traversed by quartz - ankerite veins and banded iron formation containing occasional sulphides and specular haematite . Analytical results of the samples are awaited . Geobotanical samples of the ...
Page 71
... quartz veins and silicification has a general NNW - SSE trend with individual veins showing NW - SE to NNE - SSW trends . The quartz veins vary in length from less than 5m to more than 50m and in thickness from few centimetres to more ...
... quartz veins and silicification has a general NNW - SSE trend with individual veins showing NW - SE to NNE - SSW trends . The quartz veins vary in length from less than 5m to more than 50m and in thickness from few centimetres to more ...
Contents
Studies of granites of Hazaribagh Gaya and Palamau districts Bihar | 7 |
Geological mapping around PindaraBiharbariBaghmari area Bhagalpur district Bihar | 13 |
FIELD SEASON 199091 | 91 |
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alignment amphibolite ANDHRA PRADESH anomaly bands basemetal basin Bihar biotite block boreholes charnockite chromite clay comprises CONSTRUCTION STAGE GEOTECHNICAL deposits depth DISTRICT dolerite drilled dykes earth dam east eastern Engineering Geology Engineering Geology Division excavation exposed field season folds foliation Formation geochemical GEOLOGICAL MAP geophysical Geotechnical and Special GEOTECHNICAL INVESTIGATION gneiss gold grained granite granite gneiss granitoid granulite grey Group grouting hill holes hornblende indicated irrigation joints KARNATAKA khondalite kimberlite laterite limestone located magnetite Meghalaya migmatite mineral mineralised zone nala occur Orissa pegmatite phyllite pink granite plagioclase power house proposed pyrite pyroxenite quartz quartz veins quartzite Quaternary Regional Geology reservoir river rock types samples sandstone scale schist schist belt schistose sediments shale shear zone Shillong Singhbhum slope soil Special Investigation spillway sq km stage geotechnical investigation strike length structure sulphide surveys syenite thick traverses trending tunnel upto volcanics West Bengal