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 74
... basic granulites , calc - silicates and metabasic rocks . Two phases of basic igneous activity , represented by an early phase of meta - gabbro / amphibolite followed by a younger basic / ultrabasic phase , were recorded after the ...
... basic granulites , calc - silicates and metabasic rocks . Two phases of basic igneous activity , represented by an early phase of meta - gabbro / amphibolite followed by a younger basic / ultrabasic phase , were recorded after the ...
Page 81
... basic granulites , viz . , granulitic norite and two pyroxene granulite and acid granu- lites represented by charnockite and leptynite . The area witnessed two phases of basic igneous activity after the formation of basic granulites ...
... basic granulites , viz . , granulitic norite and two pyroxene granulite and acid granu- lites represented by charnockite and leptynite . The area witnessed two phases of basic igneous activity after the formation of basic granulites ...
Page 83
... basic granulites to a level of less than 20 km depth at the time . of breakdown of hypersthene - plagiolcase assemblage where frozen - in - equilibrium was attained in the new P - T con- dition . The shear zones present in the area ...
... basic granulites to a level of less than 20 km depth at the time . of breakdown of hypersthene - plagiolcase assemblage where frozen - in - equilibrium was attained in the new P - T con- dition . The shear zones present in the area ...
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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Common terms and phrases
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