Records of the Geological Survey of India, Volume 126, Parts 3-5Government of India, 1991 - Geology Includes the "Annual report of the Geological Survey of India," 1867- |
From inside the book
Results 1-3 of 82
Page 13
... types encountered in the mapped area are Precambrian Gneissic Complex and the older supracrustals which are unconformably overlain by Tertiary sequence of Barail , Surma and Tipam Groups . The major rock types exposed in parts of ...
... types encountered in the mapped area are Precambrian Gneissic Complex and the older supracrustals which are unconformably overlain by Tertiary sequence of Barail , Surma and Tipam Groups . The major rock types exposed in parts of ...
Page 26
... type . Two types of biotite occur ( i ) a green variety having dark green to colourless pleochroism ( ferrian biotite ) and ( 2 ) a brown variety which is pleochroic from reddish brown / dark brown to pale yellow / straw yellow ( Fe ...
... type . Two types of biotite occur ( i ) a green variety having dark green to colourless pleochroism ( ferrian biotite ) and ( 2 ) a brown variety which is pleochroic from reddish brown / dark brown to pale yellow / straw yellow ( Fe ...
Page 133
... types including the pink granite along WNW - ESE and NE - SW directions . Further , minor sheared fine - grained basaltic dykes are also seen . The foliation trend of the rock types varies from N20 ° to 40 ° E - S20 ° to 40 ° W with ...
... types including the pink granite along WNW - ESE and NE - SW directions . Further , minor sheared fine - grained basaltic dykes are also seen . The foliation trend of the rock types varies from N20 ° to 40 ° E - S20 ° to 40 ° W with ...
Contents
Quaternary geological and geomorphological mapping of the SonGanga | 2 |
An Overview | 10 |
Integrated geological and structural mapping and geochemical survey | 17 |
Copyright | |
13 other sections not shown
Other editions - View all
Common terms and phrases
alignment amphibolite ANDHRA PRADESH anomaly zones apatite bands basemetal basin BIHAR biotite block boreholes carried chalcopyrite charnockite chlorite chlorite schist chromite Code construction depth DISTRICT dolerite drilling dykes east eastern Engineering Geology exposed field season flood folds foliation Formation foundation gabbro geochemical GEOLOGICAL MAP geophysical GEOTECHNICAL INVESTIGATION gneiss gneissic gold granite granite gneiss granitoids granulite grey Group grouting hill hornblende INDEX indicated intersected intrusives Irrigation Project joints KARNATAKA kimberlite laterite limestone lithounits located magnetite metabasalt migmatite mineral mineralised zone occur Orissa pegmatite phyllite pink power house proposed pyrite pyroxenite quartz quartz veins quartzite Quaternary reservoir river rock types samples sandstone scale schist schist belt schistose shale shear zone Singhbhum slope soil Sp Sp Sp spillway sq km STAGE GEOTECHNICAL INVESTIGATION strike length structure studies suggested sulphide surface surveys syenite thick toposheet traverse trench trending tunnel ultramafic upto valley volcanics width Δ Δ Δ