Records of the Geological Survey of India, Volume 129, Part 5Government of India, 1994 - Geology Includes the "Annual report of the Geological Survey of India," 1867- |
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Page 131
... shear zone trending NNE - SSW over a distance of 28 km from Harur in the SW to Uttangarai in the NE . The Shear zone and associated quartz veins show incidence of Mo and Pb minerlisation . The 14 km along belt south of the Ponnaiyar ...
... shear zone trending NNE - SSW over a distance of 28 km from Harur in the SW to Uttangarai in the NE . The Shear zone and associated quartz veins show incidence of Mo and Pb minerlisation . The 14 km along belt south of the Ponnaiyar ...
Page 133
... shear zone varies from 4 to 34 m . The shear zone imme- diately north of Ponnaiyar is continuously traceable for 300 m with a width of 20 to 34 m , beyond which for another 150 m the shear zone is split , with western ( main shear zone ) ...
... shear zone varies from 4 to 34 m . The shear zone imme- diately north of Ponnaiyar is continuously traceable for 300 m with a width of 20 to 34 m , beyond which for another 150 m the shear zone is split , with western ( main shear zone ) ...
Page 138
... shear zone has a trend of N - S in the southern part veering to NNW- SSE in the central and NNE - SSW in the northern ( Plate - 2 ) . A total of 262 cu m trenching was car- ried out at intervals of 50-100m to expose and trace the shear zone ...
... shear zone has a trend of N - S in the southern part veering to NNW- SSE in the central and NNE - SSW in the northern ( Plate - 2 ) . A total of 262 cu m trenching was car- ried out at intervals of 50-100m to expose and trace the shear zone ...
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Common terms and phrases
acid volcanics amphibolite ANANTAPUR DISTRICT ANDHRA PRADESH anomaly zones anorthosite assessment auriferous banded iron formation beach ridges bedrock beds BIF bands biotite biotite gneiss block boreholes carried charnockite chert Chitradurga clay delineated deposits depth Dharwar dips dolerite drilling dykes east eastern emplaced ENE-WSW excavated exposed field season folds foliation foundation gabbro geochemical GEOLOGICAL MAP geophysical geotechnical investigations gneiss Gneissic gold mineralisation granite gneiss granulite gravity grey grout hornblende INDEX indicated intrusives joints KARNATAKA KERALA kimberlite laterite lignite limestone lineament located mafic magnetic metabasalt migmatites mineral mineralised zones NE-SW NNW-SSE NW-SE occur overburden pegmatite Plate power house PROJECT pyrite quartz quartz veins quartzite regional reservoir river rock types samples scale schist belt schistose sediments shear zone slope soil southern spillway sq km strike length structural studies sulphides surveys TAMIL NADU thickness traversed trenching trending tunnel ultramafic upto vertical weathered width