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 80
... varies from N75 ° W - S75 ° E to E - W with steep dips towards north . The rocks in the area have undergone three phases of deformation . The 1st generation defor- mation has produced tight isoclinal overturned folds ( F , ) noticed in ...
... varies from N75 ° W - S75 ° E to E - W with steep dips towards north . The rocks in the area have undergone three phases of deformation . The 1st generation defor- mation has produced tight isoclinal overturned folds ( F , ) noticed in ...
Page 96
... varies from 3 to 4m and may cover an area of 0.25 sq km . The colour of this clay is white to off white and the grit content varies from 40 % to 70 % . The primary clay is the product of in situ kaolinisation of the feldspars of the ...
... varies from 3 to 4m and may cover an area of 0.25 sq km . The colour of this clay is white to off white and the grit content varies from 40 % to 70 % . The primary clay is the product of in situ kaolinisation of the feldspars of the ...
Page 119
... varies from place to place . In all , six pyroxenite bands are demorcated in the Torappadi hill area . The width of these bands varies from 10 to 35m and length from 1 km to 6km . The maximum exposed strike length of 6 km is noticed in ...
... varies from place to place . In all , six pyroxenite bands are demorcated in the Torappadi hill area . The width of these bands varies from 10 to 35m and length from 1 km to 6km . The maximum exposed strike length of 6 km is noticed in ...
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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