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 107
... noticed . Intensive migmatisation is seen along the fault zone . Fracture cleavages ( S , ) along NE - SW with moderate to steep dips on either side and along NNW - SSE to NW - SE with steep easterly dips are also developed . The linear ...
... noticed . Intensive migmatisation is seen along the fault zone . Fracture cleavages ( S , ) along NE - SW with moderate to steep dips on either side and along NNW - SSE to NW - SE with steep easterly dips are also developed . The linear ...
Page 250
... noticed in the BIF bands . The layers in BIF show convolute structures with thickening in hinges and intrafolial folding . Magnetite and chert form the main constituents of the BIF and pyrite of secondary origin is found scantily in a ...
... noticed in the BIF bands . The layers in BIF show convolute structures with thickening in hinges and intrafolial folding . Magnetite and chert form the main constituents of the BIF and pyrite of secondary origin is found scantily in a ...
Page 251
... noticed in the associated phyllites . These fractures have been filled by blue quartz , at most places . Blue and white quartz ( recrystallised chert ? ) is also noticed along the partings of the BIF parallel to compositional bands ...
... noticed in the associated phyllites . These fractures have been filled by blue quartz , at most places . Blue and white quartz ( recrystallised chert ? ) is also noticed along the partings of the BIF parallel to compositional bands ...
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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