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
... bands and thin patches / bands of tuffaceous rocks . Quartz veins traversing the BIF / BFC are common . One NNW - SSE trending dolerite dyke is seen in the Tank block . The regional trend of the formations varies from N75 ° W - S75 ° E ...
... bands and thin patches / bands of tuffaceous rocks . Quartz veins traversing the BIF / BFC are common . One NNW - SSE trending dolerite dyke is seen in the Tank block . The regional trend of the formations varies from N75 ° W - S75 ° E ...
Page 81
... bands are seen in a coun- try rock chiefly represented by argillite / grewacke . Bands of carbonate tuff are invariably seen just adjacent to the main BIF band . These rocks were traversed by both concordant and discordant ba- sic ...
... bands are seen in a coun- try rock chiefly represented by argillite / grewacke . Bands of carbonate tuff are invariably seen just adjacent to the main BIF band . These rocks were traversed by both concordant and discordant ba- sic ...
Page 250
... bands show parallelism with quartz and quartz - ankerite lenses . The BIF bands are made up of alternating layers composed of chert / ferruginous chert / jasper / quartzite / haematite / magnetite / grunerite . The thickness of ...
... bands show parallelism with quartz and quartz - ankerite lenses . The BIF bands are made up of alternating layers composed of chert / ferruginous chert / jasper / quartzite / haematite / magnetite / grunerite . The thickness of ...
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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