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 64
... chert band with basalts , 2 km east of Bannipop has been traced . Spot samples of these silicified chert rocks in- dicated 0.1-0.18 g / t Au with occasional Zn values rising upto 0.13 % . PROJECT : CHITRADURGA SCHIST BELT OVERVIEW G.V. ...
... chert band with basalts , 2 km east of Bannipop has been traced . Spot samples of these silicified chert rocks in- dicated 0.1-0.18 g / t Au with occasional Zn values rising upto 0.13 % . PROJECT : CHITRADURGA SCHIST BELT OVERVIEW G.V. ...
Page 229
... chert . Anomaly zone - IV is traced over BIF / chert band continuously for a length of 1,100 m . The second and thrid zones are associated with moderate resistivities ( 800-1400 ohm - m ) , where I and IV zones are characterised by low ...
... chert . Anomaly zone - IV is traced over BIF / chert band continuously for a length of 1,100 m . The second and thrid zones are associated with moderate resistivities ( 800-1400 ohm - m ) , where I and IV zones are characterised by low ...
Page 250
... chert / ferruginous chert / jasper / quartzite / haematite / magnetite / grunerite . The thickness of individual layers ranges from a few millimetres to 8 cm and each layer shows fine laminations of the adjacent layers in the ...
... chert / ferruginous chert / jasper / quartzite / haematite / magnetite / grunerite . The thickness of individual layers ranges from a few millimetres to 8 cm and each layer shows fine laminations of the adjacent layers in the ...
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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