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 18
... trenching . A total of 1,652.55m of drilling in eight boreholes ( APP - 7 to 14 ) , 223 cu m of trenching and colleciton of 425 core samples and 200 trench samples were carried out . Six boreholes ( ATP - 7 to 12 ) were drilled along ...
... trenching . A total of 1,652.55m of drilling in eight boreholes ( APP - 7 to 14 ) , 223 cu m of trenching and colleciton of 425 core samples and 200 trench samples were carried out . Six boreholes ( ATP - 7 to 12 ) were drilled along ...
Page 23
... trenching and drilling . The exploratin programme is being continued in zones IV and I of the Kottapalle block . Large scale mapping on 1 : 12,500 and detailed mapping on 1 : 4,000 followed by geochemical sam- pling and trenching in the ...
... trenching and drilling . The exploratin programme is being continued in zones IV and I of the Kottapalle block . Large scale mapping on 1 : 12,500 and detailed mapping on 1 : 4,000 followed by geochemical sam- pling and trenching in the ...
Page 65
... trenching and sampling . The analytical results of most of the samples gave gold values ranging from 1 to 4 g / t , maximum being 19.10 g / t . Drilling in the main zone from 18 drill holes established mineralisation over a considerable ...
... trenching and sampling . The analytical results of most of the samples gave gold values ranging from 1 to 4 g / t , maximum being 19.10 g / t . Drilling in the main zone from 18 drill holes established mineralisation over a considerable ...
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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