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 27
... drilled to test the old workings and the gossan zone for gold . As the re- sults were not encouraging , the drilling was closed In the Dona ( Temple ) Block , gold minerlisation occurs along the shear zone in metabasalt and its contact ...
... drilled to test the old workings and the gossan zone for gold . As the re- sults were not encouraging , the drilling was closed In the Dona ( Temple ) Block , gold minerlisation occurs along the shear zone in metabasalt and its contact ...
Page 65
... Drilling in the main zone from 18 drill holes established mineralisation over a considerable strike length and vertical depth . The average gold content is 3.14 g / t and Ag 88 g / t over a good average width . In additon , geochemical ...
... Drilling in the main zone from 18 drill holes established mineralisation over a considerable strike length and vertical depth . The average gold content is 3.14 g / t and Ag 88 g / t over a good average width . In additon , geochemical ...
Page 133
... drilling in the IV - level was continued . Shallow boreholes were also drilled to collect bulk samples for benefication studies . Regional geological studies and exploration by scout drilling in other blocks , viz . , Velampatti North ...
... drilling in the IV - level was continued . Shallow boreholes were also drilled to collect bulk samples for benefication studies . Regional geological studies and exploration by scout drilling in other blocks , viz . , Velampatti North ...
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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