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 65
... indicated gold min- eralisation . In Ajjanahalli block , further drilling helped in establishing additonal strike and dip extensions of the auriferous zone over 150 m and 100 m , respec- tively . The width of the zone varies from 2 to ...
... indicated gold min- eralisation . In Ajjanahalli block , further drilling helped in establishing additonal strike and dip extensions of the auriferous zone over 150 m and 100 m , respec- tively . The width of the zone varies from 2 to ...
Page 125
... indicated gold content upto 0.6 g / t . A geochemical anomaly map ( Plate - 3 ) was prepared based on the number of gold specks present at each sample point ( in 13.5 kg of sam- ples ) and it has indicated a significant anomalous zone ...
... indicated gold content upto 0.6 g / t . A geochemical anomaly map ( Plate - 3 ) was prepared based on the number of gold specks present at each sample point ( in 13.5 kg of sam- ples ) and it has indicated a significant anomalous zone ...
Page 222
... indicated more or less 3 to 5 layers.The resistivity of the top 3 to 4 layers is of the order of 2 to 10 ohm m underlined by very high resistive layer ( infinite ) . The depth to the bedrock , in general , varies from 4 to 9 meters ...
... indicated more or less 3 to 5 layers.The resistivity of the top 3 to 4 layers is of the order of 2 to 10 ohm m underlined by very high resistive layer ( infinite ) . The depth to the bedrock , in general , varies from 4 to 9 meters ...
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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