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 14
... continued with emphasis on geochemical surveys in the remaining part of the belt . In the Nellore mica belt , extending for 60 km south of Pennar , the pegmatites hosting mica , rare and precious metals and minerals were emplaced within ...
... continued with emphasis on geochemical surveys in the remaining part of the belt . In the Nellore mica belt , extending for 60 km south of Pennar , the pegmatites hosting mica , rare and precious metals and minerals were emplaced within ...
Page 76
... continued on 1 : 25,000 scale in Shimoga - Dharwar schist belt and an area of 325 sq km was mapped . The main ob- jective of the mapping was to search for gold min- eralisation confined to sulphide - carbonate facies of banded iron ...
... continued on 1 : 25,000 scale in Shimoga - Dharwar schist belt and an area of 325 sq km was mapped . The main ob- jective of the mapping was to search for gold min- eralisation confined to sulphide - carbonate facies of banded iron ...
Page 133
... 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 , Agraharam South , Agraharam ...
... 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 , Agraharam South , Agraharam ...
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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