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 13
... gneiss Kimberlite Dolerite / gabbro dykes Quartz reefs / veins Medium to coarse - grained pink syenite Medium - grained hornblende and biotite - bearing grey and pink granodiorite , adamellite - granite Orbicular granite Migmatite after ...
... gneiss Kimberlite Dolerite / gabbro dykes Quartz reefs / veins Medium to coarse - grained pink syenite Medium - grained hornblende and biotite - bearing grey and pink granodiorite , adamellite - granite Orbicular granite Migmatite after ...
Page 85
... gneiss , quartzo - feld- spathic granite gneiss , metadolerite and talcose rock . A number of small quartz and pegmatite veins are seen in the area . Metapyroxenite is a coarse- grained dark green to black coloured rock occur- ring as ...
... gneiss , quartzo - feld- spathic granite gneiss , metadolerite and talcose rock . A number of small quartz and pegmatite veins are seen in the area . Metapyroxenite is a coarse- grained dark green to black coloured rock occur- ring as ...
Page 104
... gneiss Hypersthene gneiss Calc gneiss / marble Mafic granulite Quartzite garnet ± diopside sillimanite .Basement not known . Two different types of charnockite observed are : ( i ) well - foliated dark grey greasy intermediate type ...
... gneiss Hypersthene gneiss Calc gneiss / marble Mafic granulite Quartzite garnet ± diopside sillimanite .Basement not known . Two different types of charnockite observed are : ( i ) well - foliated dark grey greasy intermediate type ...
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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