Records of the Geological Survey of India, Volume 126, Issues 5-6Vols. 1- include Report of the Geological Survey, 1867- ; v. 32- include Review of the mineral production of India, 1898/1903- ; v. 75 consists of Professional papers, no. 1-16; v. 76 consists of Bulletins of economic minerals. |
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Page 75
... Amphibolite metabasalt acid volcanics Base not seen The amphibolite occurs as discontinuous bands within the schist belt and as enclaves within the adjacent granites . At a few places , pillow structures and vesicles filled with ...
... Amphibolite metabasalt acid volcanics Base not seen The amphibolite occurs as discontinuous bands within the schist belt and as enclaves within the adjacent granites . At a few places , pillow structures and vesicles filled with ...
Page 177
... amphibolite and metaultramafite . Channel samples from an amphibolite enclave with sub - parallel quartz veins / veinlets yielded gold values ranging from 1.25 ppm to 6.06 ppm ( Plate - 3 ) . Minute specks of visible gold along with ...
... amphibolite and metaultramafite . Channel samples from an amphibolite enclave with sub - parallel quartz veins / veinlets yielded gold values ranging from 1.25 ppm to 6.06 ppm ( Plate - 3 ) . Minute specks of visible gold along with ...
Page 257
... amphibolite with lenticular bands of granular amphibolite . Quartzo - feldspathic gneiss and felsite consti- tute the acidic suite of rocks . Gold mineralisa- tion is localised along shear zones in the schistose amphibolite and quartzo ...
... amphibolite with lenticular bands of granular amphibolite . Quartzo - feldspathic gneiss and felsite consti- tute the acidic suite of rocks . Gold mineralisa- tion is localised along shear zones in the schistose amphibolite and quartzo ...
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Common terms and phrases
acid amphibolite ANDHRA PRADESH anomaly zones axis bands basalt basin biotite biotite gneiss block boreholes charnockite complex Deccan Trap deformation depth DISTRICT dolerite drilling enclaves ENE-WSW exposed feldspar field season flows folds foliation Formation gabbro geochemical GEOLOGICAL MAP Geology Division Geophysical GEOTECHNICAL INVESTIGATIONS gneiss gneissic gold grained granite granite gneiss granitoids granulite grey Group hornblende INDEX indicated intrusives joints KARNATAKA kimberlite laterite lava lineament located mafic magnetite MAHARASHTRA metabasalt migmatite mineral mineralised zone Nagpur Narmada NE-SW NNW-SSE NW-SE occur pahoehoe pegmatite pink granite plagioclase porphyritic pyrite pyroxene granulite pyroxenite quartz quartz veins quartzite Quaternary regional reservoir rhyolite river rock types Sakoli samples sandstone scale schist schist belt schistose sediments shale shear zone soil spillway sq km strike length structures studies sulphide surveys syenite TAMIL NADU thick toposheet traversed trench trending tunnel ultramafic upto valley volcanics width