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 ii
... indicated gold mineralisation as two parallel lodes associated with both schistose amphi- bolite and quartzo - feldspathic gneiss . Au values upto 4.5 g / t over widths ranging upto 1.04 m were established over a strike length of 150 m ...
... indicated gold mineralisation as two parallel lodes associated with both schistose amphi- bolite and quartzo - feldspathic gneiss . Au values upto 4.5 g / t over widths ranging upto 1.04 m were established over a strike length of 150 m ...
Page 265
... indicates a NE - SW regional trend on which are superposed the N - S trending magnetic highs and lows . A gravity high closure of the order of 0.4 mgals , corresponding to the magnetic high zone , is indicated over the hard kimberlite ...
... indicates a NE - SW regional trend on which are superposed the N - S trending magnetic highs and lows . A gravity high closure of the order of 0.4 mgals , corresponding to the magnetic high zone , is indicated over the hard kimberlite ...
Page 270
... indicated shift of the mineralised zone towards east . Magnetic surveys ( VF ) indicated possible pyrrhotite - rich zones within banded ferrugi- nous chert . - Geophysical surveys were conducted in Maski sub - block II and Ramaldinni ...
... indicated shift of the mineralised zone towards east . Magnetic surveys ( VF ) indicated possible pyrrhotite - rich zones within banded ferrugi- nous chert . - Geophysical surveys were conducted in Maski sub - block II and Ramaldinni ...
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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