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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Results 1-3 of 64
Page 91
... trench values of the mineralised zone vary from 0.7 g / t to 15 g / t . The bore- holes MG - 12 to MG - 15 , drilled for lodes - 4 and 6 , intersected lean mineralisation . On assay , the boreholes did not indicate any signifcant gold ...
... trench values of the mineralised zone vary from 0.7 g / t to 15 g / t . The bore- holes MG - 12 to MG - 15 , drilled for lodes - 4 and 6 , intersected lean mineralisation . On assay , the boreholes did not indicate any signifcant gold ...
Page 194
... trench in between RD 1,466.5 and 1,516 m of the right earth dam exposed 10 to 30 cm thick overburden consisting of cobbles and pebbles of quartzite underlain by moderately weathered to fresh quartzite , traversed by closely spaced sub ...
... trench in between RD 1,466.5 and 1,516 m of the right earth dam exposed 10 to 30 cm thick overburden consisting of cobbles and pebbles of quartzite underlain by moderately weathered to fresh quartzite , traversed by closely spaced sub ...
Page 204
... trench was excavated between Ch 365 and 430 m upto RL 180.20 m and drilling of 150 mm dia grout holes , in dolomite in two rows ( first row at 0.3 m and the second row at 0.6 m on the up- stream side of the axis ) was nearing comple ...
... trench was excavated between Ch 365 and 430 m upto RL 180.20 m and drilling of 150 mm dia grout holes , in dolomite in two rows ( first row at 0.3 m and the second row at 0.6 m on the up- stream side of the axis ) was nearing comple ...
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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