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 164
... values obtained for the grab samples collected from this band gave 70 ppm Cu and 540 ppm Ni . Rich disseminations of pyrite and a few specks of aresenopyrite are seen in a silicified metachert associated with ultramafic rocks at 2.5 km ...
... values obtained for the grab samples collected from this band gave 70 ppm Cu and 540 ppm Ni . Rich disseminations of pyrite and a few specks of aresenopyrite are seen in a silicified metachert associated with ultramafic rocks at 2.5 km ...
Page 166
... values vary from 100 ppm to 0.24 % . The highest Cu value is obtained from one sample collected from sheared and silicified pyroxene granulite . Groove samples from siicified quartzite , 1 km SSW of Rajapalayam and 1 km SE of Attippadi ...
... values vary from 100 ppm to 0.24 % . The highest Cu value is obtained from one sample collected from sheared and silicified pyroxene granulite . Groove samples from siicified quartzite , 1 km SSW of Rajapalayam and 1 km SE of Attippadi ...
Page 249
... value ( Mean + S.D. ) Threshold value 76 47 99 888 ( Mean + 2 S.D. ) No.of values 52 25 23 10 19 above threshold 63 The threshold values as indicated above have been plotted and contours were drawn to delineate the anomalies for ...
... value ( Mean + S.D. ) Threshold value 76 47 99 888 ( Mean + 2 S.D. ) No.of values 52 25 23 10 19 above threshold 63 The threshold values as indicated above have been plotted and contours were drawn to delineate the anomalies for ...
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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