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 140
... seen within charnockite gneiss . Concentration of pyroxene granulite stringers and lenses are seen , at places , within charnockite gneiss as also within other rock types around Randam , SW of Valudalangulam and around Avalur- pettai ...
... seen within charnockite gneiss . Concentration of pyroxene granulite stringers and lenses are seen , at places , within charnockite gneiss as also within other rock types around Randam , SW of Valudalangulam and around Avalur- pettai ...
Page 29
... seen in the western part of the mapped area ( near Jattatola ) are of amphibolites , hornblende schist and thin bands of mica schists . These appear to be the basement rocks into which the granitic suite of rocks were emplaced and may ...
... seen in the western part of the mapped area ( near Jattatola ) are of amphibolites , hornblende schist and thin bands of mica schists . These appear to be the basement rocks into which the granitic suite of rocks were emplaced and may ...
Page 70
... seen , and as such most of the observations are based onthe well section studies . Flow No. 4 shows megacrystic ... seen 4 km north of Shevgaon , over a length of about 4-5 km and ( 2 ) west of Shevgaon ( lat . 19 ° 21′16 ′′ - 75 ° 12′27 ...
... seen , and as such most of the observations are based onthe well section studies . Flow No. 4 shows megacrystic ... seen 4 km north of Shevgaon , over a length of about 4-5 km and ( 2 ) west of Shevgaon ( lat . 19 ° 21′16 ′′ - 75 ° 12′27 ...
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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