Records of the Geological Survey of India, Volume 124, Part 5The Survey, 1991 - Earthquakes Vols. 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 22
... dykes . The out- crops of medium to coarse - grained pink alkali feldspar granite are wide spread . A few scattered ... dykes of dolerite , gabbro and pyroxenite composition traverse the granitoid - migmatite complex in NW - SE , NNW ...
... dykes . The out- crops of medium to coarse - grained pink alkali feldspar granite are wide spread . A few scattered ... dykes of dolerite , gabbro and pyroxenite composition traverse the granitoid - migmatite complex in NW - SE , NNW ...
Page 68
... dykes Pegmatite and quartz veins Orbicular granite The Closepet Granite in the area is bounded by gneiss on either ... dykes . The dolerite dykes are generally discontinuous , less wide and are less in number compared to gabbro dykes ...
... dykes Pegmatite and quartz veins Orbicular granite The Closepet Granite in the area is bounded by gneiss on either ... dykes . The dolerite dykes are generally discontinuous , less wide and are less in number compared to gabbro dykes ...
Page 261
... dykes trending N - S and E - W cut across the schist belt ( Plate 1 ) The tentative lithostratigraphy of these belts is given in table - 1 . GADWAL Quartz reef Basic dykes Younger granite - tonalite , trondhjemite , granodiorite granite ...
... dykes trending N - S and E - W cut across the schist belt ( Plate 1 ) The tentative lithostratigraphy of these belts is given in table - 1 . GADWAL Quartz reef Basic dykes Younger granite - tonalite , trondhjemite , granodiorite granite ...
Contents
Andhra Pradesh | 11 |
Karnataka and Goa | 61 |
Tamil Nadu Kerala | 109 |
Copyright | |
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alkali feldspar granite amphibolite ANDHRA PRADESH ANDHRA PRADESH Code anomaly zones banded iron formation basin biotite block boreholes carried channel charnockite Chitradurga chlorite clay coarse-grained comprising depth Dharwar dips DISTRICT dolerite drilling emplaced enclaves exposed feldspar field season fluvial foliation Formation gabbro geochemical GEOLOGICAL MAP GEOPHYSICAL gneiss gold values granite granite gneiss granitoids gravel grey granite hornblende INDEX indicated intersected intrusives INVESTIGATION FOR GOLD joints KARNATAKA KARNATAKA Code KERALA kimberlite Krishna landforms lateritic lignite limestone located lode magnetic magnetite metabasalt migmatites mineralised zone NW-SE occur palaeochannel Palar pediplain pegmatite Peninsular Gneissic Complex phyllite pink granite Plate-2 pyroxenite quartz quartz veins quartzite Quaternary reservoir river rock types samples sand scale schist belt schistose shale shear slopes soil sq km strike length studies sulphide mineralisation surface surveys syenite TAMIL NADU terrace thick tonalite traverse trench trending ultramafic upto vertical volcanics width