Records of the Geological Survey of India, Volume 123, Part 5The Survey, 1988 - 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 13
... grey granite , pink granite , pink alkali feldspar granite . In migmatite , it occurs as neosome and metabasite as paleosome . The coarse - grained grey biotite granite is the dominant lithounit and occurs as low lying hill ranges ...
... grey granite , pink granite , pink alkali feldspar granite . In migmatite , it occurs as neosome and metabasite as paleosome . The coarse - grained grey biotite granite is the dominant lithounit and occurs as low lying hill ranges ...
Page 38
... grey to dark grey or whitish grey and chiefly composed of greyish blue quartz , potash feldspar and biotite . At places , this granite is garnetiferous . Porphyroblasts of grey alkali feldspar are common . However , well developed ...
... grey to dark grey or whitish grey and chiefly composed of greyish blue quartz , potash feldspar and biotite . At places , this granite is garnetiferous . Porphyroblasts of grey alkali feldspar are common . However , well developed ...
Page 102
... grey , pink and white . They are further subdivided based on grain size variation and texture as coarse , medium and porphyritic varieties . Grey granite is the dominant variety and occu- pies the major part of the flat and lwo lying ...
... grey , pink and white . They are further subdivided based on grain size variation and texture as coarse , medium and porphyritic varieties . Grey granite is the dominant variety and occu- pies the major part of the flat and lwo lying ...
Contents
Geotechnical studies of the cutoff trench between RD 418 and 918 M PVB Reservoir | 185 |
A geotechnical note of the Pedaballi dam foundations Anantapur district Andhra Pradesh | 191 |
A geotechnical note on the Yeleru Project under construction in East Godavari | 197 |
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Common terms and phrases
alignment alkali feldspar amphibolite ANANTAPUR DISTRICT ANDHRA PRADESH ANDHRA PRADESH CODE Archaean bands basin biotite block boreholes charnockite charnockite gneiss clay coarse-grained conglomerate Cuddapah depth Dharwar dips DISTRICT dolerite dolerite dykes drilled earth dam emplacement enclaves exposed fault feldspar field season flank folds foliation Formation fractured fresh rock g/t gold gabbro garnetiferous GEOLOGICAL MAP geophysical GEOTECHNICAL gneiss Gondwana granite granite gneiss granitoids granodiorite granulite grey granite grouting hornblende indicated intrusive joints KARNATAKA KERALA kimberlite laterite limestone lithounits located lode magnetite metabasalt metabasite migmatite mineralised zone minerals NE-SW NW-SE occur overburden pediplain pegmatite Peninsular Gneissic Complex phyllites pink granite plagioclase power house pyrite pyroxenite quartz quartz veins quartzite river rock types samples sandstone scale schist schist belt sediments shear zone soil spillway sq km strike length studies sulphide surface surveys syenite TAMIL NADU thickness tonalite Toposheet traversed trench trending tunnel ultramafic upto weathered width