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 21
... recorded . At places , small vesicles are recorded . Pyroxenite is usually coarse- grained with mottled appearance . It also occurs as thin bands within the banded ferruginous quartzite parallel to lamination . Migmatite gneisses form ...
... recorded . At places , small vesicles are recorded . Pyroxenite is usually coarse- grained with mottled appearance . It also occurs as thin bands within the banded ferruginous quartzite parallel to lamination . Migmatite gneisses form ...
Page 82
... recorded earlier in acid valcanics . The present surveys have recorded sulphide dis- seminations in a quartz vein ( 3 m x 1 m ) travers- ing acid volcanics . The area is mostly soil covered . A total of 95 samples were collected and the ...
... recorded earlier in acid valcanics . The present surveys have recorded sulphide dis- seminations in a quartz vein ( 3 m x 1 m ) travers- ing acid volcanics . The area is mostly soil covered . A total of 95 samples were collected and the ...
Page 163
... recorded in the core samples upto 600 m depth . Megafossils include a few belemnites between 85 and 385 m , partly preserved nautiloid shell cast at 203 m , pelecypod shells most of which are fragmentary , one gastropod and two fish ...
... recorded in the core samples upto 600 m depth . Megafossils include a few belemnites between 85 and 385 m , partly preserved nautiloid shell cast at 203 m , pelecypod shells most of which are fragmentary , one gastropod and two fish ...
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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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