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 4
... migmatite com- plex is grey banded gneiss or migmatite . It is coarse to very coarse - grained and contains megacrysts of alkali feldspar ( upto 10 cm in length ) . It ex- hibits various migmatitic structures like stromatic schlieren ...
... migmatite com- plex is grey banded gneiss or migmatite . It is coarse to very coarse - grained and contains megacrysts of alkali feldspar ( upto 10 cm in length ) . It ex- hibits various migmatitic structures like stromatic schlieren ...
Page 18
... migmatites M - 1a , M - 1b . The M - 1a migmatite consists of metabasite as the palaeosome and coarse - grained grey granite as the neosome whereas the M - 1b migmatite consists of metaba- site or their granodioritised product as the ...
... migmatites M - 1a , M - 1b . The M - 1a migmatite consists of metabasite as the palaeosome and coarse - grained grey granite as the neosome whereas the M - 1b migmatite consists of metaba- site or their granodioritised product as the ...
Page 41
... Migmatite - I . The migmatites which , at places , are garnetiferous , show agmatitic , banded , ptygmatic , streaky , schlieren and schollen structures . The coarse - grained , inequigranular , mafic - poor pink granite represents ...
... Migmatite - I . The migmatites which , at places , are garnetiferous , show agmatitic , banded , ptygmatic , streaky , schlieren and schollen structures . The coarse - grained , inequigranular , mafic - poor pink granite represents ...
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