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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Results 1-3 of 69
Page 116
... pegmatite veins trending N10E - S10W . The major constituents of the peg- matites are quartz , plagioclase feldspar , mica , tour- maline and garnet : acquamarine and spodumene are occasionally present . The average width of pegmatite ...
... pegmatite veins trending N10E - S10W . The major constituents of the peg- matites are quartz , plagioclase feldspar , mica , tour- maline and garnet : acquamarine and spodumene are occasionally present . The average width of pegmatite ...
Page 171
... pegmatite veins T - 1 T - 2 T - 3 Amphibolite and pegmatite T - 6 Amphibolite and quartz vein From the preliminary trenching work carried out in the area , a 75 m long auriferous zone was demarcated . The width of the zone varies from ...
... pegmatite veins T - 1 T - 2 T - 3 Amphibolite and pegmatite T - 6 Amphibolite and quartz vein From the preliminary trenching work carried out in the area , a 75 m long auriferous zone was demarcated . The width of the zone varies from ...
Page 226
... pegmatite and quartz veins . The foliation trend varies from N60E - S60W to N30W - S30E with 45 ° southwesterly to near vertical dips . The rocks in the foundations are generally fresh except a few surficially weathered / stained ...
... pegmatite and quartz veins . The foliation trend varies from N60E - S60W to N30W - S30E with 45 ° southwesterly to near vertical dips . The rocks in the foundations are generally fresh except a few surficially weathered / stained ...
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