Records of the Geological Survey of India, Volume 139, Part 5The Survey, 2006 - 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 85
... upto 15 % , is exposed in a well cutting NE of Sendurai . Medium grained pink granite / quartz syenite is recorded east of Karuppur , SSE of Sendurai and NW of Sirugudi . It consists of varying pink k - feldspar and quartz as the main ...
... upto 15 % , is exposed in a well cutting NE of Sendurai . Medium grained pink granite / quartz syenite is recorded east of Karuppur , SSE of Sendurai and NW of Sirugudi . It consists of varying pink k - feldspar and quartz as the main ...
Page 171
... upto a depth where it is groutable . Two sets of vertical to near vertical joints are prominent along the cut - off trench . In the order of prominence , the joints trend N20 ° E - S20 ° W to N10 ° W- S10 ° E . Imperceptible gneissosity ...
... upto a depth where it is groutable . Two sets of vertical to near vertical joints are prominent along the cut - off trench . In the order of prominence , the joints trend N20 ° E - S20 ° W to N10 ° W- S10 ° E . Imperceptible gneissosity ...
Page 229
... upto Ch32m . Foliation , three sets of joints are the discontinuitites present in the rockmass . The most prominent and weathered / stained foliation joints are dipping against the Penstock slope . Bands / patches of highly weathered ...
... upto Ch32m . Foliation , three sets of joints are the discontinuitites present in the rockmass . The most prominent and weathered / stained foliation joints are dipping against the Penstock slope . Bands / patches of highly weathered ...
Contents
ANDHRA PRADESH | 1 |
Quaternary Geology | 9 |
Project National Geochemica Mapping NGCM | 16 |
Copyright | |
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abutment alignment amphibolite Andhra Pradesh assess bands basin bed rock biotite biotite gneiss block boreholes carried charnockite coast cut-off trench depth district dolerite drilled dunes dyke earth dam enclaves excavation exposed field season folds foliation Formation foundation fresh rock garnet Geochemical Mapping geological mapping GEOTECHNICAL INVESTIGATION gneiss gold grained granite granite gneiss granitoids granodiorite granulite gravity grouting holes hornblende indicated intrusive Item joints Karnataka Kerala Khondalite kimberlite laterite limestone lithounits located lugeons mafic metabasalt migmatite mineralisation minerals moderate mylonite NNW-SSE NW-SE occur overburden pegmatite penstock permeability tests phyllite powerhouse project authorities proposed pyroxene quartz quartz veins quartzite reservoir river samples were collected sand schist belt shale shear zone shotcrete slope soil Specialised Thematic Mapping spillway STAGE GEOTECHNICAL stream sediment samples strike structure studies sulphide surface Tamil Nadu thick toposheet traverse trending tsunami ultramafic upto values varying vertical weathered weir width