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 92
... exposed in the area belong to the Khondalite and Charnockite Group of rocks . The Khondalite Group of rocks exposed includes quartzite , garnet biotite sillimanite + cordierite gneiss graphite and calc granulite . Quartzite occurs as ...
... exposed in the area belong to the Khondalite and Charnockite Group of rocks . The Khondalite Group of rocks exposed includes quartzite , garnet biotite sillimanite + cordierite gneiss graphite and calc granulite . Quartzite occurs as ...
Page 98
... exposed in the western part whereas in the eastern part , equivalents of Ninniyur Formation are exposed . The Patti Formation of Vriddhachalam segment , equivalent of Upper Sillakudi Formation was explored during FS 2004-05 . The Patti ...
... exposed in the western part whereas in the eastern part , equivalents of Ninniyur Formation are exposed . The Patti Formation of Vriddhachalam segment , equivalent of Upper Sillakudi Formation was explored during FS 2004-05 . The Patti ...
Page 165
... exposed . Shale layers are weathered to disintegrated , soft and extend continuously as exposed in the foundation , dipping parallel to quartzite bands i.e.5 ° to 10 ° towards right flank . The quartzite layers immediately underlying ...
... exposed . Shale layers are weathered to disintegrated , soft and extend continuously as exposed in the foundation , dipping parallel to quartzite bands i.e.5 ° to 10 ° towards right flank . The quartzite layers immediately underlying ...
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