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 74
... intrusive varieties are exposed on the north - western part and extrusive type noticed are on the central and south ... intrusive ultramafic suite . The intrusive ultramafics with chromite occur in a stretch of 10-15 km towards the ...
... intrusive varieties are exposed on the north - western part and extrusive type noticed are on the central and south ... intrusive ultramafic suite . The intrusive ultramafics with chromite occur in a stretch of 10-15 km towards the ...
Page 266
... intrusive contacts with the older amphibolites . The amphibolites found between Kundam - Sirasanambedu area are both massive and schistose varieties . Schistose variety is fine to medium grained and consists of amphibole pleochroic in ...
... intrusive contacts with the older amphibolites . The amphibolites found between Kundam - Sirasanambedu area are both massive and schistose varieties . Schistose variety is fine to medium grained and consists of amphibole pleochroic in ...
Page 275
... intrusive rocks from multi band data . The features like litho units , lineaments , faults and shears were identified by the sharp changes , in tone , DN values , texture and geomorphic expressions , resulting in identification of five ...
... intrusive rocks from multi band data . The features like litho units , lineaments , faults and shears were identified by the sharp changes , in tone , DN values , texture and geomorphic expressions , resulting in identification of five ...
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