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 96
... biotite gneiss , and garnetiferous quartzo - feldspathic gneiss . The migmatite group is mainly restricted in the Dharapuram domain around Palani and E and NE of Palani and is constituted by the migmatite gneiss and biotite granite ...
... biotite gneiss , and garnetiferous quartzo - feldspathic gneiss . The migmatite group is mainly restricted in the Dharapuram domain around Palani and E and NE of Palani and is constituted by the migmatite gneiss and biotite granite ...
Page 115
... biotite gneiss with bands and lenses of Sathyamangalam supracrustals which is represented mainly by quartzite ... gneiss . In Sankari - Tiruchengodu sector , the older metamorphites ( Sathyamangalam supracrustals ) are represented by ...
... biotite gneiss with bands and lenses of Sathyamangalam supracrustals which is represented mainly by quartzite ... gneiss . In Sankari - Tiruchengodu sector , the older metamorphites ( Sathyamangalam supracrustals ) are represented by ...
Page 120
Geological Survey of India. Quartz vein Dolerite Pyroxenite Charnockite and charnockite gneiss . Granite gneiss Hornblende gneiss and hornblende - biotite gneiss + garnet Quartz - mica schist Quartz - sericite schist + kyanite . Kyanite ...
Geological Survey of India. Quartz vein Dolerite Pyroxenite Charnockite and charnockite gneiss . Granite gneiss Hornblende gneiss and hornblende - biotite gneiss + garnet Quartz - mica schist Quartz - sericite schist + kyanite . Kyanite ...
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