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 45
... occur as linear bodies in massive granite . These rocks are coarse grained and porphyritic with large feldspar crystals in medium to coarse groundmass . At places magmatic and mylonitic foliations are seen . The ground mass - phenocryst ...
... occur as linear bodies in massive granite . These rocks are coarse grained and porphyritic with large feldspar crystals in medium to coarse groundmass . At places magmatic and mylonitic foliations are seen . The ground mass - phenocryst ...
Page 96
... occur . The Charnockite displays various stages of retrogression due to intense shearing and partial melting resulting in development of migmatites . The metasediments are found to occur in the eastern part of the mapped area and are ...
... occur . The Charnockite displays various stages of retrogression due to intense shearing and partial melting resulting in development of migmatites . The metasediments are found to occur in the eastern part of the mapped area and are ...
Page 275
... occur in the sequence forming good marker horizons . These rocks are intruded by a Granite batholith known as Tekkalakote granite . Younger intrusive such as dolerite and pegmatite , quartz veins occurs , trending NW - SE . The gneiss ...
... occur in the sequence forming good marker horizons . These rocks are intruded by a Granite batholith known as Tekkalakote granite . Younger intrusive such as dolerite and pegmatite , quartz veins occurs , trending NW - SE . The gneiss ...
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