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
... grained and lighter are medium grained . There are concordant quartzo - feldspathic gneisses occurring within the charnockite , which are important rock units . These rocks are mainly found to occur in and around Palani and Ayakkudi ...
... grained and lighter are medium grained . There are concordant quartzo - feldspathic gneisses occurring within the charnockite , which are important rock units . These rocks are mainly found to occur in and around Palani and Ayakkudi ...
Page 267
... grained quartz . Coarse to very coarse grained sublithic quartz arenite : The basal conglomerate is overlain by a NW -SE to NNW - SSE striking and northeasterly dipping ( 10 ° ) coarse to very coarse grained quartz arenite , which is ...
... grained quartz . Coarse to very coarse grained sublithic quartz arenite : The basal conglomerate is overlain by a NW -SE to NNW - SSE striking and northeasterly dipping ( 10 ° ) coarse to very coarse grained quartz arenite , which is ...
Page 268
... grained quartzite are noticed in the matrix supported conglomerate . Coarse grained sublithic quartz arenite : Pulivendla conglomerate is overlain by 20 m thick reddish coarse grained sublithic quartz arenite . The framework is made of ...
... grained quartzite are noticed in the matrix supported conglomerate . Coarse grained sublithic quartz arenite : Pulivendla conglomerate is overlain by 20 m thick reddish coarse grained sublithic quartz arenite . The framework is made of ...
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