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 60
... mineralisation is hosted by quartz - carbonate veins and veinlets , having pyrite , pyrrhotite and arsenopyrite ... mineralisation varying between 1.35 ppm Au over 1.50 m and 6.20 ppm Au over 2.50 m . ( Zone 1 ) and between 0.53 ppm Au ...
... mineralisation is hosted by quartz - carbonate veins and veinlets , having pyrite , pyrrhotite and arsenopyrite ... mineralisation varying between 1.35 ppm Au over 1.50 m and 6.20 ppm Au over 2.50 m . ( Zone 1 ) and between 0.53 ppm Au ...
Page 68
... mineralisation in the northwestern part of Shimoga- North Kanara Schist belt , covering parts of Dharwar and North Kanara district was mounted during FS 2003-04 . This item was continued during 2004-05 Field Season to delineate the BIF ...
... mineralisation in the northwestern part of Shimoga- North Kanara Schist belt , covering parts of Dharwar and North Kanara district was mounted during FS 2003-04 . This item was continued during 2004-05 Field Season to delineate the BIF ...
Page 101
... mineralisation occurs as strata bound deposit , in graphite bearing biotite gneiss , interbanded with quartzo - feldspathic gneiss , which have undergone shearing . The graphite mineralisation , generally flaky in nature , occurs as ...
... mineralisation occurs as strata bound deposit , in graphite bearing biotite gneiss , interbanded with quartzo - feldspathic gneiss , which have undergone shearing . The graphite mineralisation , generally flaky in nature , occurs as ...
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