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TitleRelationships between pluton emplacement, mineralization and deformation at the Gander/Avalon boundary, Newfoundland from a geochronological and thermochronological perspective
AuthorKellett, D A; Rogers, N; McNicoll, V J; van Staal, C R
SourceGeological Survey of Canada, Open File 7468, 2014, 1 sheet,
PublisherNatural Resources Canada
Documentopen file
Mediaon-line; digital
File formatpdf
ProvinceNewfoundland and Labrador
NTS1M/12; 1M/13; 1M/14; 2C/13; 2D/03; 2D/04; 2D/05; 2D/06; 2D/07; 2D/09; 2D/10; 2D/11; 2D/12; 2D/13; 2D/14; 2D/15; 2D/16; 2E; 2F/04; 2F/05; 2F/06; 2L/04; 2L/12; 2L/13; 2L/14; 2M/04; 2M/05; 2M/12; 11O/09; 11O/10; 11O/11; 11O/14; 11O/15; 11O/16; 11P/09; 11P/10; 11P/11; 11P/12; 11P/13; 11P/14; 11P/15; 11P/16; 12A; 12B/01; 12B/02; 12B/03; 12B/06; 12B/07; 12B/08; 12B/09; 12B/10; 12B/11; 12B/14; 12B/15; 12B/16; 12G/01; 12G/08; 12H; 12I; 12P/01; 12P/02; 12P/03; 12P/07; 12P/08; 12P/09
AreaNewfoundland Appalachians
Lat/Long WENS-60.0000 -53.5000 49.7500 47.5000
Subjectsgeochronology; igneous and metamorphic petrology; structural geology; tectonics; igneous rocks; plutonic rocks; mineralization; deformation; magmatism; bedrock geology; basement geology; stratigraphic correlations; geochronometry; radiometric dating; uranium lead dating; structural features; faults; Gander-Avalon boundary; Gander Zone; Avalon Zone; Dover Fault; Paleozoic; Devonian
Illustrationslocation maps; photographs; plots
ProgramIntrusion/Porphyry Ore Systems, Targeted Geoscience Initiative (TGI-4)
Released2014 03 02
Summary(Plain Language Summary, not published)
The Targeted Geoscience Initiative (TGI-4) is a collaborative federal geoscience program that provides industry with the next generation of geoscience knowledge and innovative techniques to better detect buried mineral deposits, thereby reducing some of the risks of exploration. The boundary between two distinct geological Zones in the Appalachians, Gander and Avalon, is straddled by a suite of Devonian granites that are locally enriched in economically important elements (molybdenum, tungsten, tin, fluorine). There is a major fault, the Dover fault, at this boundary that may have influenced where and when the granites were emplaced in the crust, as well as when and where those important elements are enriched. To test these relationships we have initiated a geochronology study to determine the ages of the granites, and the times at which the fault was active. We have employed the U-Pb and K-Ar decay systems to date the geological processes. This poster presents our initial results.