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TitleNew geochronological insights into the Taltson Domain of northern Alberta and Saskatchewan
DownloadDownload (whole publication)
AuthorPowell, J W; Pana, D I; Card, C D; Potter, E G; Tschirhart, V; Joyce, N
SourceTargeted Geoscience Initiative: 2017 report of activities, volume 2; by Rogers, N (ed.); Geological Survey of Canada, Open File 8373, 2018 p. 43-56, (Open Access)
PublisherNatural Resources Canada
Documentopen file
Mediaon-line; digital
RelatedThis publication is contained in Rogers, N; (2018). Targeted Geoscience Initiative: 2017 report of activities, volume 2, Geological Survey of Canada, Open File 8373
File formatpdf
ProvinceAlberta; Saskatchewan
NTS73C/13; 73C/14; 73C/15; 73C/16; 73D/14; 73D/15; 73D/16; 73E/01; 73E/02; 73E/03; 73E/06; 73E/07; 73E/08; 73E/09; 73E/10; 73E/11; 73E/14; 73E/15; 73E/16; 73F; 73K/01; 73K/02; 73K/03; 73K/04; 73L/01; 73L/02; 73L/03
AreaPatterson Lake; Clearwater River; Marguerite River
Lat/Long WENS-111.2500 -108.0000 58.2500 56.8333
Subjectseconomic geology; geochronology; tectonics; mineral deposits; mineral exploration; mineral potential; uranium; ore mineral genesis; mineralization; ore controls; strain; tectonic history; thermal history; crystallization; metamorphism; recrystallization; emplacement; radiometric dating; uranium lead dating; zircon dates; argon argon dating; biotite; basement geology; lithology; metamorphic rocks; orthogneisses; granite gneisses; mylonites; granulite facies; igneous rocks; intrusive rocks; pegmatites; granites; structural features; shear zones; correlations; Archean; Taltson Domain; Athabasca Basin; Rae Province; Clearwater Domain; Taltson Magmatic Zone; ore systems approach; fluid conduits; Sensitive High-Resolution Ion Microprobe (SHRIMP) analyses; Precambrian; Proterozoic
Illustrationsgeoscientific sketch maps; photographs; photomicrographs; Concordia diagrams; bar graphs; tables
ProgramTargeted Geoscience Initiative (TGI-5), Knowledge Management Coordination
ProgramTargeted Geoscience Initiative (TGI-5), Uranium systems
Released2018 03 01
AbstractRecent discoveries of basement-hosted uranium deposits, such as those of the Patterson Lake corridor along the southwestern margin of the Athabasca Basin, have underscored the potential of high-strain corridors within the south-west Rae Province as major fluid conduits. Although these buried basement domains have often been defined using airborne geophysical data, the paucity of regional geochronological information makes it difficult to relate the geo-physical signatures to the regional tectonothermal history. This report presents new zircon U-Pb Sensitive High-Resolution Ion Microprobe and biotite 40Ar/39Ar geochronological data for six samples that span the Taltson Domain of the southwest Rae Province. Three orthogneiss and one pegmatite sample from the Marguerite River area of north-ern Alberta crystallized at ca. 1.97 Ga and intruded 2.1 to 2.7 Ga crust, and biotite from a mylonitic shear zone yielded a ca. 1.82 Ga 40Ar/39Ar cooling age. Zircon cores from a sample of granitic gneiss sampled along the Clearwater River in northern Saskatchewan returned an imprecise crystallization age of 2422 ± 28 Ma (MSWD = 1.4), whereas recrystallized rims record granulite-facies metamorphism at 1923.0 ± 7.3 Ma.