| Title | New geochronological insights into the Taltson Domain of northern Alberta and Saskatchewan |
| Download | Download (whole publication) |
| Author | Powell, J W; Pana, D I; Card, C D; Potter, E G; Tschirhart, V; Joyce, N |
| Source | Targeted Geoscience Initiative: 2017 report of activities, volume 2; by Rogers, N (ed.); Geological Survey of Canada, Open File 8373, 2018 p. 43-56, https://doi.org/10.4095/306600 (Open Access) |
| Year | 2018 |
| Publisher | Natural Resources Canada |
| Document | open file |
| Lang. | English |
| Media | on-line; digital |
| Related | This publication is contained in Rogers, N; (2018). Targeted
Geoscience Initiative: 2017 report of activities, volume 2, Geological Survey of Canada, Open File 8373 |
| File format | pdf |
| Province | Alberta; Saskatchewan |
| NTS | 73C/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 |
| Area | Patterson Lake; Clearwater River; Marguerite River |
| Lat/Long WENS | -111.2500 -108.0000 58.2500 56.8333 |
| Subjects | economic 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 |
| Illustrations | geoscientific sketch maps; photographs; photomicrographs; Concordia diagrams; bar graphs; tables |
| Program | Targeted
Geoscience Initiative (TGI-5), Knowledge Management Coordination |
| Program | Targeted
Geoscience Initiative (TGI-5), Uranium systems |
| Released | 2018 03 01 |
| Abstract | Recent 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. |
| GEOSCAN ID | 306600 |
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