Radiometric ages: |
Object dated: Mineralogy(1); Age - Ma: 1,514; +18; -18; Dating method: U-Pb; Concentrate: uraninite, single grain; Source rock: uranium ore; Formal name: initial uraninite deposition; Event dated: mineralization (early); Interpretive comment: oldest age from the sub-Athabasca deposits; 8 collinear points; lower intercept at 667 ± 50 Ma; Reference: Cumming, G. L.; Krstic, D., 1992: The Age of Unconformity-Related Uranium Mineralization in the Athabasca Basin, Northern Saskatchewan; Canadian Journal of Earth Sciences, Volume 29, p. 1623 - 1639
Object dated: Mineralogy(1); Age - Ma: 1,327; +8; -8; Dating method: U-Pb; Concentrate: uraninite, single grain; Source rock: uranium ore; Formal name: second stage of uraninite deposition; Event dated: mineralization; Interpretive comment: younger of two adjacent high reflectance grains (Rank 1) with relatively more exsolved galena grains; Reference: Cumming, G. L.; Krstic, D., 1992: The Age of Unconformity-Related Uranium Mineralization in the Athabasca Basin, Northern Saskatchewan; Canadian Journal of Earth Sciences, Volume 29, p. 1623 - 1639
Object dated: Mineralogy(1); Age - Ma: 1,540; +38; -38; Dating method: Laser Ablation HR-ICP-MS; Concentrate: uraninite; Source rock: uranium ore (high grade); Event dated: mineralization (early); Interpretive comment: 3 data points; oldest age from upper intercept with concordia; average 207Pb/206Pb age: 1570 ± 19 Ma; Reference: Alexandre, P.; Kyser, K.; Polito, P., 2003: Geochronology of the Paleoproterozoic Basement-hosted Unconformity-type Uranium Deposits in Northern Saskatchewan, Canada; In Proceedings of an International Conference on Uranium Geochemistry 2003, Nancy - France, April 13 - 16, 2003: Extended Abstracts (Recueil des Conferences Colloque International Géochimie de l'Uranium 2003), Edited by Cuney, M., Proceedings of International Conference (Extended Abstracts), Unité Mixte de Recherche - Géologie et Gestion des Ressources Minérales et Enérgetiques, 7566 Nancy, France, 409 p., p. 37 - 40
Object dated: Mineralogy(1); Age - Ma: 1,247; +88; -88; Dating method: Laser Ablation HR-ICP-MS; Concentrate: uraninite; Source rock: uranium ore (high grade); Event dated: mineralization (hypogene); Interpretive comment: 17 data points; close to linear plot; age of recrystalliztion; average 207Pb/206Pb age: 1247 ± 88 Ma; Reference: Alexandre, P.; Kyser, K.; Polito, P., 2003: Geochronology of the Paleoproterozoic Basement-hosted Unconformity-type Uranium Deposits in Northern Saskatchewan, Canada; In Proceedings of an International Conference on Uranium Geochemistry 2003, Nancy - France, April 13 - 16, 2003: Extended Abstracts (Recueil des Conferences Colloque International Géochimie de l'Uranium 2003), Edited by Cuney, M., Proceedings of International Conference (Extended Abstracts), Unité Mixte de Recherche - Géologie et Gestion des Ressources Minérales et Enérgetiques, 7566 Nancy, France, 409 p., p. 37 - 40
Object dated: Mineralogy(1); Age - Ma: 950; +27; -27; Dating method: Laser Ablation HR-ICP-MS; Concentrate: uraninite; Source rock: uranium ore (high grade); Event dated: mineralization, remobilized; Interpretive comment: 11 data points; nearly linear plot; isotopic system resetting; average 207Pb/206Pb age: 952 ± 48 Ma; Reference: Alexandre, P.; Kyser, K.; Polito, P., 2003: Geochronology of the Paleoproterozoic Basement-hosted Unconformity-type Uranium Deposits in Northern Saskatchewan, Canada; In Proceedings of an International Conference on Uranium Geochemistry 2003, Nancy - France, April 13 - 16, 2003: Extended Abstracts (Recueil des Conferences Colloque International Géochimie de l'Uranium 2003), Edited by Cuney, M., Proceedings of International Conference (Extended Abstracts), Unité Mixte de Recherche - Géologie et Gestion des Ressources Minérales et Enérgetiques, 7566 Nancy, France, 409 p., p. 37 - 40 |
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Alexandre, P.; Kyser, K., 2003 |
Mineralogy, Fluid Geochemistry, and Evolution of Paleoproterozoic Basement-hosted Unconformity-type Uranium Deposits in Northern Saskatchewan, Canada |
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Geochronology of the Paleoproterozoic Basement-hosted Unconformity-type Uranium Deposits in Northern Saskatchewan, Canada |
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