Centennial (Athabasca)
Saskatchewan, southern Athabasca Basin, Canada
UraniumU
- Type
- Proterozoic unconformity uranium
Uranium ore sample from the Queen's University collection analysed by Uvarova et al. (2014) for δ238U and δ234U. Two uraninite generations (Alexandre et al., 2012): older massive uraninite at +0.51 ‰ and younger colloform uraninite at +1.52 ‰, the highest value of the ores of the study. Coordinates not published.
δ238U in ‰ (per mil) Values of the same system
Standard : NBL CRM 112-A
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 0.51 ± 0.1 ‰ | 1 | uraninite Single analysis; ± 0.10 ‰ (2 SD, reproducibility); sample VR29-W2-806 U1, Centennial (massive uraninite); bracketing-only δ238U at +0.35; 238U/235U of 137.907; about -0.09 ‰ after removing the 0.60 ‰ offset specific to this study; older generation. | Uvarova et al. (2014), Variations in the uranium isotopic compositions of uranium ores fr… | |
| 1.52 ± 0.1 ‰ | 1 | uraninite Single analysis; ± 0.10 ‰ (2 SD, reproducibility); sample VR29-W2-806 U2, Centennial (colloform uraninite); bracketing-only δ238U at +1.23; 238U/235U of 138.046; about +0.92 ‰ after removing the 0.60 ‰ offset specific to this study; younger generation, highest ore value of the study. | Uvarova et al. (2014), Variations in the uranium isotopic compositions of uranium ores fr… |
δ234U in ‰ (per mil) Values of the same system
Standard : équilibre séculaire
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −1 ‰ | 1 | uraninite Single analysis; per-sample uncertainty not published; sample VR29-W2-806 U1, Centennial (massive uraninite); older generation. | Uvarova et al. (2014), Variations in the uranium isotopic compositions of uranium ores fr… | |
| 14 ‰ | 1 | uraninite Single analysis; per-sample uncertainty not published; sample VR29-W2-806 U2, Centennial (colloform uraninite); younger generation, highest ore value of the study. | Uvarova et al. (2014), Variations in the uranium isotopic compositions of uranium ores fr… |
Deposits of the same type
- Athabasca basin (unconformity uranium province) Canada
- Shea Creek (Athabasca) Canada
- Tim Mersoï basin (Arlit, Akouta, Imouraren) Niger
- Inkai (Chu-Sarysu basin) Kazakhstan
- Tulukuevskoye Russia
- Ty Gallen France
- Rophin France
- Key Lake (Deilmann and Gaertner) Canada
Cite this page
IsoFind Atlas (2026). Centennial (Athabasca), isotope signatures. https://www.isofind.tech/isotopes/en/deposits/centennial-athabasca/ (accessed 2026-10-16).
@misc{isofind2026centennialathabascaisotopesig,
title = {Centennial (Athabasca), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/centennial-athabasca/},
note = {Accessed 2026-10-16}
}Updated : 2026-10-16