Matoush (Otish Basin)
Quebec, Otish Basin (Matoush Lake), Canada
UraniumU
- Type
- Basin-related sandstone-hosted uranium
Uranium ore sample from the Queen's University collection analysed by Uvarova et al. (2014) for δ238U and δ234U. Basin-related prospect (Cook and Ross, 2007): uraninite and uranophane, δ238U of +0.11 to +0.43 ‰ and δ234U of -19 to +1 ‰. Coordinates not published.
δ238U in ‰ (per mil) Values of the same system
Standard : NBL CRM 112-A
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 0.31 ± 0.1 ‰ | 1 | uraninite Single analysis; ± 0.10 ‰ (2 SD, reproducibility); sample MT-06-010-313.6, Matoush Lake prospect; bracketing-only δ238U at +0.29; 238U/235U of 137.88; about -0.29 ‰ after removing the 0.60 ‰ offset specific to this study. | Uvarova et al. (2014), Variations in the uranium isotopic compositions of uranium ores fr… | |
| 0.43 ± 0.1 ‰ | 1 | uraninite Single analysis; ± 0.10 ‰ (2 SD, reproducibility); sample MT-06-010-313.1 a, Matoush Lake prospect; bracketing-only δ238U at +0.34; 238U/235U of 137.895; about -0.17 ‰ after removing the 0.60 ‰ offset specific to this study. | Uvarova et al. (2014), Variations in the uranium isotopic compositions of uranium ores fr… | |
| 0.29 ± 0.1 ‰ | 1 | uraninite Single analysis; ± 0.10 ‰ (2 SD, reproducibility); sample MT-06-010-313.1 b, Matoush Lake prospect; bracketing-only δ238U at +0.18; 238U/235U of 137.876; about -0.31 ‰ after removing the 0.60 ‰ offset specific to this study. | Uvarova et al. (2014), Variations in the uranium isotopic compositions of uranium ores fr… | |
| 0.16 ± 0.1 ‰ | 1 | uraninite Single analysis; ± 0.10 ‰ (2 SD, reproducibility); sample MT-06-010-314.1, Matoush Lake prospect; bracketing-only δ238U at +0.23; 238U/235U of 137.858; about -0.44 ‰ after removing the 0.60 ‰ offset specific to this study. | Uvarova et al. (2014), Variations in the uranium isotopic compositions of uranium ores fr… | |
| 0.11 ± 0.1 ‰ | 1 | uranophane Single analysis; ± 0.10 ‰ (2 SD, reproducibility); sample MT-06-010-314.0, Matoush Lake prospect; bracketing-only δ238U at +0.12; 238U/235U of 137.852; about -0.49 ‰ after removing the 0.60 ‰ offset specific to this study; secondary U(VI) mineral. | 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 MT-06-010-313.6, Matoush Lake prospect. | Uvarova et al. (2014), Variations in the uranium isotopic compositions of uranium ores fr… | |
| 1 ‰ | 1 | uraninite Single analysis; per-sample uncertainty not published; sample MT-06-010-313.1 a, Matoush Lake prospect. | Uvarova et al. (2014), Variations in the uranium isotopic compositions of uranium ores fr… | |
| −7 ‰ | 1 | uraninite Single analysis; per-sample uncertainty not published; sample MT-06-010-313.1 b, Matoush Lake prospect. | Uvarova et al. (2014), Variations in the uranium isotopic compositions of uranium ores fr… | |
| −4 ‰ | 1 | uraninite Single analysis; per-sample uncertainty not published; sample MT-06-010-314.1, Matoush Lake prospect. | Uvarova et al. (2014), Variations in the uranium isotopic compositions of uranium ores fr… | |
| −19 ‰ | 1 | uranophane Single analysis; per-sample uncertainty not published; sample MT-06-010-314.0, Matoush Lake prospect; secondary U(VI) mineral. | Uvarova et al. (2014), Variations in the uranium isotopic compositions of uranium ores fr… |
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Cite this page
IsoFind Atlas (2026). Matoush (Otish Basin), isotope signatures. https://www.isofind.tech/isotopes/en/deposits/matoush-bassin-d-otish/ (accessed 2026-10-16).
@misc{isofind2026matoushotishbasinisotopesigna,
title = {Matoush (Otish Basin), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/matoush-bassin-d-otish/},
note = {Accessed 2026-10-16}
}Updated : 2026-10-16