Blind River
Ontario, Elliot Lake district, Canada
UraniumU
- Type
- Quartz-pebble conglomerate uranium
Deposit of the non-redox category in the study of uranium ore concentrates (yellowcake) from 40 mines. Quartz-pebble conglomerate with detrital uraninite, deposited before atmospheric oxygenation, hence without uranium reduction: 238U/235U indistinguishable from high-temperature deposits (common mean 137.833 ± 0.034, 2SD) (Brennecka et al., 2010). Placed in the high-temperature block of Table 1 despite its conglomerate type, the text limiting the non-redox deposits to Stanleigh, Stanrock and Denison; classed here with the conglomerates. Coordinates not given.
238U/235U isotope ratio, no unit Values of the same system
Standard : CRM 129-A (rapport absolu, double traceur 236U-233U)
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 137.835 ± 0.018 | 1 | uranium ore concentrate (yellowcake) Single analysis; non-redox category; placed in the high-temperature block of Table 1 despite its conglomerate type, the text limiting the non-redox deposits to Stanleigh, Stanrock and Denison; classed here with the conglomerates. | Brennecka et al. (2010), Natural variations in uranium isotope ratios of uranium ore conc… |
235U/234U isotope ratio, no unit Values of the same system
Standard : CRM 129-A (rapport absolu, double traceur 236U-233U)
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 136.88 ± 0.42 | 1 | uranium ore concentrate (yellowcake) Single analysis; non-redox category. | Brennecka et al. (2010), Natural variations in uranium isotope ratios of uranium ore conc… |
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). Blind River, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/blind-river/ (accessed 2026-10-15).
@misc{isofind2026blindriverisotopesignatures,
title = {Blind River, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/blind-river/},
note = {Accessed 2026-10-15}
}Updated : 2026-10-15