El Dorado
Canada (mine not specified), Canada
UraniumU
- Type
- Vein uranium
Deposit of the high-temperature redox category in the study of uranium ore concentrates (yellowcake) from 40 mines. Uranium reduced at high temperature (igneous or metamorphic processes): clustered 238U/235U, indistinguishable from the non-redox conglomerates (common mean 137.833 ± 0.034, 2SD), and 235U/234U close to secular equilibrium (Brennecka et al., 2010). Ambiguous name: Eldorado mined both Port Radium and Beaverlodge, two vein deposits; not linked to Echo Bay (Port Radium) for lack of detail. 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 |
|---|---|---|---|---|
| 137.809 ± 0.018 | 1 | uranium ore concentrate (yellowcake) Single analysis; high-temperature redox category; ambiguous name: Eldorado mined both Port Radium and Beaverlodge, two vein deposits; not linked to Echo Bay (Port Radium) for lack of detail. | 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 |
|---|---|---|---|---|
| 134.51 ± 0.42 | 1 | uranium ore concentrate (yellowcake) Single analysis; high-temperature 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). El Dorado, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/el-dorado/ (accessed 2026-10-15).
@misc{isofind2026eldoradoisotopesignatures,
title = {El Dorado, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/el-dorado/},
note = {Accessed 2026-10-15}
}Updated : 2026-10-15