Urtuy granite massif
Eastern Transbaikalia, Russia
UraniumU
- Type
- Granite-hosted uraninite (intrusive mineralisation)
Uraninite made of two phases of very different ages, Ura (783 ± 26 Ma) and Urb (262 ± 26 Ma), in variable proportions; uniform 238U/235U ratio whatever the proportions (Chernyshev et al., 2014). Coordinates not given.
238U/235U isotope ratio, no unit Values of the same system
Standard : NBL CRM 112-A
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 137.75833 ± 0.00666 | 137.754 / 137.766 | 3 | two-phase uraninite (Ura and Urb) in variable proportions (25) Mean and standard deviation recalculated from 3 analyses, equivalent δ238U -0.60 to -0.52 ‰. | Chernyshev et al. (2014), 238U/235U isotope ratio variations in minerals from hydrotherma… |
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). Urtuy granite massif, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/massif-granitique-d-urtuy/ (accessed 2026-10-15).
@misc{isofind2026urtuygranitemassifisotopesign,
title = {Urtuy granite massif, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/massif-granitique-d-urtuy/},
note = {Accessed 2026-10-15}
}Updated : 2026-10-15