Skyline Mine (Monument Valley)
Utah, San Juan County, Monument Valley district (Oljeto Mesa), United States
UraniumU-V
- Type
- Tabular sandstone-hosted uranium (Colorado Plateau)
Channel deposit in the Mesozoic fluvial sandstones of the Colorado Plateau, on Navajo land; REE-poor uraninite. Uraninite 87Sr/86Sr measured by Balboni et al. (2016) for nuclear forensics: low ratios (below 0.7200) in low-temperature sandstone deposits, high in pegmatites, veins and breccia pipes. Coordinates from Mindat.
87Sr/86Sr isotope ratio, no unit Values of the same system
Standard : NIST SRM 987
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 0.71792 ± 0.000011 | 1 | sandstone uraninite Single analysis; value read from the Figure 7 label, 2σ uncertainty. | Balboni et al. (2016), Chemical and Sr isotopic characterization of North America uranium… |
Deposits of the same type
- Happy Jack Mine (White Canyon) United States
- Cameron district (uraniferous petrified wood) United States
- Orphan Lode (Grand Canyon) United States
- Marshall Pass district United States
- Billiken Lode (Critchell area) United States
- Key Lake (Deilmann and Gaertner) Canada
- Shea Creek (Athabasca) Canada
- McArthur River (Athabasca) Canada
Cite this page
IsoFind Atlas (2026). Skyline Mine (Monument Valley), isotope signatures. https://www.isofind.tech/isotopes/en/deposits/skyline-mine-monument-valley/ (accessed 2026-10-15).
@misc{isofind2026skylineminemonumentvalleyisot,
title = {Skyline Mine (Monument Valley), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/skyline-mine-monument-valley/},
note = {Accessed 2026-10-15}
}Updated : 2026-10-15