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Mi Vida Mine (Lisbon Valley)

Utah, San Juan County, Big Indian district (Lisbon Valley), United States

UraniumU

Type
Tabular sandstone-hosted uranium

Ore from the Smithsonian Institution collection (Cowan and Adler, 1976 suite) analysed by Bopp et al. (2009); δ238U relative to IRMM REIMP-18A. Tabular sandstone deposit with δ238U of +0.41 ‰; one totally dissolved sample confirms the leaching. Coordinates not published.

δ238U in ‰ (per mil) Values of the same system

Standard : IRMM REIMP-18A

ValueRangenMineral or matrixSource
0.41 ± 0.08 ‰8uranium ore (tabular sandstone)
Published mean of 8 analyses; ± 0.08 ‰ (1σ); "Mi Vida Mine" in Table 1; 0.35 % U in the analysed chip; about +0.16 to +0.27 ‰ on the CRM 112-A scale.
Bopp et al. (2009), Variations in 238U/235U in uranium ore deposits: Isotopic signatures …

Deposits of the same type

Cite this page

IsoFind Atlas (2026). Mi Vida Mine (Lisbon Valley), isotope signatures. https://www.isofind.tech/isotopes/en/deposits/mine-mi-vida-lisbon-valley/ (accessed 2026-10-16).

@misc{isofind2026mividaminelisbonvalleyisotope,
  title = {Mi Vida Mine (Lisbon Valley), isotope signatures},
  author = {{IsoFind Atlas}},
  year = {2026},
  url = {https://www.isofind.tech/isotopes/en/deposits/mine-mi-vida-lisbon-valley/},
  note = {Accessed 2026-10-16}
}

Updated : 2026-10-16