Equilibrium Fractionation of Oxygen Isotopes in the U<sub>3</sub>O<sub>8</sub>-Atmospheric Oxygen System.

ACS Omega · 2022 · PMC9774323 · PMID 36570191

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The minimum of δ 18 O values which were obtained at 400 °C is associated with the pseudo-hexagonal structure, and the second step, in the temperature range of 500–800 °C, is a clear trend toward heavier δ 18 O which can be related to the hexagonal structure.

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