Author Correction: Hadean mantle oxidation inferred from melting of peridotite under lower-mantle conditions

Correction to: Nature Geoscience https://doi.org/10.1038/s41561-023-01169-4, published online 4 May 2023.

In the version of this article initially published, the amount of possibly formed Fe₂O₃ via additional redox disproportionation of Fe²⁺ during quenching in bridgmanite-enriched samples (run nos. OT2775 and OT2846) was incorrectly underestimated (i.e., 0.3–0.7 wt%), and we did not correct the Fe³⁺/ΣFe ratios of these two samples because of small amounts of Fe₂O₃ in comparison with the measured values of the samples (i.e., 4.26–5.02 wt%). The Fe₂O₃ amounts possibly formed upon quenching were re-estimated from the mass fraction of tiny metal droplets (i.e., 0.2 wt% for OT2775 and 0.5 wt% for OT2846) to be 0.6 wt% for OT2775 and 1.4 wt% for OT2846 assuming the reaction of 3FeO → Fe and Fe₂O₃. Accordingly, the revised Fe³⁺/ΣFe ratios of OT2775 and OT2846 are 0.378 and 0.351, respectively. Using these revised data, the required pressure derivative of bulk compressibility κ’ of FeO_1.5 slightly changes from the original value of 1.4 to 1.5 to fit the experimental data. The change of κ′ of FeO_1.5 slightly affects oxygen-fugacity profiles at high pressures above 20 GPa in Fig. 3. Fig. 2 and its caption and Fig. 3 have been updated. These corrections do not change the conclusion of the study and the authors apologize for any confusion for readers. It is noted that bright areas of back-scattered electron images identified as metal droplets may contain other minor phases, such as Ca-rich phase (i.e., former CaSiO₃ perovskite). If this is the case, the area fraction of metal droplets and amounts of Fe₂O₃ possibly formed upon quenching are overestimated. Thus, the revised Fe³⁺/ΣFe ratios of OT2775 and OT2846 are likely lower bounds. Table 1 now contains both corrected data and measured original data of OT2775 and OT2846 for transparency.