Fig. 2: Ferric iron ratio in bridgmanite as a function of pressure showing how our model reproduces experimental results and literature data. | Nature Geoscience

Fig. 2: Ferric iron ratio in bridgmanite as a function of pressure showing how our model reproduces experimental results and literature data.

From: Bridgmanite’s ferric iron content determined Earth’s oxidation state

Fig. 2

Data denoted as from this work are experimental values ± 1σ. Other data are the values and error bars reported in the cited references and are usually also experimental values ± 1σ. a,b, The red and blue lines are from our model for bridgmanite that coexists with ferropericlase (a) and stishovite (b). The temperatures are 2,300 K and 2,000 K for the pyrolite and mid-ocean ridge basalt (MORB) system, respectively, both with an oxygen fugacity of IW, with the shaded region extending from ΔIW −1.0 to +1.0.

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