Figure 9
Predicted equilibrium fractionation factors (in ‰) of the redox pairs Sn4+/Sn2+ (SnO2, SnO) (Giefers et al., 2006; Hu et al., 1999), Fe3+/Fe2+ (Fe2O3, FeO) (Dauphas et al., 2014) and Eu3+/Eu2+ (Eu2O3, EuO); see text for details. The blue dashed line is the previous estimate for the Sn4+/Sn2+ redox pair by Polyakov et al. (2005). The solid blue line is the new updated value. |