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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. |
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