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Calculated Δ53Cr and Δ54Cr (for evaporation of only Cr+ by kinetic isotope fractionation) using different Cr oxides (CrO, CrO2 and CrO3) and different fractionation laws (kinetic and equilibrium). The data sources are from Tables 7a and 7b. It should be noted that the variation factor (slope) between Δ53Cr and Δ54Cr is 2.61 that is highly consistent with the slope (2.6) between ε53Cr and ε54Cr values of multiple measurements for NIST 3112a (Qin et al., 2010).
