Table 1 Calculated results of diffusional fractionation of Fe isotopes in immiscible Si-melts.

Run	T (°C)	SiO₂	C₀	C_c	β_FeO	C∞ _(1/2+1/2)	δ⁵⁷Fe_(1/2+1/2)	C∞ _(2/3+1/3)	δ⁵⁷Fe_(2/3+1/3)
SI-13	1020	60.4	21.40	10.30	0.015	15.85	0.43	17.70	0.32
SI-7	1006	69.1	23.10	5.79	0.015	14.45	0.64	17.33	0.42
SI-5	1006	64.4	24.60	9.06	0.015	16.83	0.52	19.42	0.37
SI-8	963	70.9	28.10	5.43	0.015	16.77	0.70	20.54	0.45
SI-9	938	72.6	30.60	3.79	0.015	17.20	0.78	21.66	0.48
M-9	1020	63.8	21.80	10.80	0.015	16.30	0.42	18.13	0.31
M-4	1006	73.1	25.80	5.21	0.015	15.51	0.69	18.94	0.44
M-5	1005	69.7	25.20	7.62	0.015	16.41	0.58	19.34	0.40
M-6	963	74.4	32.00	5.09	0.015	18.55	0.74	23.03	0.47
M-7	938	74.8	32.40	3.79	0.015	18.10	0.79	22.86	0.49
I-3	1005	62.4	21.80	12.50	0.015	17.15	0.37	18.70	0.28
I-5	964	76.2	27.60	4.27	0.015	15.94	0.74	19.82	0.47
S-6	1023	65	19.40	8.45	0.015	13.93	0.47	15.75	0.34
S-3	1005	63.6	18.20	9.14	0.015	13.67	0.42	15.18	0.31
S-5	1006	66.8	18.90	7.77	0.015	13.34	0.49	15.19	0.35

Note: the first three columns in Table 1 to Table 6 are the same, which are experimental data from Charlier and Grove³⁹. SiO₂ is the SiO₂ concentration of immiscible Si-melt. C₀: FeO concentration of interfacial melt (Fe-melt). C_c: FeO concentration of Si-melt. β_FeO: FeO diffusional fractionation factor is from Richter et al. (2009). C_{∞ (1/2+1/2)}: FeO concentration of the bulk melt = 1/2× C₀ + 1/2× C_c. δ⁵⁷Fe _(1/2+1/2): calculated δ⁵⁷Fe with the bulk melt = C∞ _(1/2+1/2) and initial δ⁵⁷Fe = δ⁵⁷Fe_MORBs is assumed. C_{∞ (2/3+1/3)}: FeO concentration of the bulk melt = 2/3× C₀ +1/3× C_c. δ⁵⁷Fe _(2/3+1/3): calculated δ⁵⁷Fe with the bulk melt = C∞ _(2/3+1/3)) and initial δ⁵⁷Fe = δ⁵⁷Fe_MORBs is assumed.

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