Fe2+–Mg partitioning between olivine and liquid at low oxygen fugacity: an experimental and thermodynamic framework

Saper, L. M.; Baker, M. B.; Stolper, E. M.

doi:10.1007/s00410-022-01955-0

Table 3 Experimental glass and olivine rim compositions in wt%

From: Fe²⁺–Mg partitioning between olivine and liquid at low oxygen fugacity: an experimental and thermodynamic framework

Name	Phase	n	SiO₂	TiO₂	Al₂O₃	Cr₂O₃	FeO*	MnO	MgO	CaO	Na₂O	K₂O	NiO	Totals
RKD-1	gl	46	47.2(4)	1.93(1)	11.2(1)	0.5(2)	11.64(23)	0.86(3)	15.29(28)	9.3(1)	0.72(4)	0.04(1)		98.92
	ol	20	39.4(4)	0.01(2)	0.10(2)	0.44(2)	11.33(9)	0.67(1)	47.62(22)	0.30(2)				99.88
RKD-2	gl	48	47.8(4)	1.9(2)	11.5(2)	0.52(2)	10.48(23)	0.84(2)	15.18(21)	9.5(1)	1.13(4)	0.07(1)		99.05
	ol	25	39.2(6)	0.01(1)	0.10(2)	0.45(2)	10.55(18)	0.68(1)	48.79(52)	0.30(1)				100.11
RKD-3	gl	20	48.0(1)	1.95(3)	12.2(1)	0.50(2)	10.14(8)	0.82(2)	14.63(8)	9.54(3)	1.04(5)	0.07(1)	0.02(2)	98.99
	ol	15	40.1(3)	0.05(3)	0.09(1)	0.44(4)	10.20(8)	0.67(1)	46.96(18)	0.30(1)			0.17(2)	99.00
RKD-4	gl	20	47.9(2)	1.96(3)	12.4(1)	0.55(4)	10.11(6)	0.85(3)	14.71(9)	9.54(3)	0.69(4)	0.064(4)	0.01(1)	98.82
	ol	10	40.3(1)	0.05(1)	0.08(1)	0.44(2)	10.07(4)	0.66(1)	47.14(11)	0.28(1)			0.14(1)	99.19
RKD-5	gl	20	48.2(1)	1.95(2)	12.09(4)	0.56(2)	11.13(7)	0.87(2)	14.97(10)	9.48(2)	0.48(4)	0.04(1)	0.06(2)	99.78
	ol	15	40.0(3)	0.05(1)	0.08(1)	0.44(2)	10.97(9)	0.68(1)	46.79(17)	0.27(1)			0.33(2)	99.59
RKD-6	gl	18	48.6(1)	2.14(3)	13.3(1)	0.40(2)	10.93(5)	0.85(2)	12.53(8)	10.39(4)	0.35(3)	0.03(1)	0.08(2)	99.58
	ol	12	39.6(1)	0.04(1)	0.07(1)	0.34(1)	12.42(4)	0.74(1)	45.18(15)	0.28(1)			0.53(2)	99.24
RKD-7	gl	19	47.1(1)	1.78(3)	11.2(1)	0.74(2)	11.37(8)	0.86(3)	17.51(15)	8.65(4)	0.29(4)	0.04(1)	0.04(2)	99.55
	ol	12	40.0(2)	0.04(1)	0.09(1)	0.50(2)	9.74(3)	0.60(1)	47.48(17)	0.27(1)			0.22(1)	98.91
RKD-8	gl	20	47.9(1)	0.60(2)	17.8(1)	0.03(1)	8.26(5)	0.49(2)	11.84(8)	11.29(3)	1.6(1)	0.08(1)	0.03(1)	99.90
	ol	7	40.0(2)	0.01(1)	0.08(1)	0.03(1)	9.95(7)	0.47(1)	47.54(12)	0.36(1)			0.28(1)	98.71
RKD-9	gl	20	48.3(1)	0.60(2)	18.0(1)	0.03(1)	7.78(6)	0.48(2)	12.36(7)	11.28(3)	1.00(4)	0.07(1)	0.02(1)	99.90
	ol	11	40.3(2)	0.01(1)	0.07(2)	0.02(1)	9.21(5)	0.45(1)	48.30(14)	0.32(1)			0.16(2)	98.85
RKD-12	gl	15	48.4(1)	0.60(2)	17.72(5)	0.03(1)	8.11(6)	0.49(2)	12.41(4)	11.33(2)	1.34(5)	0.08(1)	0.02(2)	100.58
	ol	15	40.5(1)	0.01(1)	0.07(2)	0.03(1)	9.58(12)	0.46(1)	48.25(18)	0.34(1)			0.20(2)	99.38
RKD-13	gl	20	51.2(1)	0.79(1)	15.5(1)		6.76(4)	0.48(2)	13.42(5)	11.64(4)	0.34(3)	0.02(1)		100.12
	ol	14	40.8(2)	0.02(1)	0.05(2)		7.94(4)	0.42(1)	49.66(15)	0.30(1)				99.25
RKD-14	gl	20	51.2(1)	0.80(2)	15.4(1)		6.75(4)	0.49(2)	13.51(7)	11.77(3)	0.27(3)	0.02(1)		100.24
	ol	10	41.2(1)	0.02(1)	0.04(1)		7.88(5)	0.42(1)	50.09(15)	0.30(1)				99.94
RKD-15	gl	20	52.2(1)	1.07(3)	15.6(1)		7.24(5)	0.51(2)	10.16(06)	12.89(4)	0.13(3)	0.008(4)		99.79
	ol	10	40.4(3)	0.02(1)	0.04(2)		10.65(10)	0.54(1)	47.38(21)	0.34(1)				99.38
RKD-16	gl	21	50.6(2)	1.06(2)	14.6(1)		12.98(7)	0.50(2)	9.59(05)	11.25(3)	0.11(2)	0.00		100.65
	ol	7	39.3(2)	0.02(1)	0.03(1)		18.28(15)	0.52(2)	41.56(12)	0.31(1)				100.05
RKD-17	gl	20	50.0(2)	1.08(2)	14.8(1)		13.04(8)	0.50(2)	9.53(06)	11.31(3)	0.09(2)	0.006(4)		100.43
	ol	14	39.0(2)	0.02(1)	0.04(1)		18.33(10)	0.51(1)	41.28(13)	0.32(2)				99.53
RKD-19	gl	19	51.6(3)	1.02(2)	16.2(2)	0.03(1)	8.87(10)	0.60(2)	8.84(16)	12.1(1)	1.42(4)	0.12(1)	0.01(1)	100.82
	ol	8	40.3(1)	0.03(1)	0.04(1)	0.04(1)	13.77(9)	0.70(1)	45.09(16)	0.39(1)			0.21(1)	100.59
RKD-20	gl	14	51.2(1)	0.99(2)	16.5(1)	0.04(1)	8.69(8)	0.60(2)	9.11(06)	12.14(4)	1.35(3)	0.11(1)	0.01(1)	100.69
	ol	12	40.3(2)	0.03(1)	0.05(1)	0.04(1)	13.33(14)	0.68(1)	45.44(13)	0.38(1)			0.19(1)	100.42
RKD-21	gl	19	48.7(2)	2.04(3)	13.0(1)		16.28(10)	0.58(2)	6.90(05)	12.14(5)	0.22(2)	0.01(1)		99.93
	ol	5	37.2(4)	0.03(2)	0.09(3)		26.44(13)	0.75(3)	34.12(34)	0.45(3)				99.14
RKD-22	gl	20	45.0(1)	1.10(2)	13.3(1)		23.44(12)	0.51(3)	5.92(04)	10.66(2)	0.08(2)	0.01(1)		100.02
	ol	15	35.1(1)	0.04(1)	0.05(1)		36.31(14)	0.66(1)	26.28(12)	0.47(3)				98.92
RKD-23	gl	19	45.3(1)	1.09(2)	12.88(4)		23.18(9)	0.51(2)	6.00(05)	10.60(3)	0.07(2)	0.004(4)		99.63
	ol	13	35.8(2)	0.03(1)	0.03(1)		35.51(35)	0.64(1)	27.43(30)	0.43(3)				99.86
RKD-24	gl	20	45.4(1)	1.11(2)	13.1(1)		23.34(11)	0.53(1)	6.03(04)	10.54(3)	0.08(2)	0.01(1)		100.07
	ol	12	35.5(2)	0.03(1)	0.04(1)		35.64(14)	0.64(1)	27.20(11)	0.41(2)				99.44
RKD-25	gl	19	48.7(1)	2.07(3)	12.5(1)	0.24(1)	11.09(7)	0.17(2)	15.15(8)	10.02(4)	0.34(3)	0.04(1)	0.05(2)	100.34
	ol	17	40.5(3)	0.04(1)	0.059(4)	0.17(1)	11.01(7)	0.14(1)	47.76(22)	0.26(1)			0.29(2)	100.24
RKD-26	gl	20	49.4(1)	2.10(3)	13.0(1)	0.43(2)	10.71(6)	0.84(3)	13.10(6)	10.32(2)	0.25(2)	0.03(1)	0.05(2)	100.29
	ol	13	40.5(1)	0.04(1)	0.059(4)	0.35(1)	11.91(4)	0.72(1)	46.16(12)	0.26(1)			0.42(1)	100.38
RKD-28	gl	20	51.5(1)	0.80(2)	15.75(6)		6.67(4)	0.50(2)	13.36(4)	11.79(2)	0.21(2)	0.02(1)		100.63
	ol	15	41.0(3)	0.02(1)	0.04(1)		7.96(6)	0.42(1)	50.08(17)	0.29(1)				99.73
RKD-29	gl	20	51.8(1)	0.78(2)	15.52(7)		6.70(5)	0.49(2)	13.76(5)	11.74(4)	0.28(2)	0.02(1)		101.07
	ol	19	41.3(2)	0.02(1)	0.04(1)		7.72(5)	0.41(1)	50.58(14)	0.30(1)				100.37
RKD-30	gl	20	51.5(1)	0.75(2)	15.19(7)		6.75(5)	0.50(2)	14.34(6)	11.54(4)	0.23(2)	0.02(1)		100.79
	ol	18	41.1(2)	0.02(1)	0.04(1)		7.57(4)	0.40(1)	50.67(12)	0.30(2)				100.09
RKD-31	gl	21	45.1()	1.03(2)	13.47(6)		22.88(8)	0.52(2)	6.36(5)	10.61(3)	0.05(2)	0.006(4)		100.02
	ol	17	36.1(2)	0.05(1)	0.04(1)		34.43(43)	0.62(2)	28.49(41)	0.41(4)				100.13
RKD-32	gl	21	45.1(1)	1.02(2)	13.47(6)		22.54(12)	0.51(2)	6.37(4)	10.56(2)	0.04(2)	0.004(4)		99.63
	ol	6	36.0(2)	0.04(1)	0.04(2)		33.89(29)	0.60(1)	28.67(20)	0.42(1)				99.62
RKD-33	gl	20	45.5(1)	1.03(2)	13.50(6)		22.47(12)	0.51(2)	6.52(4)	10.56(2)	0.06(2)	0.005(4)		99.98
	ol	13	36.2(2)	0.04(1)	0.04(1)		34.42(12)	0.62(1)	28.42(12)	0.42(2)				100.13
RKD-34	gl	20	44.9(1)	1.07(3)	13.42(6)		22.78(9)	0.52(2)	6.25(5)	10.65(2)	0.05(2)	0.01(1)		99.74
	ol	17	36.1(3)	0.04(1)	0.04(2)		34.18(21)	0.62(1)	28.56(19)	0.42(3)				99.96
RKD-35	gl	20	45.0(1)	1.07(2)	13.55(6)		22.32(1)	0.50(2)	6.40(4)	10.57(2)	0.07(3)	0.005(4)		99.47
	ol	16	35.8(2)	0.03(1)	0.04(1)		34.42(22)	0.62(1)	28.21(18)	0.42(3)				99.58

Reported values correspond to the mean composition of each phase measured in each experiment; the numbers in parentheses correspond to one standard deviation in terms of the least unit cited, i.e., 11.64(23) = 11.64 ± 0.23(1σ), or 11.33(9) = 11.33 ± 0.09(1σ). gl – glass, ol – olivine. n = number of analyses that were used to calculate averages and standard deviations. All olivine compositions come from analyses of olivine rims. The following primary standards were used: Si – for olivine, forsterite; for glass, VG-2, Ti – TiO₂, Al – for olivine, Al₂O₃; for glass, VG-2, Cr – Cr₂O₃, Fe – fayalite, Mn – tephroite, Mg – forsterite, Ca – for olivine, anorthite; for glass, VG-2, Na – albite, K – microcline, Ni – NiO. The Mean Atomic Number (MAN) protocol was used to calculate backgrounds. On-peak counting times were as follows: Si – 70 s, Ti – 60 s, Al – 100 s, Cr – 70 s, Fe – 50 s, Mn – 40 s, Mg – 50 s, Ca – 100 s, Na – 20 s, K –20 s, Ni – 30 s. Note that the olivines and glasses in RKD-1 and RKD-2 were measured using a different analytical protocol than the remaining experiments (count times were shorter) and NiO was not analyzed in this session. The count times for these two experiments were as follows: Si – 30 s, Ti – 30 s, Al – 30 s, Cr – 30 s, Fe – 25 s, Mn – 30 s, Mg – 30 s, Ca – 30 s, Na – 20 s, K – 20 s, Ni – not analyzed

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