Oxygen Isotope Plots

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Meteoritical Bulletin: Oxygen Isotope Plots

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Change values (separate multiple values with semicolons) - δ¹⁸O: δ¹⁷O: Δ¹⁷O:
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Oxygen isotope composition of differentiated achondrites. Data for angrites and HEDs from Greenwood et al. (2005). Data for Martian meteorites from Franchi et al. (1999). EFL: eucrite fractionation line (Greenwood et al., 2005), AFL: angrite fractionation line (Greenwood et al., 2005), MFL: Martian fractionation line (Franchi et al., 1999), TFL: terrestrial fractionation line. M: average value of Martian meteorite analyses from Franchi et al. (1999). E: bulk terrestrial mantle (Mattey et al., 1994). Open squares: HEDs, open triangles: angrites, open circles: Martian meteorites. Δ¹⁷O is linearized using the format of Miller (2002): Δ¹⁷O = 1000 ln (1+ (δ¹⁷O/1000)) – λ1000 ln (1+ ( δ¹⁸O/1000)) where λ = 0.5247.

References:

Franchi I. A., Wright I. P., Sexton A. S. and Pillinger C. T. (1999) The oxygen-isotopic composition of Earth and Mars. Meteorit. Planet. Sci. 34, 657-661. (link)
Franchi I. A., Wright I. P., Sexton A. S. and Pillinger C. T. (1999) The oxygen-isotopic composition of Earth and Mars. Meteorit. Planet. Sci. 34, 657-661. (link)
Greenwood R.C., Franchi I.A., Jambon A. and Buchanan P.C. (2005) Widespread magma oceans on asteroidal bodies in the early solar system. Nature 435, 916-918 (link)
Greenwood R.C., Franchi I.A., Jambon A. and Buchanan P.C. (2005) Widespread magma oceans on asteroidal bodies in the early solar system. Nature 435, 916-918 (link)
Mattey D., Lowry D. and Macpherson C. (1994) Oxygen isotope composition of mantle peridotite. Earth Planet. Sci. Lett. 128, 231-241 (link)
Miller M.F. (2002) Isotopic fractionation and the quantification of 17O anomalies in the three oxygen isotope system: an appraisal and geochemical significance. Geochim. Cosmochim. Acta 66, 1881-1889 (link)

Data summary:

δ¹⁸O	δ¹⁷O	Δ¹⁷O: given	Δ¹⁷O: Miller (2002)	Comment
3.2700	0.1500	-1.5700	-1.565

Nearest neighbors in MBDB (within 0.5 permil):

Name	Class	δ¹⁸O	δ¹⁷O	Δ¹⁷O: calc	Δ δ¹⁸O	Δ δ¹⁷O	Δ Δ¹⁷O
Northwest Africa 2400	Achondrite-ung	3.2700	0.1500	-1.565	0	0	0
Northwest Africa 2994	Chondrite-ung	3.3550	0.0780	-1.681	0.09	-0.07	-0.12
Northwest Africa 8545	Achondrite-ung	3.1590	0.1200	-1.536	-0.11	-0.03	0.03
Northwest Africa 2994	Chondrite-ung	3.3310	-0.0070	-1.754	0.06	-0.16	-0.19
Northwest Africa 3250	Achondrite-prim	3.2500	-0.0300	-1.734	-0.02	-0.18	-0.17
Northwest Africa 6921	CR6	3.1810	-0.0650	-1.733	-0.09	-0.22	-0.17
Northwest Africa 12869	Achondrite-prim	3.1810	-0.0720	-1.74	-0.09	-0.22	-0.18
Northwest Africa 7317	CR6	3.5070	0.0570	-1.782	0.24	-0.09	-0.22
Northwest Africa 468	Iron, IAB-ung	3.0100	0.1800	-1.398	-0.26	0.03	0.17
Northwest Africa 8158	Eucrite	3.0220	0.0000	-1.585	-0.25	-0.15	-0.02
Hassi el Biod 002	Pallasite, ungrouped	3.3900	0.4400	-1.338	0.12	0.29	0.23
Northwest Africa 12869	Achondrite-prim	3.5840	0.1700	-1.709	0.31	0.02	-0.14
Northwest Africa 4448	Lodranite	3.4130	0.4420	-1.348	0.14	0.29	0.22
Tafassasset	Achondrite-prim	2.9400	0.1800	-1.362	-0.33	0.03	0.2
Northwest Africa 7317	CR6	3.5940	0.0640	-1.82	0.32	-0.09	-0.26
Northwest Africa 8545	Achondrite-ung	2.9660	0.0040	-1.551	-0.3	-0.15	0.01
Northwest Africa 8287	Acapulcoite	3.2000	0.5000	-1.178	-0.07	0.35	0.39
Dhofar 125	Acapulcoite	3.5700	0.3600	-1.512	0.3	0.21	0.05
Northwest Africa 5782	Acapulcoite/lodranite	3.2400	0.5300	-1.169	-0.03	0.38	0.4
Northwest Africa 8287	Acapulcoite	2.9440	0.3560	-1.188	-0.33	0.21	0.38
Northwest Africa 12455	CR7	3.6370	0.2960	-1.611	0.37	0.15	-0.05
Northwest Africa 12869	Achondrite-prim	3.6680	0.2250	-1.698	0.4	0.08	-0.13
Northwest Africa 4025	CB	3.7300	0.2200	-1.735	0.46	0.07	-0.17
Northwest Africa 4448	Lodranite	3.5510	0.5390	-1.323	0.28	0.39	0.24
Hassi el Biod 002	Pallasite, ungrouped	2.8200	0.3380	-1.141	-0.45	0.19	0.42

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