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 main-group pallasites and mesosiderites. Data for main-group pallasites and mesosiderites from Greenwood et al. (2006). Solid lines through data points show the mean Δ¹⁷O value for each group. Grey-shaded boxes depict the 2σ error on the mesosiderite and main-group pallasite population Δ¹⁷O and δ¹⁸O mean values. Open squares are individual mesosiderite analyses, open circles individual pallasite analyses. The dashed line labelled (1) is the eucrite fractionation line of Greenwood et al. (2005); the dashed line labelled (2) shows the range of HED values obtained by Weichert et al. (2004). Δ¹⁷O is linearized using the format of Miller (2002): Δ¹⁷O = 1000 ln (1+ (δ¹⁷O/1000)) – λ1000 ln (1+ ( δ¹⁸O/1000)) where λ = 0.5247. TFL = Terrestrial Fractionation Line.

References:

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)
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)
Weichert U., Halliday A.N., Palme H., and Rumble D. (2004) Oxygen isotope evidence for rapid mixing of the HED meteorite parent body. Earth Planet. Sci. Lett. 221, 373-382 (link)

Data summary:

δ¹⁸O	δ¹⁷O	Δ¹⁷O: given	Δ¹⁷O: Miller (2002)	Comment
3.2090	1.4780	-0.2160	-0.206
3.1320	1.4250	-0.2290	-0.218

Nearest neighbors in MBDB (within 0.5 permil):

Name	Class	δ¹⁸O	δ¹⁷O	Δ¹⁷O: calc	Δ δ¹⁸O	Δ δ¹⁷O	Δ Δ¹⁷O
Northwest Africa 10023	Pallasite, PMG-an	3.1670	1.4400	-0.222	-0	-0.01	-0.01
Northwest Africa 1817	Mesosiderite-B	3.1900	1.4600	-0.214	0.02	0.01	-0
Northwest Africa 10023	Pallasite, PMG-an	3.1430	1.4580	-0.191	-0.03	0.01	0.02
Northwest Africa 1880	Diogenite	3.1600	1.4200	-0.238	-0.01	-0.03	-0.03
Northwest Africa 4215	Diogenite	3.2030	1.4310	-0.25	0.03	-0.02	-0.04
Northwest Africa 5312	Mesosiderite	3.1490	1.4840	-0.168	-0.02	0.03	0.04
Northwest Africa 1461	Diogenite	3.1770	1.4100	-0.257	0.01	-0.04	-0.04
Jiddat al Harasis 203	Mesosiderite-C2	3.1430	1.4030	-0.246	-0.03	-0.05	-0.03
Northwest Africa 4223	Diogenite	3.2200	1.4800	-0.21	0.05	0.03	0
Northwest Africa 8404	Diogenite-olivine	3.2330	1.4520	-0.244	0.06	0	-0.03
Tirhert	Eucrite-unbr	3.2330	1.4740	-0.222	0.06	0.02	-0.01
Jepara	Pallasite, PMG	3.1600	1.3800	-0.278	-0.01	-0.07	-0.07
Northwest Africa 10752	Diogenite	3.1590	1.3610	-0.296	-0.01	-0.09	-0.08
Northwest Africa 2968	Achondrite-ung	3.0800	1.4400	-0.176	-0.09	-0.01	0.04
Northwest Africa 4223	Diogenite	3.0800	1.4400	-0.176	-0.09	-0.01	0.04
Yamato 980318	Eucrite-cm	3.1800	1.3600	-0.308	0.01	-0.09	-0.1
Yamato 980318	Eucrite-cm	3.1800	1.3600	-0.308	0.01	-0.09	-0.1
Chasseron	Pallasite, PMG	3.2390	1.5140	-0.186	0.07	0.06	0.03
Northwest Africa 5784	Diogenite	3.1000	1.3900	-0.237	-0.07	-0.06	-0.02
Tirhert	Eucrite-unbr	3.2680	1.4510	-0.264	0.1	-0	-0.05
Erg Chech 002	Achondrite-ung	3.2010	1.5480	-0.132	0.03	0.1	0.08
Northwest Africa 10019	Pallasite, ungrouped	3.2860	1.4790	-0.245	0.12	0.03	-0.03
Graves Nunataks 98098	Eucrite-unbr	3.3000	1.4000	-0.331	0.13	-0.05	-0.12
Northwest Africa 8404	Diogenite-olivine	3.1030	1.3280	-0.3	-0.07	-0.12	-0.09
Northwest Africa 10154	Diogenite-an	3.0860	1.3320	-0.287	-0.08	-0.12	-0.08
Hambleton	Pallasite, PMG	3.0290	1.3830	-0.206	-0.14	-0.07	0.01
Northwest Africa 10252	Pallasite, PMG-an	3.0490	1.3510	-0.249	-0.12	-0.1	-0.04
Northwest Africa 4255	Diogenite	3.2500	1.3100	-0.395	0.08	-0.14	-0.18
Jepara	Pallasite, PMG	3.0110	1.3670	-0.213	-0.16	-0.08	-0
Thiel Mountains 07016	Pallasite	3.3100	1.5700	-0.167	0.14	0.12	0.05
Northwest Africa 1882	Mesosiderite-C	3.3600	1.4200	-0.343	0.19	-0.03	-0.13
Northwest Africa 10019	Pallasite, ungrouped	3.3590	1.5290	-0.233	0.19	0.08	-0.02
Northwest Africa 5312	Mesosiderite	3.3640	1.5450	-0.22	0.19	0.09	-0.01
Northwest Africa 5721	Eucrite	2.9900	1.3200	-0.249	-0.18	-0.13	-0.04
Ramlat as Sahmah 287	Diogenite	3.3800	1.5300	-0.243	0.21	0.08	-0.03
Northwest Africa 8739	Eucrite-pmict	2.9900	1.3120	-0.257	-0.18	-0.14	-0.04
Northwest Africa 10023	Pallasite, PMG-an	3.3680	1.5720	-0.195	0.2	0.12	0.02
Northwest Africa 10752	Diogenite	3.0060	1.2790	-0.298	-0.16	-0.17	-0.09
Northwest Africa 5743	Howardite	3.4100	1.5200	-0.269	0.24	0.07	-0.06
Tirhert	Eucrite-unbr	2.9610	1.3140	-0.24	-0.21	-0.14	-0.03
Northwest Africa 5743	Howardite	3.4100	1.5300	-0.259	0.24	0.08	-0.05
Tirhert	Eucrite-unbr	3.4150	1.5240	-0.268	0.24	0.07	-0.06
Sayh al Uhaymir 493	Achondrite-ung	3.4100	1.5400	-0.249	0.24	0.09	-0.04
Northwest Africa 8739	Eucrite-pmict	3.4200	1.5080	-0.286	0.25	0.06	-0.07
Bilanga	Diogenite	3.4100	1.3500	-0.439	0.24	-0.1	-0.23
Northwest Africa 4271	Eucrite-pmict	3.3400	1.2500	-0.502	0.17	-0.2	-0.29
Frontier Mountain 97045	Eucrite-pmict	3.4100	1.5700	-0.219	0.24	0.12	-0.01
Northwest Africa 10019	Pallasite, ungrouped	3.4260	1.5710	-0.226	0.26	0.12	-0.01
Northwest Africa 2739	Howardite	3.4390	1.5540	-0.25	0.27	0.1	-0.04
Northwest Africa 10752	Diogenite	3.4490	1.5400	-0.269	0.28	0.09	-0.06
Northwest Africa 5721	Eucrite	2.9300	1.2600	-0.277	-0.24	-0.19	-0.07
Northwest Africa 8404	Diogenite-olivine	3.4770	1.5100	-0.314	0.31	0.06	-0.1
Berthoud	Eucrite-mmict	3.4600	1.5800	-0.235	0.29	0.13	-0.02
Jiddat al Harasis 804	Eucrite	3.4730	1.5610	-0.261	0.3	0.11	-0.05
Yamato 981710	Diogenite	3.4900	1.3800	-0.451	0.32	-0.07	-0.24
Northwest Africa 8777	Achondrite-ung	2.9120	1.2390	-0.289	-0.26	-0.21	-0.08
Northwest Africa 6686	Howardite	3.4800	1.5800	-0.246	0.31	0.13	-0.03
Northwest Africa 12562	Achondrite-ung	3.4770	1.6090	-0.215	0.31	0.16	-0
Tirhert	Eucrite-unbr	2.8660	1.2860	-0.218	-0.3	-0.17	-0.01
Northwest Africa 12562	Achondrite-ung	3.4920	1.6190	-0.213	0.32	0.17	-0
Northwest Africa 6489	Diogenite	3.5040	1.5980	-0.24	0.33	0.15	-0.03
Jiddat al Harasis 804	Eucrite	3.5010	1.6130	-0.224	0.33	0.16	-0.01
Northwest Africa 8777	Achondrite-ung	2.8510	1.2570	-0.239	-0.32	-0.19	-0.03
Northwest Africa 8614	Winonaite	3.5430	1.4160	-0.442	0.37	-0.04	-0.23
Northwest Africa 10019	Pallasite, ungrouped	3.5160	1.5990	-0.246	0.35	0.15	-0.03
Yamato 981651	Eucrite	3.5500	1.4400	-0.422	0.38	-0.01	-0.21
Sayh al Uhaymir 493	Achondrite-ung	3.5300	1.5900	-0.262	0.36	0.14	-0.05
Miller Range 07613	Diogenite	3.5500	1.5500	-0.312	0.38	0.1	-0.1
Miller Range 07001	Diogenite-olivine	3.5500	1.3400	-0.522	0.38	-0.11	-0.31
Miller Range 07003	Diogenite	3.5700	1.5700	-0.303	0.4	0.12	-0.09
Northwest Africa 10019	Pallasite, ungrouped	3.5480	1.6350	-0.226	0.38	0.18	-0.01
Northwest Africa 10023	Pallasite, PMG-an	3.5540	1.6300	-0.235	0.38	0.18	-0.02
Miller Range 07613	Diogenite	3.5700	1.6200	-0.253	0.4	0.17	-0.04
Elephant Moraine 99402	Brachinite	3.5700	1.6500	-0.223	0.4	0.2	-0.01
Northwest Africa 5784	Diogenite	3.5600	1.6700	-0.198	0.39	0.22	0.01
Northwest Africa 5961	Eucrite-mmict	3.5800	1.6300	-0.248	0.41	0.18	-0.04
Northwest Africa 1461	Diogenite	3.5840	1.6340	-0.246	0.41	0.18	-0.03
Northwest Africa 10765	Mesosiderite	3.5790	1.6450	-0.233	0.41	0.19	-0.02
Northwest Africa 5738	Eucrite-br	3.5900	1.6200	-0.263	0.42	0.17	-0.05
Northwest Africa 2968	Achondrite-ung	3.6400	1.4600	-0.449	0.47	0.01	-0.24
Northwest Africa 10019	Pallasite, ungrouped	3.6070	1.6300	-0.262	0.44	0.18	-0.05
Northwest Africa 6909	Eucrite	3.6000	1.6470	-0.242	0.43	0.2	-0.03
Northwest Africa 2775	Acapulcoite	3.2500	0.9700	-0.735	0.08	-0.48	-0.52
Northwest Africa 10023	Pallasite, PMG-an	3.6080	1.6680	-0.225	0.44	0.22	-0.01
Miller Range 07003	Diogenite	3.6600	1.4800	-0.44	0.49	0.03	-0.23
Ooldea 015	Howardite	3.6440	1.5860	-0.326	0.47	0.13	-0.11

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