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 primitive achondrites (SNCs shown for comparison). Data for brachinites, winonaites, acapulcoite-lodranite clan from Greenwood et al. (2012). Data for ureilites from Clayton and Mayeda (1999). Data for Martian meteorites (SNCs) from Franchi et al. (1999) and compiled from laser fluorination analyses in the Meteoritical Bulletin. Δ¹⁷O calculated as: Δ¹⁷O = δ¹⁷O – 0.52δ¹⁸O. Individual winonaite and acapulcoite-lodranite clan samples are very highly susceptible to terrestrial weathering resulting in large shifts in δ¹⁸O and to a lesser extent Δ¹⁷O. Most analysis points for these two groups plotted on this diagram have been cleaned in EATG (ethanolamine thioglycollate) in order to reduce the influence of terrestrial weathering (see Greenwood et al., 2012 for further details). TFL: terrestrial fractionation line, Y&R: slope 1 line (Young and Russell, 1998), CCAM: carbonaceous chondrite anhydrous mineral line (Clayton et al., 1977; Clayton and Mayeda 1999).

References:

Clayton R. N. and Mayeda T. K. (1999) Oxygen isotope studies of carbonaceous chondrites. Geochim. Cosmochim. Acta 63, 2089-2017 (link)
Clayton R. N. and Mayeda T. K. (1999) Oxygen isotope studies of carbonaceous chondrites. Geochim. Cosmochim. Acta 63, 2089-2017 (link)
Clayton R. N., Onuma N., Grossman L. and Mayeda T. K. (1977) Distribution of the pre-solar component in Allende and other carbonaceous chondrites. Earth Planet. Sci. Lett. 34, 209-224 (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., Gibson J.M. and Benedix G.K. (2012) Oxygen isotope variation in primitive achondrites: The influence of primordial, asteroidal and terrestrial processes. Geochim. Cosmochim. Acta 94, 146-163. (link)
Greenwood R.C., Franchi I.A., Gibson J.M. and Benedix G.K. (2012) Oxygen isotope variation in primitive achondrites: The influence of primordial, asteroidal and terrestrial processes. Geochim. Cosmochim. Acta 94, 146-163. (link)
Young E. D. and Russell S. S. (1998) Oxygen reservoirs in the early solar nebula inferred from an Allende CAI. Science 282, 452-455 (link)

Data summary:

δ¹⁸O	δ¹⁷O	Δ¹⁷O: given	Δ¹⁷O: linear	Comment
4.2060	1.7380	-0.4740	-0.449
4.3700	1.7630	-0.5350	-0.509

Nearest neighbors in MBDB (within 0.5 permil):

Name	Class	δ¹⁸O	δ¹⁷O	Δ¹⁷O: calc	Δ δ¹⁸O	Δ δ¹⁷O	Δ Δ¹⁷O
Northwest Africa 739	CH3	4.3200	1.7500	-0.496	0.03	-0	-0.02
Northwest Africa 13355	Eucrite-an	4.1570	1.8950	-0.267	-0.13	0.14	0.21
Northwest Africa 13457	Eucrite	4.1250	1.8750	-0.27	-0.16	0.12	0.21
Northwest Africa 6690	Diogenite	4.1900	1.9400	-0.239	-0.1	0.19	0.24
Northwest Africa 13355	Eucrite-an	4.1050	1.8710	-0.264	-0.18	0.12	0.22
Northwest Africa 10424	Eucrite-cm	4.1800	1.9500	-0.224	-0.11	0.2	0.26
Northwest Africa 12540	Eucrite-an	4.1200	1.9090	-0.233	-0.17	0.16	0.25
Northwest Africa 11264	Eucrite	4.1300	1.9300	-0.218	-0.16	0.18	0.26
Northwest Africa 12397	Mesosiderite	4.3230	1.9920	-0.256	0.04	0.24	0.22
Jiddat al Harasis 395	Diogenite	4.2300	1.9900	-0.21	-0.06	0.24	0.27
Northwest Africa 7025	Mesosiderite	4.1490	1.9610	-0.196	-0.14	0.21	0.28
Northwest Africa 4872	Brachinite	4.3080	2.0120	-0.228	0.02	0.26	0.25
Northwest Africa 4872	Brachinite	4.3080	2.0120	-0.228	0.02	0.26	0.25
Northwest Africa 12338	Achondrite-ung	4.1600	1.9800	-0.183	-0.13	0.23	0.3
Northwest Africa 2177	Eucrite	4.0600	1.8900	-0.221	-0.23	0.14	0.26
Ramlat as Sahmah 511	Eucrite	4.0800	1.9200	-0.202	-0.21	0.17	0.28
El Médano 395	Brachinite	4.2900	2.0200	-0.211	0	0.27	0.27
Tindouf 005	Eucrite-pmict	4.0500	1.8900	-0.216	-0.24	0.14	0.26
Northwest Africa 6484	Lodranite	4.5420	1.6350	-0.727	0.25	-0.12	-0.25
Northwest Africa 10603	Eucrite-melt breccia	4.0300	1.8650	-0.231	-0.26	0.11	0.25
Jiddat al Harasis 845	Mesosiderite-C2	4.0770	1.9380	-0.182	-0.21	0.19	0.3
Northwest Africa 11917	Winonaite	4.5410	1.8760	-0.485	0.25	0.13	-0.01
Northwest Africa 2627	Acapulcoite	4.5100	1.5600	-0.785	0.22	-0.19	-0.31
Jiddat al Harasis 556	Howardite	4.0200	1.8800	-0.21	-0.27	0.13	0.27
Jiddat al Harasis 845	Mesosiderite-C2	4.0450	1.9290	-0.174	-0.24	0.18	0.3
Northwest Africa 10639	Eucrite-mmict	4.0100	1.8700	-0.215	-0.28	0.12	0.26
Dar al Gani 1060	Eucrite	4.0000	1.8500	-0.23	-0.29	0.1	0.25
Northwest Africa 12689	Eucrite-br	3.9970	1.8550	-0.223	-0.29	0.1	0.26
Allan Hills 12073	Eucrite	4.4000	2.0400	-0.248	0.11	0.29	0.23
Northwest Africa 7025	Mesosiderite	3.9920	1.8470	-0.229	-0.3	0.1	0.25
Northwest Africa 4051	Eucrite	3.9940	1.8610	-0.216	-0.29	0.11	0.26
Northwest Africa 7035	Eucrite-mmict	3.9930	1.8670	-0.209	-0.3	0.12	0.27
Northwest Africa 4872	Brachinite	4.3540	2.0610	-0.203	0.07	0.31	0.28
Northwest Africa 4872	Brachinite	4.3540	2.0610	-0.203	0.07	0.31	0.28
Northwest Africa 4908	Eucrite	4.0250	1.9310	-0.162	-0.26	0.18	0.32
Northwest Africa 1500	Achondrite-ung	4.5600	1.5800	-0.791	0.27	-0.17	-0.31
Acfer 366	CH3	4.6100	1.7810	-0.616	0.32	0.03	-0.14
Northwest Africa 4882	Brachinite	4.3680	2.0640	-0.207	0.08	0.31	0.27
Northwest Africa 4882	Brachinite	4.3680	2.0640	-0.207	0.08	0.31	0.27
Pecora Escarpment 01021	Eucrite-mmict	3.9810	1.8730	-0.197	-0.31	0.12	0.28
El Hassan Ould Hamed 001	Eucrite-unbr	3.9630	1.8120	-0.249	-0.33	0.06	0.23
Dhofar 1480	Eucrite-pmict	3.9630	1.8480	-0.213	-0.33	0.1	0.27
Northwest Africa 10319	Eucrite-cm	3.9600	1.8400	-0.219	-0.33	0.09	0.26
El Médano 096	Acapulcoite	4.3000	1.4100	-0.826	0.01	-0.34	-0.35
Los Vientos 263	Pallasite, ungrouped	4.3400	2.0900	-0.167	0.05	0.34	0.31
Northwest Africa 8659	Eucrite	4.3760	2.0830	-0.193	0.09	0.33	0.29
Northwest Africa 7025	Mesosiderite	4.3870	2.0820	-0.199	0.1	0.33	0.28
El Hassan Ould Hamed 001	Eucrite-unbr	3.9440	1.7890	-0.262	-0.34	0.04	0.22
Ramlat as Sahmah 309	Brachinite	4.3700	2.0900	-0.182	0.08	0.34	0.3
Northwest Africa 4636	Mesosiderite	4.3800	2.0900	-0.188	0.09	0.34	0.29
Northwest Africa 12540	Eucrite-an	3.9360	1.7860	-0.261	-0.35	0.04	0.22
Northwest Africa 4395	Diogenite	4.3900	2.0900	-0.193	0.1	0.34	0.29
Northwest Africa 2627	Acapulcoite	4.5100	1.4700	-0.875	0.22	-0.28	-0.4
Northwest Africa 2999	Angrite	4.0930	2.0540	-0.074	-0.2	0.3	0.4
Jiddat al Harasis 404	Eucrite	3.9400	1.8500	-0.199	-0.35	0.1	0.28
Al Hawaya 004	Eucrite-pmict	3.9300	1.8200	-0.224	-0.36	0.07	0.26
Northwest Africa 10019	Pallasite, ungrouped	3.9350	1.8460	-0.2	-0.35	0.1	0.28
Northwest Africa 11486	Eucrite	3.9300	1.8300	-0.214	-0.36	0.08	0.27
Northwest Africa 2999	Angrite	4.1540	2.0950	-0.065	-0.13	0.34	0.41
Northwest Africa 7812	Angrite	4.0680	2.0510	-0.064	-0.22	0.3	0.41
Northwest Africa 12540	Eucrite-an	3.9110	1.7780	-0.256	-0.38	0.03	0.22
Northwest Africa 7812	Angrite	4.0030	2.0000	-0.082	-0.29	0.25	0.4
Northwest Africa 4882	Brachinite	4.4550	2.0950	-0.222	0.17	0.34	0.26
Northwest Africa 4882	Brachinite	4.4550	2.0950	-0.222	0.17	0.34	0.26
Northwest Africa 8661	Eucrite	3.9140	1.8680	-0.167	-0.37	0.12	0.31
Northwest Africa 6713	Mesosiderite	3.9000	1.8200	-0.208	-0.39	0.07	0.27
Northwest Africa 12543	Winonaite	4.6620	1.8800	-0.544	0.37	0.13	-0.06
Northwest Africa 10023	Pallasite, PMG-an	3.8870	1.7530	-0.268	-0.4	0	0.21
Dhofar 1626	Eucrite-an	3.8890	1.8080	-0.214	-0.4	0.06	0.26
Northwest Africa 10640	Eucrite-mmict	3.8900	1.8200	-0.203	-0.4	0.07	0.28
Northwest Africa 7035	Eucrite-mmict	3.8870	1.8150	-0.206	-0.4	0.06	0.27
Northwest Africa 8535	Angrite	3.9250	1.9340	-0.107	-0.36	0.18	0.37
Northwest Africa 10019	Pallasite, ungrouped	3.8780	1.7600	-0.257	-0.41	0.01	0.22
Northwest Africa 7831	Diogenite	3.8790	1.7930	-0.224	-0.41	0.04	0.26
Northwest Africa 10320	Eucrite-cm	3.8800	1.8100	-0.208	-0.41	0.06	0.27
Miller Range 07662	Eucrite-br	3.8900	1.6400	-0.383	-0.4	-0.11	0.1
Northwest Africa 5363	Achondrite-ung	4.1830	2.1520	-0.023	-0.11	0.4	0.46
Fortuna	Winonaite	4.6800	1.6100	-0.824	0.39	-0.14	-0.34
Northwest Africa 7831	Diogenite	3.8750	1.8100	-0.205	-0.41	0.06	0.27
Northwest Africa 10019	Pallasite, ungrouped	3.8710	1.7840	-0.229	-0.42	0.03	0.25
La'gad 002	Pallasite, PMG-an	3.8610	1.7770	-0.231	-0.43	0.03	0.25
Umm as Samim 024	Eucrite-cm	3.8600	1.7200	-0.287	-0.43	-0.03	0.19
Northwest Africa 12937	Eucrite	3.8550	1.7700	-0.235	-0.43	0.02	0.24
Miller Range 07662	Eucrite-br	3.8600	1.6800	-0.327	-0.43	-0.07	0.15
Northwest Africa 6474	Brachinite	4.2340	2.1810	-0.021	-0.05	0.43	0.46
Hassi el Biod 001	Diogenite-an	3.8520	1.7530	-0.25	-0.44	0	0.23
Northwest Africa 12217	Achondrite-ung	3.8690	1.8840	-0.128	-0.42	0.13	0.35
Northwest Africa 3211	Eucrite	3.8500	1.7100	-0.292	-0.44	-0.04	0.19
Northwest Africa 7835	Achondrite-ung	3.8700	1.8890	-0.123	-0.42	0.14	0.36
Northwest Africa 8671	Eucrite-an	3.8470	1.7360	-0.264	-0.44	-0.01	0.21
Northwest Africa 12004	Angrite	4.2840	2.1970	-0.031	-0	0.45	0.45
Northwest Africa 3212	Eucrite	3.8400	1.7400	-0.257	-0.45	-0.01	0.22
Northwest Africa 1670	Angrite	3.8870	1.9670	-0.054	-0.4	0.22	0.43
Pecora Escarpment 01021	Eucrite-mmict	3.8310	1.7400	-0.252	-0.46	-0.01	0.23
Hassi el Biod 001	Diogenite-an	3.8300	1.7480	-0.244	-0.46	-0	0.24
Northwest Africa 4418	Mesosiderite	4.5240	2.1450	-0.207	0.24	0.39	0.27
Northwest Africa 4590	Angrite	3.8810	1.9670	-0.051	-0.41	0.22	0.43
Northwest Africa 3213	Mesosiderite	4.5500	2.1300	-0.236	0.26	0.38	0.24
Thiel Mountains 07009	EL6	4.2100	2.2100	0.021	-0.08	0.46	0.5
Northwest Africa 6474	Brachinite	3.8790	1.9800	-0.037	-0.41	0.23	0.44
Northwest Africa 10019	Pallasite, ungrouped	3.8170	1.7630	-0.222	-0.47	0.01	0.26
Northwest Africa 7812	Angrite	3.8640	1.9570	-0.052	-0.42	0.21	0.43
Hassi el Biod 001	Diogenite-an	3.8160	1.7340	-0.25	-0.47	-0.02	0.23
Yamato 980110	Ureilite	4.6000	1.3900	-1.002	0.31	-0.36	-0.52
Northwest Africa 4590	Angrite	3.8450	1.9270	-0.072	-0.44	0.18	0.41
Northwest Africa 4590	Angrite	3.8450	1.9270	-0.072	-0.44	0.18	0.41
Northwest Africa 7193	Eucrite-an	3.8100	1.7800	-0.201	-0.48	0.03	0.28
Jepara	Pallasite, PMG	3.8200	1.8620	-0.124	-0.47	0.11	0.35
Northwest Africa 7193	Eucrite-an	3.8100	1.8400	-0.141	-0.48	0.09	0.34
Northwest Africa 5349	Eucrite-pmict	3.8000	1.7300	-0.246	-0.49	-0.02	0.23
Northwest Africa 12938	Eucrite	3.7950	1.7450	-0.228	-0.49	-0.01	0.25
Northwest Africa 12951	Winonaite	4.7300	1.9690	-0.491	0.44	0.22	-0.01
Northwest Africa 12562	Achondrite-ung	3.7950	1.7880	-0.185	-0.49	0.04	0.29
Northwest Africa 4523	Eucrite	3.7910	1.7570	-0.214	-0.5	0.01	0.26
Northwest Africa 6474	Brachinite	3.8290	1.9430	-0.048	-0.46	0.19	0.43
Northwest Africa 1645	Mesosiderite-B	3.7900	1.7600	-0.211	-0.5	0.01	0.27

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