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
4.7810	2.2100	-0.3140	-0.276
4.9990	2.6340	-0.0050	0.035
5.1660	2.6940	-0.0340	0.008
5.3480	2.7970	-0.0270	0.016

Nearest neighbors in MBDB (within 0.5 permil):

Name	Class	δ¹⁸O	δ¹⁷O	Δ¹⁷O: calc	Δ δ¹⁸O	Δ δ¹⁷O	Δ Δ¹⁷O
Dhofar 1983	Lunar (feldsp. breccia)	5.1000	2.6000	-0.052	0.03	0.02	0
Northwest Africa 8173	Enst achon	5.0130	2.6050	-0.002	-0.06	0.02	0.05
Northwest Africa 4537	Aubrite	5.0210	2.6500	0.039	-0.05	0.07	0.09
Northwest Africa 5400	Achondrite-ung	5.0610	2.6810	0.049	-0.01	0.1	0.1
Northwest Africa 4741	Achondrite-ung	4.9900	2.6400	0.045	-0.08	0.06	0.1
Northwest Africa 4042	Achondrite-ung	5.1780	2.5390	-0.154	0.1	-0.04	-0.1
Northwest Africa 5548	Achondrite-ung	5.0000	2.6900	0.09	-0.07	0.11	0.14
Northwest Africa 6077	Achondrite-ung	5.1800	2.6670	-0.027	0.11	0.08	0.03
Northwest Africa 5548	Achondrite-ung	5.0800	2.7200	0.078	0.01	0.14	0.13
Jiddat al Harasis 556	Howardite	4.9800	2.4800	-0.11	-0.09	-0.1	-0.06
Northwest Africa 6023	Brachinite-an	5.1620	2.4450	-0.239	0.09	-0.14	-0.18
Northwest Africa 6023	Brachinite-an	5.2260	2.4910	-0.227	0.15	-0.09	-0.17
Northwest Africa 10637	Brachinite	5.0480	2.4020	-0.223	-0.03	-0.18	-0.17
Northwest Africa 6023	Brachinite-an	5.1100	2.4020	-0.255	0.04	-0.18	-0.2
Northwest Africa 5400	Achondrite-ung	4.8800	2.5250	-0.013	-0.19	-0.06	0.04
Northwest Africa 10637	Brachinite	5.2730	2.5260	-0.216	0.2	-0.06	-0.16
Thiel Mountains 07014	Eucrite	5.2700	2.5100	-0.23	0.2	-0.07	-0.18
Northwest Africa 5400	Achondrite-ung	5.2230	2.7410	0.025	0.15	0.16	0.08
Old Homestead 003	Howardite	5.0200	2.3700	-0.24	-0.05	-0.21	-0.19
Northwest Africa 8173	Enst achon	5.2650	2.7080	-0.03	0.19	0.12	0.02
Northwest Africa 8059	LL3.05	5.2770	2.6880	-0.056	0.2	0.1	-0
Silistra	Achondrite-ung	5.3000	2.5000	-0.256	0.23	-0.08	-0.2
Northwest Africa 10602	Eucrite-melt breccia	4.9520	2.3490	-0.226	-0.12	-0.23	-0.17
Northwest Africa 3151	Brachinite	4.8600	2.4200	-0.107	-0.21	-0.16	-0.05
Northwest Africa 4929	Brachinite	5.3300	2.4900	-0.282	0.26	-0.09	-0.23
Dar al Gani 670	Martian (shergottite)	4.9500	2.8300	0.256	-0.12	0.25	0.31
Northwest Africa 1457	Winonaite	5.1000	2.3000	-0.352	0.03	-0.28	-0.3
Larkman Nunatak 06319	Martian (shergottite)	4.9200	2.8300	0.272	-0.15	0.25	0.33
Northwest Africa 8679	Martian (shergottite)	4.9340	2.8450	0.279	-0.14	0.26	0.33
Northwest Africa 7944	Martian (shergottite)	4.8920	2.8190	0.275	-0.18	0.24	0.33
Northwest Africa 12241	Martian (shergottite)	4.8750	2.8080	0.273	-0.2	0.22	0.33
Northwest Africa 10153	Martian (nakhlite)	4.9630	2.8700	0.289	-0.11	0.29	0.34
Northwest Africa 8686	Martian (shergottite)	4.9840	2.8790	0.287	-0.09	0.3	0.34
El Médano 395	Brachinite	4.8970	2.3290	-0.217	-0.18	-0.25	-0.16
Northwest Africa 2251	Howardite	5.2000	2.3000	-0.404	0.13	-0.28	-0.35
Northwest Africa 4222	Martian (shergottite)	4.9100	2.8500	0.297	-0.16	0.27	0.35
Northwest Africa 11729	Eucrite-an	4.9340	2.3010	-0.265	-0.14	-0.28	-0.21
Northwest Africa 10720	Martian (nakhlite)	4.9030	2.8540	0.304	-0.17	0.27	0.36
Northwest Africa 12241	Martian (shergottite)	5.0920	2.9070	0.259	0.02	0.32	0.31
Dar al Gani 489	Martian (shergottite)	4.9800	2.8950	0.305	-0.09	0.31	0.36
Northwest Africa 8679	Martian (shergottite)	4.9740	2.8960	0.31	-0.1	0.31	0.36
Northwest Africa 12908	Martian (shergottite)	4.9670	2.8960	0.313	-0.11	0.31	0.37
Northwest Africa 7605	Brachinite	4.8220	2.3700	-0.137	-0.25	-0.21	-0.08
Northwest Africa 10637	Brachinite	4.7940	2.4050	-0.088	-0.28	-0.18	-0.03
Tissint	Martian (shergottite)	4.9430	2.8920	0.322	-0.13	0.31	0.38
Northwest Africa 6172	Achondrite-ung	5.3500	2.7800	-0.002	0.28	0.2	0.05
Northwest Africa 8649	LL3.05	4.8960	2.8750	0.329	-0.18	0.29	0.38
Northwest Africa 12542	Martian (nakhlite)	5.0760	2.9270	0.287	0	0.34	0.34
Old Homestead 003	Howardite	4.8800	2.3000	-0.238	-0.19	-0.28	-0.18
Dhofar 622	H4-an	5.1500	2.9200	0.242	0.08	0.34	0.3
Northwest Africa 11044	Martian (shergottite)	4.8860	2.8750	0.334	-0.19	0.29	0.39
Northwest Africa 10720	Martian (nakhlite)	4.8020	2.8000	0.303	-0.27	0.22	0.36
Larkman Nunatak 06319	Martian (shergottite)	4.8500	2.8500	0.328	-0.22	0.27	0.38
Northwest Africa 11288	Martian (shergottite)	4.9320	2.9020	0.337	-0.14	0.32	0.39
Willaroy	H3.8-an	5.0300	2.9300	0.314	-0.04	0.35	0.37
Tissint	Martian (shergottite)	4.8440	2.8490	0.33	-0.23	0.27	0.38
Northwest Africa 11115	Martian (shergottite)	4.8210	2.8290	0.322	-0.25	0.25	0.38
Northwest Africa 7755	Martian (shergottite)	4.8860	2.8820	0.341	-0.19	0.3	0.4
Northwest Africa 7257	Martian (shergottite)	4.8200	2.8300	0.324	-0.25	0.25	0.38
Northwest Africa 8124	LL3	4.7180	2.5680	0.115	-0.36	-0.02	0.17
Northwest Africa 7388	Brachinite	5.4130	2.7050	-0.11	0.34	0.12	-0.06
Northwest Africa 11044	Martian (shergottite)	4.8260	2.8500	0.34	-0.25	0.27	0.39
Northwest Africa 2986	Martian (shergottite)	4.7800	2.8000	0.314	-0.29	0.22	0.37
Northwest Africa 11044	Martian (shergottite)	5.0330	2.9480	0.331	-0.04	0.36	0.39
Northwest Africa 12542	Martian (nakhlite)	5.0960	2.9500	0.3	0.02	0.37	0.35
Jiddat al Harasis 479	Martian (shergottite)	5.0700	2.9510	0.315	-0	0.37	0.37
Northwest Africa 10808	Martian (shergottite)	4.7800	2.8100	0.324	-0.29	0.23	0.38
Northwest Africa 5885	Aubrite	5.3350	2.8490	0.075	0.26	0.27	0.13
Northwest Africa 10808	Martian (shergottite)	4.7790	2.8120	0.327	-0.29	0.23	0.38
Northwest Africa 10416	Martian	4.7400	2.7600	0.295	-0.33	0.18	0.35
Elephant Moraine 87521	Lunar (basalt)	5.3900	2.7900	-0.013	0.32	0.21	0.04
Northwest Africa 11115	Martian (shergottite)	4.7700	2.8170	0.337	-0.3	0.23	0.39
Sayh al Uhaymir 150	Martian (shergottite)	4.7400	2.7800	0.315	-0.33	0.2	0.37
Northwest Africa 10593	Martian (shergottite)	4.7140	2.7360	0.285	-0.36	0.15	0.34
Dar al Gani 1037	Martian (shergottite)	5.2900	2.9100	0.159	0.22	0.33	0.21
Northwest Africa 6023	Brachinite-an	4.8380	2.2690	-0.247	-0.24	-0.31	-0.19
Northwest Africa 6369	Iron, IAB complex	5.3900	2.3500	-0.453	0.32	-0.23	-0.4
Northwest Africa 10851	Winonaite	5.2420	2.2240	-0.502	0.17	-0.36	-0.45
Northwest Africa 12908	Martian (shergottite)	4.7280	2.7800	0.321	-0.35	0.2	0.38
Northwest Africa 13432	Winonaite	5.3280	2.2720	-0.499	0.25	-0.31	-0.44
Northwest Africa 10593	Martian (shergottite)	4.6910	2.7100	0.271	-0.38	0.13	0.33
Northwest Africa 4518	Achondrite-ung	5.4700	2.6600	-0.184	0.4	0.08	-0.13
Northwest Africa 13432	Winonaite	5.1960	2.1960	-0.506	0.12	-0.39	-0.45
Northwest Africa 7755	Martian (shergottite)	4.6960	2.7350	0.293	-0.38	0.15	0.35
Northwest Africa 10659	Martian (nakhlite)	5.1390	2.9900	0.318	0.07	0.41	0.37
Northwest Africa 13179	Martian	4.7190	2.7990	0.345	-0.35	0.22	0.4
Northwest Africa 4864	Martian (shergottite)	5.1000	3.0000	0.348	0.03	0.42	0.4
Northwest Africa 7258	Martian (shergottite)	4.7160	2.8040	0.352	-0.36	0.22	0.41
Northwest Africa 7755	Martian (shergottite)	5.1880	2.9880	0.29	0.11	0.4	0.34
Northwest Africa 6448	Winonaite	5.1340	2.1670	-0.503	0.06	-0.42	-0.45
Northwest Africa 8679	Martian (shergottite)	4.6800	2.7420	0.308	-0.39	0.16	0.36
Northwest Africa 10808	Martian (shergottite)	4.6600	2.6830	0.26	-0.41	0.1	0.31
Northwest Africa 8656	Martian (shergottite)	4.6920	2.7720	0.332	-0.38	0.19	0.39
Northwest Africa 6448	Winonaite	5.1550	2.1660	-0.515	0.08	-0.42	-0.46
Northwest Africa 8686	Martian (shergottite)	4.6710	2.7230	0.294	-0.4	0.14	0.35
Northwest Africa 7257	Martian (shergottite)	4.7400	2.8500	0.385	-0.33	0.27	0.44
Northwest Africa 6162	Martian (shergottite)	4.6800	2.7500	0.316	-0.39	0.17	0.37
Northwest Africa 12908	Martian (shergottite)	4.6700	2.7380	0.31	-0.4	0.15	0.36
Northwest Africa 7042	Martian (shergottite)	5.0790	3.0160	0.375	0.01	0.43	0.43
Northwest Africa 10851	Winonaite	5.0780	2.1490	-0.492	0	-0.43	-0.44
Northwest Africa 10851	Winonaite	5.4380	2.3450	-0.483	0.36	-0.24	-0.43
Northwest Africa 480	Martian (shergottite)	4.7800	2.9100	0.424	-0.29	0.33	0.48
Al Huwaysah 010	Achondrite-ung	4.7300	2.3100	-0.15	-0.34	-0.27	-0.1
Northwest Africa 13179	Martian	4.6900	2.8010	0.362	-0.38	0.22	0.42
MacAlpine Hills 88104	Lunar (anorth)	5.5000	2.7000	-0.16	0.43	0.12	-0.11
Dhofar 1441	Achondrite-ung	5.5080	2.6750	-0.189	0.43	0.09	-0.13
Northwest Africa 2986	Martian (shergottite)	4.6500	2.7300	0.312	-0.42	0.15	0.37
Northwest Africa 8276	L3.00	4.6430	2.7340	0.32	-0.43	0.15	0.37
Northwest Africa 12241	Martian (shergottite)	4.6200	2.6350	0.233	-0.45	0.05	0.29
Northwest Africa 10416	Martian	4.6270	2.7160	0.31	-0.45	0.13	0.36
Northwest Africa 12543	Winonaite	5.1180	2.1200	-0.541	0.04	-0.46	-0.49
Northwest Africa 12951	Winonaite	5.0350	2.1190	-0.499	-0.04	-0.46	-0.44
Northwest Africa 11807	Winonaite	5.4870	2.3600	-0.493	0.41	-0.22	-0.44
Northwest Africa 2041	OC3	4.8500	3.0000	0.478	-0.22	0.42	0.53
Abar al' Uj 012	Lunar	5.4600	2.8600	0.021	0.39	0.28	0.08
Northwest Africa 13134	Martian (shergottite)	4.6360	2.7700	0.359	-0.44	0.19	0.41
Northwest Africa 11729	Eucrite-an	5.5400	2.6800	-0.201	0.47	0.1	-0.15
Allan Hills 84001	Martian (OPX)	4.6000	2.6500	0.258	-0.47	0.07	0.31
Silistra	Achondrite-ung	5.5500	2.6400	-0.246	0.48	0.06	-0.19
Ramlat Fasad 057	Martian (shergottite)	5.2570	3.0310	0.297	0.18	0.45	0.35
Northwest Africa 7032	Martian (shergottite)	4.5990	2.6810	0.29	-0.47	0.1	0.34
Northwest Africa 2041	OC3	4.8750	3.0300	0.495	-0.2	0.45	0.55
Northwest Africa 8649	LL3.05	4.6390	2.8070	0.395	-0.43	0.22	0.45
Northwest Africa 8400	H7	4.9470	3.0560	0.484	-0.13	0.47	0.54
Northwest Africa 2986	Martian (shergottite)	4.5900	2.6700	0.283	-0.48	0.09	0.34
Northwest Africa 6424	Achondrite-ung	5.4600	2.8900	0.051	0.39	0.31	0.11
Northwest Africa 10720	Martian (nakhlite)	4.5810	2.6690	0.287	-0.49	0.09	0.34

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