Oxygen Isotope Plots

MetSoc Home Publications Contacts

Meteoritical Bulletin: Oxygen Isotope Plots

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
4.8220	2.3700	-0.1760	-0.137

Nearest neighbors in MBDB (within 0.5 permil):

Name	Class	δ¹⁸O	δ¹⁷O	Δ¹⁷O: calc	Δ δ¹⁸O	Δ δ¹⁷O	Δ Δ¹⁷O
Northwest Africa 10637	Brachinite	4.7940	2.4050	-0.088	-0.03	0.03	0.05
Northwest Africa 3151	Brachinite	4.8600	2.4200	-0.107	0.04	0.05	0.03
El Médano 395	Brachinite	4.8970	2.3290	-0.217	0.08	-0.04	-0.08
Old Homestead 003	Howardite	4.8800	2.3000	-0.238	0.06	-0.07	-0.1
Northwest Africa 6023	Brachinite-an	4.8380	2.2690	-0.247	0.02	-0.1	-0.11
Al Huwaysah 010	Achondrite-ung	4.7300	2.3100	-0.15	-0.09	-0.06	-0.01
Northwest Africa 11729	Eucrite-an	4.9340	2.3010	-0.265	0.11	-0.07	-0.13
Northwest Africa 10602	Eucrite-melt breccia	4.9520	2.3490	-0.226	0.13	-0.02	-0.09
Northwest Africa 7904	Brachinite	4.7810	2.2100	-0.276	-0.04	-0.16	-0.14
Northwest Africa 5400	Achondrite-ung	4.8800	2.5250	-0.013	0.06	0.16	0.12
Northwest Africa 8059	LL3.05	4.7020	2.2280	-0.217	-0.12	-0.14	-0.08
Northwest Africa 10423	Eucrite-cm	4.6900	2.2300	-0.209	-0.13	-0.14	-0.07
Jiddat al Harasis 556	Howardite	4.9800	2.4800	-0.11	0.16	0.11	0.03
Old Homestead 003	Howardite	5.0200	2.3700	-0.24	0.2	0	-0.1
Northwest Africa 10497	Brachinite	4.6700	2.2200	-0.208	-0.15	-0.15	-0.07
Northwest Africa 6152	Brachinite	4.6500	2.2400	-0.178	-0.17	-0.13	-0.04
Northwest Africa 6152	Brachinite	4.6500	2.2300	-0.188	-0.17	-0.14	-0.05
Northwest Africa 8124	LL3	4.7180	2.5680	0.115	-0.1	0.2	0.25
Northwest Africa 8173	Enst achon	4.6000	2.4000	0.008	-0.22	0.03	0.15
Northwest Africa 10637	Brachinite	5.0480	2.4020	-0.223	0.23	0.03	-0.09
Northwest Africa 2904	Eucrite-pmict	4.7400	2.1300	-0.335	-0.08	-0.24	-0.2
Northwest Africa 6292	Achondrite-ung	4.5500	2.4200	0.054	-0.27	0.05	0.19
Northwest Africa 12320	Angrite	4.5450	2.3390	-0.024	-0.28	-0.03	0.11
Northwest Africa 1457	Winonaite	5.1000	2.3000	-0.352	0.28	-0.07	-0.21
Northwest Africa 6023	Brachinite-an	5.1100	2.4020	-0.255	0.29	0.03	-0.12
Northwest Africa 8173	Enst achon	5.0130	2.6050	-0.002	0.19	0.24	0.14
Zag (b)	Winonaite	4.8400	2.0600	-0.457	0.02	-0.31	-0.32
El Médano 395	Brachinite	4.5820	2.1700	-0.213	-0.24	-0.2	-0.08
Northwest Africa 7904	Brachinite	4.9990	2.6340	0.035	0.18	0.26	0.17
Northwest Africa 4741	Achondrite-ung	4.9900	2.6400	0.045	0.17	0.27	0.18
Northwest Africa 2904	Eucrite-pmict	4.5800	2.1600	-0.222	-0.24	-0.21	-0.08
Northwest Africa 12241	Martian (shergottite)	4.6200	2.6350	0.233	-0.2	0.27	0.37
Northwest Africa 5400	Achondrite-ung	4.4860	2.3670	0.034	-0.34	-0	0.17
Northwest Africa 10851	Winonaite	5.0780	2.1490	-0.492	0.26	-0.22	-0.35
Northwest Africa 4537	Aubrite	5.0210	2.6500	0.039	0.2	0.28	0.18
Northwest Africa 6023	Brachinite-an	5.1620	2.4450	-0.239	0.34	0.07	-0.1
Northwest Africa 10808	Martian (shergottite)	4.6600	2.6830	0.26	-0.16	0.31	0.4
Allan Hills 84001	Martian (OPX)	4.6000	2.6500	0.258	-0.22	0.28	0.4
Dhofar 1983	Lunar (feldsp. breccia)	5.1000	2.6000	-0.052	0.28	0.23	0.09
Northwest Africa 3213	Mesosiderite	4.5500	2.1300	-0.236	-0.27	-0.24	-0.1
Northwest Africa 10593	Martian (shergottite)	4.6910	2.7100	0.271	-0.13	0.34	0.41
Northwest Africa 5548	Achondrite-ung	5.0000	2.6900	0.09	0.18	0.32	0.23
Northwest Africa 6448	Winonaite	5.1340	2.1670	-0.503	0.31	-0.2	-0.37
Northwest Africa 4418	Mesosiderite	4.5240	2.1450	-0.207	-0.3	-0.23	-0.07
Northwest Africa 8679	Martian (shergottite)	4.5620	2.6420	0.27	-0.26	0.27	0.41
Northwest Africa 2986	Martian (shergottite)	4.5900	2.6700	0.283	-0.23	0.3	0.42
Northwest Africa 10593	Martian (shergottite)	4.7140	2.7360	0.285	-0.11	0.37	0.42
Northwest Africa 7032	Martian (shergottite)	4.5990	2.6810	0.29	-0.22	0.31	0.43
Northwest Africa 8686	Martian (shergottite)	4.6710	2.7230	0.294	-0.15	0.35	0.43
Northwest Africa 10720	Martian (nakhlite)	4.5810	2.6690	0.287	-0.24	0.3	0.42
Northwest Africa 2251	Howardite	5.2000	2.3000	-0.404	0.38	-0.07	-0.27
Northwest Africa 7755	Martian (shergottite)	4.6960	2.7350	0.293	-0.13	0.37	0.43
Northwest Africa 12543	Winonaite	5.1180	2.1200	-0.541	0.3	-0.25	-0.4
Northwest Africa 6448	Winonaite	5.1550	2.1660	-0.515	0.33	-0.2	-0.38
Northwest Africa 10153	Martian (nakhlite)	4.5790	2.6770	0.296	-0.24	0.31	0.43
Dhofar 378	Martian (shergottite)	4.4600	2.5200	0.201	-0.36	0.15	0.34
Northwest Africa 5400	Achondrite-ung	5.0610	2.6810	0.049	0.24	0.31	0.19
Northwest Africa 4042	Achondrite-ung	5.1780	2.5390	-0.154	0.36	0.17	-0.02
Northwest Africa 10416	Martian	4.6270	2.7160	0.31	-0.2	0.35	0.45
Northwest Africa 12004	Angrite	4.4400	2.2580	-0.051	-0.38	-0.11	0.09
Northwest Africa 8679	Martian (shergottite)	4.6800	2.7420	0.308	-0.14	0.37	0.45
Northwest Africa 10416	Martian	4.7400	2.7600	0.295	-0.08	0.39	0.43
Northwest Africa 2986	Martian (shergottite)	4.6500	2.7300	0.312	-0.17	0.36	0.45
Northwest Africa 10593	Martian (shergottite)	4.4840	2.5820	0.25	-0.34	0.21	0.39
Northwest Africa 12004	Angrite	4.4310	2.2850	-0.019	-0.39	-0.09	0.12
Northwest Africa 8276	L3.00	4.6430	2.7340	0.32	-0.18	0.36	0.46
Northwest Africa 6162	Martian (shergottite)	4.6800	2.7500	0.316	-0.14	0.38	0.45
Dar al Gani 476	Martian (shergottite)	4.5700	2.6900	0.314	-0.25	0.32	0.45
Northwest Africa 10416	Martian	4.5390	2.6680	0.308	-0.28	0.3	0.45
Northwest Africa 8694	Martian (Chassignite)	4.5500	2.6800	0.314	-0.27	0.31	0.45
Northwest Africa 10416	Martian	4.5000	2.6300	0.29	-0.32	0.26	0.43
Sayh al Uhaymir 150	Martian (shergottite)	4.7400	2.7800	0.315	-0.08	0.41	0.45
Northwest Africa 12320	Angrite	4.4160	2.2680	-0.028	-0.41	-0.1	0.11
Northwest Africa 7387	Martian (shergottite)	4.5400	2.6800	0.319	-0.28	0.31	0.46
Northwest Africa 5718	Martian (shergottite)	4.4700	2.6000	0.276	-0.35	0.23	0.41
Northwest Africa 6023	Brachinite-an	5.2260	2.4910	-0.227	0.4	0.12	-0.09
Northwest Africa 8656	Martian (shergottite)	4.6920	2.7720	0.332	-0.13	0.4	0.47
Northwest Africa 12320	Angrite	4.4070	2.2810	-0.011	-0.42	-0.09	0.13
Northwest Africa 2986	Martian (shergottite)	4.4500	2.5800	0.266	-0.37	0.21	0.4
Northwest Africa 8686	Martian (shergottite)	4.4170	2.5110	0.214	-0.41	0.14	0.35
Northwest Africa 10720	Martian (nakhlite)	4.8020	2.8000	0.303	-0.02	0.43	0.44
Northwest Africa 2986	Martian (shergottite)	4.7800	2.8000	0.314	-0.04	0.43	0.45
Northwest Africa 5548	Achondrite-ung	5.0800	2.7200	0.078	0.26	0.35	0.22
Northwest Africa 10153	Martian (nakhlite)	4.4460	2.5910	0.279	-0.38	0.22	0.42
Northwest Africa 8649	LL3.05	4.4640	2.6230	0.302	-0.36	0.25	0.44
Northwest Africa 10808	Martian (shergottite)	4.6020	2.7510	0.358	-0.22	0.38	0.5
Northwest Africa 12241	Martian (shergottite)	4.8750	2.8080	0.273	0.05	0.44	0.41
Northwest Africa 10808	Martian (shergottite)	4.7800	2.8100	0.324	-0.04	0.44	0.46
Northwest Africa 12522	Martian (shergottite)	4.4260	2.5670	0.265	-0.4	0.2	0.4
Northwest Africa 10808	Martian (shergottite)	4.7790	2.8120	0.327	-0.04	0.44	0.46
Northwest Africa 10851	Winonaite	5.2420	2.2240	-0.502	0.42	-0.15	-0.36
Northwest Africa 7258	Martian (shergottite)	4.7160	2.8040	0.352	-0.11	0.43	0.49
Northwest Africa 7032	Martian (shergottite)	4.4230	2.5770	0.277	-0.4	0.21	0.41
Northwest Africa 11115	Martian (shergottite)	4.7700	2.8170	0.337	-0.05	0.45	0.47
Northwest Africa 7944	Martian (shergottite)	4.8920	2.8190	0.275	0.07	0.45	0.41
Northwest Africa 4882	Brachinite	4.4550	2.0950	-0.222	-0.37	-0.28	-0.08
Northwest Africa 4882	Brachinite	4.4550	2.0950	-0.222	-0.37	-0.28	-0.08
Northwest Africa 11115	Martian (shergottite)	4.8210	2.8290	0.322	-0	0.46	0.46
Northwest Africa 7257	Martian (shergottite)	4.8200	2.8300	0.324	-0	0.46	0.46
Northwest Africa 6077	Achondrite-ung	5.1800	2.6670	-0.027	0.36	0.3	0.11
Thiel Mountains 07014	Eucrite	5.2700	2.5100	-0.23	0.45	0.14	-0.09
Larkman Nunatak 06319	Martian (shergottite)	4.9200	2.8300	0.272	0.1	0.46	0.41
Northwest Africa 7904	Brachinite	5.1660	2.6940	0.008	0.34	0.32	0.15
Northwest Africa 8649	LL3.05	4.6390	2.8070	0.395	-0.18	0.44	0.53
Northwest Africa 10416	Martian	4.3920	2.5730	0.289	-0.43	0.2	0.43
Northwest Africa 10637	Brachinite	5.2730	2.5260	-0.216	0.45	0.16	-0.08
Dar al Gani 670	Martian (shergottite)	4.9500	2.8300	0.256	0.13	0.46	0.39
Northwest Africa 8656	Martian (shergottite)	4.4170	2.6230	0.326	-0.41	0.25	0.46
Tissint	Martian (shergottite)	4.8440	2.8490	0.33	0.02	0.48	0.47
Northwest Africa 11044	Martian (shergottite)	4.8260	2.8500	0.34	0	0.48	0.48
Larkman Nunatak 06319	Martian (shergottite)	4.8500	2.8500	0.328	0.03	0.48	0.47
Northwest Africa 10416	Martian	4.4450	2.6740	0.363	-0.38	0.3	0.5
Northwest Africa 7257	Martian (shergottite)	4.7400	2.8500	0.385	-0.08	0.48	0.52
Northwest Africa 4222	Martian (shergottite)	4.9100	2.8500	0.297	0.09	0.48	0.43
Northwest Africa 8679	Martian (shergottite)	4.9340	2.8450	0.279	0.11	0.48	0.42
Northwest Africa 10720	Martian (nakhlite)	4.9030	2.8540	0.304	0.08	0.48	0.44
Northwest Africa 10593	Martian (shergottite)	4.3730	2.5760	0.302	-0.45	0.21	0.44
Silistra	Achondrite-ung	5.3000	2.5000	-0.256	0.48	0.13	-0.12

Direct link to this plot