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
4.8380	2.2690	-0.2850	-0.247
5.1100	2.4020	-0.2960	-0.255
5.1620	2.4450	-0.2810	-0.239
5.2260	2.4910	-0.2680	-0.227

Nearest neighbors in MBDB (within 0.5 permil):

Name	Class	δ¹⁸O	δ¹⁷O	Δ¹⁷O: calc	Δ δ¹⁸O	Δ δ¹⁷O	Δ Δ¹⁷O
Northwest Africa 10637	Brachinite	5.0480	2.4020	-0.223	-0.04	0	0.02
Northwest Africa 12532	Brachinite	5.1190	2.4560	-0.206	0.04	0.05	0.04
Old Homestead 003	Howardite	5.0200	2.3700	-0.24	-0.06	-0.03	0
Grapevine Mesa	CBa	4.9980	2.4560	-0.143	-0.09	0.05	0.1
Northwest Africa 1457	Winonaite	5.1000	2.3000	-0.352	0.02	-0.1	-0.11
Northwest Africa 13673	Achondrite (brachinite-like)	5.2000	2.4440	-0.26	0.12	0.04	-0.02
Kota-Kota	EH3	5.1200	2.5200	-0.142	0.04	0.12	0.1
Jiddat al Harasis 556	Howardite	4.9800	2.4800	-0.11	-0.1	0.08	0.13
MacAlpine Hills 88136	EL3	5.0010	2.5100	-0.091	-0.08	0.11	0.15
Northwest Africa 10602	Eucrite-melt breccia	4.9520	2.3490	-0.226	-0.13	-0.05	0.02
Northwest Africa 2251	Howardite	5.2000	2.3000	-0.404	0.12	-0.1	-0.16
Happy Canyon	EL6/7	4.9860	2.5260	-0.067	-0.1	0.12	0.18
Northwest Africa 4042	Achondrite-ung	5.1780	2.5390	-0.154	0.09	0.14	0.09
Allan Hills 88046	EH3	4.9050	2.4200	-0.131	-0.18	0.02	0.11
Northwest Africa 11729	Eucrite-an	4.9340	2.3010	-0.265	-0.15	-0.1	-0.02
Northwest Africa 12532	Brachinite	4.9080	2.3450	-0.207	-0.18	-0.06	0.03
Bishopville	Aubrite	5.0850	2.5870	-0.057	0	0.19	0.18
Mayo Belwa	Aubrite	4.9530	2.5470	-0.029	-0.13	0.15	0.21
Dhofar 1983	Lunar (feldsp. breccia)	5.1000	2.6000	-0.052	0.02	0.2	0.19
Norton County	Aubrite	4.9790	2.5720	-0.017	-0.11	0.17	0.22
El Médano 395	Brachinite	4.8970	2.3290	-0.217	-0.19	-0.07	0.02
Thiel Mountains 07014	Eucrite	5.2700	2.5100	-0.23	0.19	0.11	0.01
Northwest Africa 8173	Enst achon	5.0130	2.6050	-0.002	-0.07	0.2	0.24
Errachidia 004	Winonaite	5.2760	2.2960	-0.448	0.19	-0.11	-0.21
Northwest Africa 13917	Winonaite	5.1070	2.1790	-0.477	0.02	-0.22	-0.23
Northwest Africa 3151	Brachinite	4.8600	2.4200	-0.107	-0.22	0.02	0.13
Elephant Moraine 90033	Aubrite	5.0260	2.6190	0.005	-0.06	0.22	0.25
Lewis Cliff 88714	EL6	5.0180	2.6180	0.009	-0.07	0.22	0.25
Northwest Africa 10637	Brachinite	5.2730	2.5260	-0.216	0.19	0.12	0.03
Norton County	Aubrite	5.0200	2.6200	0.01	-0.06	0.22	0.25
Northwest Africa 13917	Winonaite	5.2360	2.2320	-0.491	0.15	-0.17	-0.25
Old Homestead 003	Howardite	4.8800	2.3000	-0.238	-0.2	-0.1	0
Northwest Africa 13432	Winonaite	5.1960	2.1960	-0.506	0.11	-0.21	-0.26
Silistra	Achondrite-ung	5.3000	2.5000	-0.256	0.22	0.1	-0.01
Northwest Africa 10851	Winonaite	5.2420	2.2240	-0.502	0.16	-0.18	-0.26
Northwest Africa 5400	Achondrite-ung	4.8800	2.5250	-0.013	-0.2	0.12	0.23
Northwest Africa 6448	Winonaite	5.1340	2.1670	-0.503	0.05	-0.23	-0.26
Northwest Africa 6448	Winonaite	5.1550	2.1660	-0.515	0.07	-0.24	-0.27
Northwest Africa 7904	Brachinite	4.9990	2.6340	0.035	-0.09	0.23	0.28
Northwest Africa 10851	Winonaite	5.0780	2.1490	-0.492	-0.01	-0.25	-0.25
Northwest Africa 4537	Aubrite	5.0210	2.6500	0.039	-0.06	0.25	0.28
Northwest Africa 4741	Achondrite-ung	4.9900	2.6400	0.045	-0.09	0.24	0.29
Yamato 691	EH3	4.8300	2.4600	-0.052	-0.25	0.06	0.19
Northwest Africa 4929	Brachinite	5.3300	2.4900	-0.282	0.25	0.09	-0.04
Northwest Africa 7605	Brachinite	4.8220	2.3700	-0.137	-0.26	-0.03	0.1
Zakłodzie	Enst achon-ung	4.8600	2.5600	0.033	-0.22	0.16	0.27
Bustee	Aubrite	4.8300	2.5100	-0.002	-0.25	0.11	0.24
Northwest Africa 13432	Winonaite	5.3280	2.2720	-0.499	0.24	-0.13	-0.26
Lewis Cliff 87007	Aubrite	5.0900	2.6800	0.033	0.01	0.28	0.28
Peña Blanca Spring	Aubrite	5.0600	2.6800	0.049	-0.02	0.28	0.29
Northwest Africa 5400	Achondrite-ung	5.0610	2.6810	0.049	-0.02	0.28	0.29
Northwest Africa 6077	Achondrite-ung	5.1800	2.6670	-0.027	0.1	0.27	0.22
Northwest Africa 12543	Winonaite	5.1180	2.1200	-0.541	0.03	-0.28	-0.3
Northwest Africa 12951	Winonaite	5.0350	2.1190	-0.499	-0.05	-0.28	-0.26
Northwest Africa 15317	Angrite	4.8020	2.4570	-0.04	-0.28	0.06	0.2
Northwest Africa 10637	Brachinite	4.7940	2.4050	-0.088	-0.29	0	0.15
Elephant Moraine 83322	EH3	5.1760	2.6850	-0.007	0.09	0.28	0.24
Peña Blanca Spring	Aubrite	5.2670	2.6390	-0.1	0.18	0.24	0.14
Pesyanoe	Aubrite	4.7890	2.4570	-0.033	-0.3	0.06	0.21
Northwest Africa 5548	Achondrite-ung	5.0000	2.6900	0.09	-0.08	0.29	0.33
Allan Hills A78113	Aubrite	4.8100	2.5300	0.029	-0.27	0.13	0.27
Northwest Africa 7904	Brachinite	5.1660	2.6940	0.008	0.08	0.29	0.25
Elephant Moraine 90033	Aubrite	5.1800	2.6900	-0.004	0.1	0.29	0.24
Northwest Africa 6369	Iron, IAB complex	5.3900	2.3500	-0.453	0.31	-0.05	-0.21
Itqiy	EH7-an	4.8000	2.5300	0.034	-0.28	0.13	0.28
Northwest Africa 5548	Achondrite-ung	5.0800	2.7200	0.078	-0	0.32	0.32
Northwest Africa 14988	Winonaite	5.3900	2.2910	-0.512	0.31	-0.11	-0.27
Allan Hills A78113	Aubrite	5.2700	2.6700	-0.07	0.19	0.27	0.17
Northwest Africa 13673	Achondrite (brachinite-like)	5.3820	2.5350	-0.264	0.3	0.13	-0.02
South Oman	EH4/5	5.4100	2.4400	-0.373	0.33	0.04	-0.13
Northwest Africa 13673	Achondrite (brachinite-like)	5.3900	2.5450	-0.258	0.31	0.14	-0.02
LaPaz Icefield 03719	Aubrite-an	5.1600	2.7320	0.049	0.08	0.33	0.29
Peña Blanca Spring	Aubrite	5.1900	2.7250	0.026	0.11	0.32	0.27
Northwest Africa 8059	LL3.05	5.2770	2.6880	-0.056	0.19	0.29	0.19
LaPaz Icefield 02233	Aubrite	5.1600	2.7400	0.057	0.08	0.34	0.3
Allan Hills A78113	Aubrite	5.1170	2.7510	0.09	0.03	0.35	0.33
Northwest Africa 15317	Angrite	4.7340	2.3530	-0.109	-0.35	-0.05	0.13
Northwest Africa 8173	Enst achon	5.2650	2.7080	-0.03	0.18	0.31	0.21
Northwest Africa 10851	Winonaite	5.4380	2.3450	-0.483	0.35	-0.06	-0.24
Northwest Africa 7904	Brachinite	4.7810	2.2100	-0.276	-0.3	-0.19	-0.03
Al Huwaysah 010	Achondrite-ung	4.7300	2.3100	-0.15	-0.35	-0.09	0.09
Northwest Africa 5400	Achondrite-ung	5.2230	2.7410	0.025	0.14	0.34	0.27
Northwest Africa 13917	Winonaite	4.9590	2.0550	-0.524	-0.13	-0.35	-0.28
Grapevine Mesa	CBa	5.2830	2.0910	-0.656	0.2	-0.31	-0.41
Cumberland Falls	Aubrite	5.1800	2.7600	0.066	0.1	0.36	0.31
Queen Alexandra Range 94204	EH7	4.7130	2.4530	0.002	-0.37	0.05	0.24
Northwest Africa 14988	Winonaite	4.9590	2.0440	-0.535	-0.13	-0.36	-0.29
Qingzhen	EH3	4.7000	2.4200	-0.024	-0.38	0.02	0.22
Pecora Escarpment 91020	EL3	5.2700	2.7440	0.004	0.19	0.34	0.25
Allan Hills A78113	Aubrite	5.2200	2.7700	0.056	0.14	0.37	0.3
Bishopville	Aubrite	5.2900	2.7400	-0.011	0.21	0.34	0.23
Northwest Africa 8124	LL3	4.7180	2.5680	0.115	-0.37	0.17	0.36
Lewis Cliff 88180	EH5	5.2950	2.7460	-0.007	0.21	0.34	0.23
Northwest Africa 12951	Winonaite	4.8870	2.0490	-0.492	-0.2	-0.35	-0.25
Khor Temiki	Aubrite	5.2870	2.7520	0.003	0.2	0.35	0.24
Northwest Africa 11807	Winonaite	5.4870	2.3600	-0.493	0.4	-0.04	-0.25
Peña Blanca Spring	Aubrite	5.1600	2.8000	0.117	0.08	0.4	0.36
Tanezrouft 031	EL5	5.2590	2.7710	0.036	0.18	0.37	0.28
Peña Blanca Spring	Aubrite	5.1800	2.8000	0.106	0.1	0.4	0.35
Allan Hills 84007	Aubrite	5.2470	2.7790	0.051	0.16	0.38	0.29
Northwest Africa 8059	LL3.05	4.7020	2.2280	-0.217	-0.38	-0.17	0.02
Zag (b)	Winonaite	4.8400	2.0600	-0.457	-0.24	-0.34	-0.21
Ramlat Fasad 531	Winonaite	5.5060	2.4000	-0.463	0.42	-0	-0.22
LaPaz Icefield 02233	Aubrite	5.2500	2.7900	0.06	0.17	0.39	0.3
Larkman Nunatak 04316	Aubrite	5.2780	2.7780	0.033	0.19	0.38	0.28
Peña Blanca Spring	Aubrite	5.3200	2.7600	-0.006	0.24	0.36	0.24
Northwest Africa 10423	Eucrite-cm	4.6900	2.2300	-0.209	-0.39	-0.17	0.03
Northwest Africa 2904	Eucrite-pmict	4.7400	2.1300	-0.335	-0.34	-0.27	-0.09
Northwest Africa 14988	Winonaite	4.8560	2.0210	-0.504	-0.23	-0.38	-0.26
Northwest Africa 7388	Brachinite	5.4130	2.7050	-0.11	0.33	0.3	0.13
Shallowater	Aubrite	5.3400	2.7700	-0.007	0.26	0.37	0.24
Northwest Africa 13432	Winonaite	4.8550	2.0160	-0.509	-0.23	-0.39	-0.27
Dar al Gani 670	Martian (shergottite)	4.9500	2.8300	0.256	-0.13	0.43	0.5
Mount Egerton	Aubrite-an	5.3060	2.7920	0.033	0.22	0.39	0.27
Itqiy	EH7-an	5.2500	2.8200	0.09	0.17	0.42	0.33
Peña Blanca Spring	Aubrite	5.3300	2.7800	0.008	0.25	0.38	0.25
Northwest Africa 10497	Brachinite	4.6700	2.2200	-0.208	-0.41	-0.18	0.03
St. Mark's	EH5	5.2400	2.8300	0.105	0.16	0.43	0.35
Cumberland Falls	Aubrite	5.3900	2.7400	-0.063	0.31	0.34	0.18
Northwest Africa 12241	Martian (shergottite)	4.8750	2.8080	0.273	-0.21	0.41	0.51
Larkman Nunatak 06319	Martian (shergottite)	4.9200	2.8300	0.272	-0.16	0.43	0.51
Northwest Africa 7944	Martian (shergottite)	4.8920	2.8190	0.275	-0.19	0.42	0.52
Northwest Africa 6172	Achondrite-ung	5.3500	2.7800	-0.002	0.27	0.38	0.24
Ben Kesbes 002	Martian (shergottite)	4.9000	2.8260	0.278	-0.18	0.42	0.52
Northwest Africa 6152	Brachinite	4.6500	2.2400	-0.178	-0.43	-0.16	0.06
Ben Kesbes 002	Martian (shergottite)	4.8650	2.8100	0.28	-0.22	0.41	0.52
Northwest Africa 4518	Achondrite-ung	5.4700	2.6600	-0.184	0.39	0.26	0.06
Socorro	Martian (shergottite)	4.9140	2.8340	0.279	-0.17	0.43	0.52
Aubres	Aubrite	5.2920	2.8190	0.067	0.21	0.42	0.31
Blithfield	EL6	5.2900	2.8200	0.069	0.21	0.42	0.31
Northwest Africa 6152	Brachinite	4.6500	2.2300	-0.188	-0.43	-0.17	0.05
Northwest Africa 8679	Martian (shergottite)	4.9340	2.8450	0.279	-0.15	0.44	0.52
Adhi Kot	EH4	5.4100	2.7430	-0.07	0.33	0.34	0.17
Thiel Mountains 91714	EL5	5.2790	2.8330	0.088	0.2	0.43	0.33
Northwest Africa 7904	Brachinite	5.3480	2.7970	0.016	0.26	0.4	0.26
Socorro	Martian (shergottite)	4.8790	2.8360	0.299	-0.21	0.43	0.54
Northwest Africa 4222	Martian (shergottite)	4.9100	2.8500	0.297	-0.17	0.45	0.54
Northwest Africa 11807	Winonaite	5.5670	2.3950	-0.5	0.48	-0.01	-0.26
Northwest Africa 10153	Martian (nakhlite)	4.9630	2.8700	0.289	-0.12	0.47	0.53
Northwest Africa 8173	Enst achon	4.6000	2.4000	0.008	-0.48	-0	0.25
Parsa	EH3	5.3300	2.8200	0.048	0.25	0.42	0.29
Bustee	Aubrite	5.3490	2.8090	0.028	0.27	0.41	0.27
Northwest Africa 10720	Martian (nakhlite)	4.9030	2.8540	0.304	-0.18	0.45	0.55
Northwest Africa 8686	Martian (shergottite)	4.9840	2.8790	0.287	-0.1	0.48	0.53
Northwest Africa 10720	Martian (nakhlite)	4.8020	2.8000	0.303	-0.28	0.4	0.54
Ben Kesbes 002	Martian (shergottite)	4.8200	2.8140	0.308	-0.26	0.41	0.55
Elephant Moraine 87521	Lunar (basalt)	5.3900	2.7900	-0.013	0.31	0.39	0.23
Northwest Africa 10416	Martian	4.7400	2.7600	0.295	-0.34	0.36	0.54
Adhi Kot	EH4	5.4200	2.7700	-0.048	0.34	0.37	0.19
Northwest Africa 10593	Martian (shergottite)	4.7140	2.7360	0.285	-0.37	0.33	0.53
Northwest Africa 10593	Martian (shergottite)	4.6910	2.7100	0.271	-0.39	0.31	0.51

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