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
5.3300	2.4900	-0.3000	-0.282

Nearest neighbors in MBDB (within 0.5 permil):

Name	Class	δ¹⁸O	δ¹⁷O	Δ¹⁷O: calc	Δ δ¹⁸O	Δ δ¹⁷O	Δ Δ¹⁷O
Silistra	Achondrite-ung	5.3000	2.5000	-0.256	-0.03	0.01	0.03
Thiel Mountains 07014	Eucrite	5.2700	2.5100	-0.23	-0.06	0.02	0.05
Northwest Africa 10637	Brachinite	5.2730	2.5260	-0.216	-0.06	0.04	0.07
South Oman	EH4/5	5.4100	2.4400	-0.373	0.08	-0.05	-0.09
Northwest Africa 6023	Brachinite-an	5.2260	2.4910	-0.227	-0.1	0	0.06
Northwest Africa 6369	Iron, IAB complex	5.3900	2.3500	-0.453	0.06	-0.14	-0.17
Northwest Africa 4042	Achondrite-ung	5.1780	2.5390	-0.154	-0.15	0.05	0.13
Peña Blanca Spring	Aubrite	5.2670	2.6390	-0.1	-0.06	0.15	0.18
Northwest Africa 6023	Brachinite-an	5.1620	2.4450	-0.239	-0.17	-0.05	0.04
Northwest Africa 10851	Winonaite	5.4380	2.3450	-0.483	0.11	-0.15	-0.2
Allan Hills A78113	Aubrite	5.2700	2.6700	-0.07	-0.06	0.18	0.21
Ramlat Fasad 531	Winonaite	5.5060	2.4000	-0.463	0.18	-0.09	-0.18
Errachidia 004	Winonaite	5.2760	2.2960	-0.448	-0.05	-0.19	-0.17
Northwest Africa 11807	Winonaite	5.4870	2.3600	-0.493	0.16	-0.13	-0.21
Northwest Africa 8059	LL3.05	5.2770	2.6880	-0.056	-0.05	0.2	0.23
Kota-Kota	EH3	5.1200	2.5200	-0.142	-0.21	0.03	0.14
Northwest Africa 12532	Brachinite	5.1190	2.4560	-0.206	-0.21	-0.03	0.08
Northwest Africa 13432	Winonaite	5.3280	2.2720	-0.499	-0	-0.22	-0.22
Northwest Africa 4518	Achondrite-ung	5.4700	2.6600	-0.184	0.14	0.17	0.1
Northwest Africa 8173	Enst achon	5.2650	2.7080	-0.03	-0.07	0.22	0.25
Northwest Africa 2251	Howardite	5.2000	2.3000	-0.404	-0.13	-0.19	-0.12
Northwest Africa 7388	Brachinite	5.4130	2.7050	-0.11	0.08	0.22	0.17
Northwest Africa 6077	Achondrite-ung	5.1800	2.6670	-0.027	-0.15	0.18	0.26
Northwest Africa 6023	Brachinite-an	5.1100	2.4020	-0.255	-0.22	-0.09	0.03
Elephant Moraine 83322	EH3	5.1760	2.6850	-0.007	-0.15	0.2	0.28
Elephant Moraine 90033	Aubrite	5.1800	2.6900	-0.004	-0.15	0.2	0.28
Bishopville	Aubrite	5.2900	2.7400	-0.011	-0.04	0.25	0.27
Dhofar 1983	Lunar (feldsp. breccia)	5.1000	2.6000	-0.052	-0.23	0.11	0.23
Northwest Africa 11807	Winonaite	5.5670	2.3950	-0.5	0.24	-0.1	-0.22
Dhofar 1441	Achondrite-ung	5.5080	2.6750	-0.189	0.18	0.19	0.09
Cumberland Falls	Aubrite	5.3900	2.7400	-0.063	0.06	0.25	0.22
Lewis Cliff 88180	EH5	5.2950	2.7460	-0.007	-0.04	0.26	0.27
Pecora Escarpment 91020	EL3	5.2700	2.7440	0.004	-0.06	0.25	0.29
Northwest Africa 7904	Brachinite	5.1660	2.6940	0.008	-0.16	0.2	0.29
Bishopville	Aubrite	5.0850	2.5870	-0.057	-0.25	0.1	0.22
Adhi Kot	EH4	5.4100	2.7430	-0.07	0.08	0.25	0.21
Khor Temiki	Aubrite	5.2870	2.7520	0.003	-0.04	0.26	0.28
Silistra	Achondrite-ung	5.5500	2.6400	-0.246	0.22	0.15	0.04
MacAlpine Hills 88104	Lunar (anorth)	5.5000	2.7000	-0.16	0.17	0.21	0.12
Peña Blanca Spring	Aubrite	5.3200	2.7600	-0.006	-0.01	0.27	0.28
Northwest Africa 5400	Achondrite-ung	5.2230	2.7410	0.025	-0.11	0.25	0.31
Peña Blanca Spring	Aubrite	5.1900	2.7250	0.026	-0.14	0.24	0.31
Northwest Africa 13917	Winonaite	5.2360	2.2320	-0.491	-0.09	-0.26	-0.21
Northwest Africa 10851	Winonaite	5.2420	2.2240	-0.502	-0.09	-0.27	-0.22
Shallowater	Aubrite	5.3400	2.7700	-0.007	0.01	0.28	0.27
Northwest Africa 11729	Eucrite-an	5.5400	2.6800	-0.201	0.21	0.19	0.08
Tanezrouft 031	EL5	5.2590	2.7710	0.036	-0.07	0.28	0.32
Peña Blanca Spring	Aubrite	5.3300	2.7800	0.008	0	0.29	0.29
Northwest Africa 6172	Achondrite-ung	5.3500	2.7800	-0.002	0.02	0.29	0.28
Northwest Africa 12543	Winonaite	5.5830	2.3450	-0.558	0.25	-0.15	-0.28
Larkman Nunatak 04316	Aubrite	5.2780	2.7780	0.033	-0.05	0.29	0.32
Adhi Kot	EH4	5.4200	2.7700	-0.048	0.09	0.28	0.23
Northwest Africa 10637	Brachinite	5.0480	2.4020	-0.223	-0.28	-0.09	0.06
LaPaz Icefield 03719	Aubrite-an	5.1600	2.7320	0.049	-0.17	0.24	0.33
Northwest Africa 1457	Winonaite	5.1000	2.3000	-0.352	-0.23	-0.19	-0.07
Sahara 97096	EH3	5.4450	2.7660	-0.065	0.12	0.28	0.22
Allan Hills 84007	Aubrite	5.2470	2.7790	0.051	-0.08	0.29	0.33
Allan Hills A78113	Aubrite	5.2200	2.7700	0.056	-0.11	0.28	0.34
LaPaz Icefield 02233	Aubrite	5.1600	2.7400	0.057	-0.17	0.25	0.34
Mount Egerton	Aubrite-an	5.3060	2.7920	0.033	-0.02	0.3	0.31
Elephant Moraine 87521	Lunar (basalt)	5.3900	2.7900	-0.013	0.06	0.3	0.27
Lewis Cliff 87007	Aubrite	5.0900	2.6800	0.033	-0.24	0.19	0.31
Northwest Africa 7904	Brachinite	5.3480	2.7970	0.016	0.02	0.31	0.3
Cumberland Falls	Aubrite	5.1800	2.7600	0.066	-0.15	0.27	0.35
LaPaz Icefield 02233	Aubrite	5.2500	2.7900	0.06	-0.08	0.3	0.34
Bustee	Aubrite	5.3490	2.8090	0.028	0.02	0.32	0.31
Northwest Africa 13432	Winonaite	5.1960	2.1960	-0.506	-0.13	-0.29	-0.22
Elephant Moraine 92063	EL6	5.4340	2.7960	-0.03	0.1	0.31	0.25
MacAlpine Hills 88136	EL3	5.0010	2.5100	-0.091	-0.33	0.02	0.19
Northwest Africa 12532	Brachinite	5.5730	2.7130	-0.185	0.24	0.22	0.1
Northwest Africa 5400	Achondrite-ung	5.0610	2.6810	0.049	-0.27	0.19	0.33
Parsa	EH3	5.3300	2.8200	0.048	0	0.33	0.33
Peña Blanca Spring	Aubrite	5.0600	2.6800	0.049	-0.27	0.19	0.33
Elephant Moraine 90033	Aubrite	5.0260	2.6190	0.005	-0.3	0.13	0.29
Aubres	Aubrite	5.2920	2.8190	0.067	-0.04	0.33	0.35
Old Homestead 003	Howardite	5.0200	2.3700	-0.24	-0.31	-0.12	0.04
Pesyanoe	Aubrite	5.3700	2.8200	0.028	0.04	0.33	0.31
Blithfield	EL6	5.2900	2.8200	0.069	-0.04	0.33	0.35
Grapevine Mesa	CBa	4.9980	2.4560	-0.143	-0.33	-0.03	0.14
South Oman	EH4/5	5.6330	2.6320	-0.297	0.3	0.14	-0.02
Norton County	Aubrite	5.0200	2.6200	0.01	-0.31	0.13	0.29
Allan Hills A78113	Aubrite	5.1170	2.7510	0.09	-0.21	0.26	0.37
Northwest Africa 8173	Enst achon	5.0130	2.6050	-0.002	-0.32	0.12	0.28
Lewis Cliff 88714	EL6	5.0180	2.6180	0.009	-0.31	0.13	0.29
Itqiy	EH7-an	5.2500	2.8200	0.09	-0.08	0.33	0.37
Northwest Africa 5548	Achondrite-ung	5.0800	2.7200	0.078	-0.25	0.23	0.36
Norton County	Aubrite	5.3780	2.8270	0.03	0.05	0.34	0.31
LaPaz Icefield 02205	Lunar (basalt)	5.6000	2.7000	-0.212	0.27	0.21	0.07
Peña Blanca Spring	Aubrite	5.1800	2.8000	0.106	-0.15	0.31	0.39
Happy Canyon	EL6/7	4.9860	2.5260	-0.067	-0.34	0.04	0.21
Thiel Mountains 91714	EL5	5.2790	2.8330	0.088	-0.05	0.34	0.37
Northwest Africa 4537	Aubrite	5.0210	2.6500	0.039	-0.31	0.16	0.32
Jiddat al Harasis 556	Howardite	4.9800	2.4800	-0.11	-0.35	-0.01	0.17
St. Mark's	EH5	5.2400	2.8300	0.105	-0.09	0.34	0.39
Peña Blanca Spring	Aubrite	5.1600	2.8000	0.117	-0.17	0.31	0.4
Northwest Africa 5885	Aubrite	5.3350	2.8490	0.075	0	0.36	0.36
Norton County	Aubrite	4.9790	2.5720	-0.017	-0.35	0.08	0.26
Northwest Africa 7904	Brachinite	4.9990	2.6340	0.035	-0.33	0.14	0.32
Northwest Africa 6448	Winonaite	5.1550	2.1660	-0.515	-0.18	-0.32	-0.23
Allan Hills A78113	Aubrite	5.3500	2.8600	0.078	0.02	0.37	0.36
Northwest Africa 4741	Achondrite-ung	4.9900	2.6400	0.045	-0.34	0.15	0.33
Mayo Belwa	Aubrite	5.4800	2.8300	-0.02	0.15	0.34	0.26
Northwest Africa 6448	Winonaite	5.1340	2.1670	-0.503	-0.2	-0.32	-0.22
Khor Temiki	Aubrite	5.3600	2.8700	0.083	0.03	0.38	0.36
Mayo Belwa	Aubrite	4.9530	2.5470	-0.029	-0.38	0.06	0.25
Northwest Africa 13917	Winonaite	5.1070	2.1790	-0.477	-0.22	-0.31	-0.2
Yilmia	EL6	5.4720	2.8470	0.002	0.14	0.36	0.28
Northwest Africa 5548	Achondrite-ung	5.0000	2.6900	0.09	-0.33	0.2	0.37
Qingzhen	EH3	5.5200	2.8260	-0.044	0.19	0.34	0.24
Abar al' Uj 012	Lunar	5.4600	2.8600	0.021	0.13	0.37	0.3
Allan Hills A81021	EL6	5.4970	2.8450	-0.013	0.17	0.36	0.27
Grapevine Mesa	CBa	5.2830	2.0910	-0.656	-0.05	-0.4	-0.37
Northwest Africa 10602	Eucrite-melt breccia	4.9520	2.3490	-0.226	-0.38	-0.14	0.06
Aubres	Aubrite	5.4660	2.8710	0.029	0.14	0.38	0.31
Pesyanoe	Aubrite	5.4590	2.8740	0.035	0.13	0.38	0.32
Northwest Africa 6065	Achondrite-ung	5.5580	2.8300	-0.06	0.23	0.34	0.22
Zakłodzie	Enst achon-ung	5.3500	2.9000	0.118	0.02	0.41	0.4
Ilafegh 009	EL7	5.3790	2.9060	0.109	0.05	0.42	0.39
Northwest Africa 13304	Aubrite	5.5110	2.8680	0.002	0.18	0.38	0.28
Northwest Africa 6424	Achondrite-ung	5.4600	2.8900	0.051	0.13	0.4	0.33
Dar al Gani 1037	Martian (shergottite)	5.2900	2.9100	0.159	-0.04	0.42	0.44
Northwest Africa 10851	Winonaite	5.0780	2.1490	-0.492	-0.25	-0.34	-0.21
Northwest Africa 12543	Winonaite	5.1180	2.1200	-0.541	-0.21	-0.37	-0.26
Northwest Africa 11807	Winonaite	5.7580	2.4770	-0.517	0.43	-0.01	-0.24
Ilafegh 009	EL7	5.5100	2.8800	0.015	0.18	0.39	0.3
Allan Hills 88046	EH3	4.9050	2.4200	-0.131	-0.43	-0.07	0.15
Northwest Africa 2828	EL-melt rock	5.5000	2.8900	0.03	0.17	0.4	0.31
Northwest Africa 11729	Eucrite-an	4.9340	2.3010	-0.265	-0.4	-0.19	0.02
Northwest Africa 12532	Brachinite	4.9080	2.3450	-0.207	-0.42	-0.15	0.07
Northwest Africa 5400	Achondrite-ung	4.8800	2.5250	-0.013	-0.45	0.03	0.27
Khor Temiki	Aubrite	5.5180	2.9010	0.032	0.19	0.41	0.31
Northwest Africa 5885	Aubrite	5.5850	2.8750	-0.029	0.26	0.39	0.25
El Médano 395	Brachinite	4.8970	2.3290	-0.217	-0.43	-0.16	0.06
Dhofar 622	H4-an	5.1500	2.9200	0.242	-0.18	0.43	0.52
Northwest Africa 6065	Achondrite-ung	5.5980	2.8730	-0.038	0.27	0.38	0.24
Northwest Africa 2828	EL-melt rock	5.5600	2.9000	0.009	0.23	0.41	0.29
Northwest Africa 12951	Winonaite	5.0350	2.1190	-0.499	-0.3	-0.37	-0.22
Northwest Africa 3151	Brachinite	4.8600	2.4200	-0.107	-0.47	-0.07	0.17
Zakłodzie	Enst achon-ung	4.8600	2.5600	0.033	-0.47	0.07	0.31
Northwest Africa 12241	Martian (shergottite)	5.0920	2.9070	0.259	-0.24	0.42	0.54
Northwest Africa 7388	Brachinite	5.6350	2.8620	-0.068	0.31	0.37	0.21
Grein 002	EL4/5	5.5740	2.9060	0.008	0.24	0.42	0.29
Lewis Cliff 87119	EL6	5.5260	2.9310	0.057	0.2	0.44	0.34
Mayo Belwa	Aubrite	5.5470	2.9230	0.039	0.22	0.43	0.32
Northwest Africa 6572	Achondrite-ung	5.6190	2.8810	-0.041	0.29	0.39	0.24
Northwest Africa 6077	Achondrite-ung	5.5360	2.9320	0.053	0.21	0.44	0.33
Indarch	EH4	5.4600	2.9600	0.121	0.13	0.47	0.4
Old Homestead 003	Howardite	4.8800	2.3000	-0.238	-0.45	-0.19	0.04
Pillistfer	EL6	5.5800	2.9200	0.018	0.25	0.43	0.3

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