Oxygen Isotope Plots

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Meteoritical Bulletin: Oxygen Isotope Plots

Oxygen isotope composition of CR and CH chondrites. Data for CH chondrites from Clayton and Mayeda (1999), CR chondrites from Clayton and Mayeda (1999) and Schrader et al. (2011). 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)
Schrader D.L. Franchi I.A. Connolly H.C.Jr., Greenwood R.C., Lauretta D.S. and Gibson J.M. (2011) The formation and alteration of the Renazzo-like carbonaceous chondrites I: Implications of bulk-oxygen isotopic composition. Geochim. Cosmochim. Acta 75, 308-325 (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
3.5940	0.0640	-1.8270	-1.805
3.5070	0.0570	-1.7880	-1.767

Nearest neighbors in MBDB (within 0.5 permil):

Name	Class	δ¹⁸O	δ¹⁷O	Δ¹⁷O: calc	Δ δ¹⁸O	Δ δ¹⁷O	Δ Δ¹⁷O
Northwest Africa 2994	Chondrite-ung	3.3550	0.0780	-1.667	-0.2	0.02	0.12
Tintigny	Eucrite-pmict	3.7560	0.0000	-1.953	0.21	-0.06	-0.17
Northwest Africa 2994	Chondrite-ung	3.3310	-0.0070	-1.739	-0.22	-0.07	0.05
Northwest Africa 4025	CB	3.7300	0.2200	-1.72	0.18	0.16	0.07
Northwest Africa 12455	CR7	3.6370	0.2960	-1.595	0.09	0.24	0.19
Northwest Africa 2400	Achondrite-ung	3.2700	0.1500	-1.55	-0.28	0.09	0.24
Dhofar 125	Acapulcoite	3.5700	0.3600	-1.496	0.02	0.3	0.29
Northwest Africa 3250	Achondrite-prim	3.2500	-0.0300	-1.72	-0.3	-0.09	0.07
Northwest Africa 5351	Eucrite-mmict	3.7000	-0.2190	-2.143	0.15	-0.28	-0.36
Northwest Africa 12455	CR7	3.7610	0.3030	-1.653	0.21	0.24	0.13
Northwest Africa 6921	CR6	3.1810	-0.0650	-1.719	-0.37	-0.13	0.07
Northwest Africa 8545	Achondrite-ung	3.1590	0.1200	-1.523	-0.39	0.06	0.26
Northwest Africa 4448	Lodranite	3.4130	0.4420	-1.333	-0.14	0.38	0.45
Northwest Africa 12455	CR7	3.8400	0.3590	-1.638	0.29	0.3	0.15
Northwest Africa 4448	Lodranite	3.5510	0.5390	-1.308	0	0.48	0.48
Northwest Africa 12455	CR7	3.9390	0.3750	-1.673	0.39	0.31	0.11