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
0.9800	-1.7800	Not given	-2.29
0.5300	-2.1900	Not given	-2.466

Nearest neighbors in MBDB (within 0.5 permil):

Name	Class	δ¹⁸O	δ¹⁷O	Δ¹⁷O: calc	Δ δ¹⁸O	Δ δ¹⁷O	Δ Δ¹⁷O
Sierra Gorda 013	CBa	0.6500	-1.8890	-2.227	-0.11	0.1	0.15
Sierra Gorda 013	CBa	0.5900	-1.9000	-2.207	-0.17	0.09	0.17
Northwest Africa 7020	CR2	1.0260	-2.1010	-2.635	0.27	-0.12	-0.26
Northwest Africa 11961	C3-ung	1.1120	-2.1010	-2.679	0.36	-0.12	-0.3
Northwest Africa 12438	Achondrite-ung	0.5920	-1.5310	-1.839	-0.16	0.45	0.54
Northwest Africa 5492	Chondrite-ung	0.2900	-2.1300	-2.281	-0.47	-0.15	0.1