Oxygen Isotope Plots

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Meteoritical Bulletin: Oxygen Isotope Plots

Oxygen isotope composition of CK chondrites. All data from Greenwood et al. (2010). Field of CO3s based on the data of Greenwood and Franchi (2004). 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., 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)
Greenwood R. C. and Franchi I. A. (2004) Alteration and metamorphism of CO3 chondrites: Evidence from oxygen and carbon isotopes. Meteorit. Planet. Sci. 39, 1823-1838 (link)
Greenwood R.C., Franchi I. A., Kearsley A. T. and Alard O. (2010) The relationship between CK and CV chondrites. Geochim. Cosmochim. Acta 74, 1684-1705 (link)

Data summary:

δ¹⁸O	δ¹⁷O	Δ¹⁷O: given	Δ¹⁷O: linear	Comment
-2.7480	-6.3140	-4.8690	-4.885
-3.1510	-6.4320	-4.7750	-4.793

Nearest neighbors in MBDB (within 0.5 permil):

Name	Class	δ¹⁸O	δ¹⁷O	Δ¹⁷O: calc	Δ δ¹⁸O	Δ δ¹⁷O	Δ Δ¹⁷O
Northwest Africa 1924	CV3	-3.0100	-6.4600	-4.895	-0.06	-0.09	-0.06
Oued Bourdim 001	Pallasite, PES	-2.9800	-6.4800	-4.93	-0.03	-0.11	-0.09
Northwest Africa 5956	CK3	-3.1510	-6.4320	-4.793	-0.2	-0.06	0.05
Northwest Africa 5956	CK3	-2.7480	-6.3140	-4.885	0.2	0.06	-0.05
Northwest Africa 2044	CV3	-2.7100	-6.3600	-4.951	0.24	0.01	-0.11
Northwest Africa 11358	CO3.6	-2.7360	-6.1730	-4.75	0.21	0.2	0.09
Northwest Africa 6156	CO3.3	-3.2200	-6.2000	-4.526	-0.27	0.17	0.31
Karavannoe	Pallasite, PES	-2.6420	-6.2500	-4.876	0.31	0.12	-0.04
Jiddat al Harasis 084	CO3	-2.6700	-6.1600	-4.772	0.28	0.21	0.07
Catalina 008	CO3	-3.3000	-6.5500	-4.834	-0.35	-0.18	0.01
Northwest Africa 10276	CK3	-3.2650	-6.6300	-4.932	-0.32	-0.26	-0.09
Northwest Africa 176	Iron, ungrouped	-2.5000	-6.5000	-5.2	0.45	-0.13	-0.36