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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). |
δ18O | δ17O | Δ17O: given | Δ17O: linear | Comment |
---|---|---|---|---|
-1.7350 | -5.4870 | -4.5710 | -4.585 | |
-3.6230 | -6.7810 | -4.8680 | -4.897 | |
-9.7450 | -12.9960 | -7.8510 | -7.929 | Δ17O off by 0.078 |
Name | Class | δ18O | δ17O | Δ17O: calc | Δ δ18O | Δ δ17O | Δ Δ17O |
---|---|---|---|---|---|---|---|
Northwest Africa 7633 | CO3 | -5.0450 | -8.1300 | -5.507 | -0.01 | 0.29 | 0.3 |
Northwest Africa 13249 | C2-ung | -4.7590 | -8.6540 | -6.179 | 0.28 | -0.23 | -0.38 |
Northwest Africa 14179 | C3-ung | -4.7300 | -8.6220 | -6.162 | 0.3 | -0.2 | -0.36 |