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Oxygen isotope composition of CI and CM chondrites. Data for CMs and CIs from Clayton and Mayeda (1999); CVs and CKs from Greenwood et al. (2010); COs from Greenwood and Franchi (2004). 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). |
δ18O | δ17O | Δ17O: given | Δ17O: linear | Comment |
---|---|---|---|---|
-5.8490 | -8.8510 | -5.7630 | -5.81 | |
-6.9060 | -9.8360 | -6.1900 | -6.245 | Δ17O off by 0.055 |
Name | Class | δ18O | δ17O | Δ17O: calc | Δ δ18O | Δ δ17O | Δ Δ17O |
---|---|---|---|---|---|---|---|
Northwest Africa 5377 | C3-ung | -6.4670 | -9.4810 | -6.118 | -0.09 | -0.14 | -0.09 |
Northwest Africa 5377 | C3-ung | -6.1550 | -9.2740 | -6.073 | 0.22 | 0.07 | -0.05 |
Northwest Africa 8771 | CO3 | -5.8880 | -9.4270 | -6.365 | 0.49 | -0.08 | -0.34 |