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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 |
---|---|---|---|---|
4.7300 | -0.9000 | -3.3970 | -3.36 | |
3.1360 | -1.7150 | -3.3710 | -3.346 | |
4.2460 | -1.8820 | -4.1240 | -4.09 | |
9.1170 | 2.8530 | -1.9610 | -1.888 | Δ17O off by 0.073 |
9.2090 | 3.0870 | -1.7750 | -1.702 | Δ17O off by 0.073 |
Name | Class | δ18O | δ17O | Δ17O: calc | Δ δ18O | Δ δ17O | Δ Δ17O |
---|---|---|---|---|---|---|---|
Northwest Africa 3340 | CM2-an | 6.2240 | 0.4940 | -2.742 | 0.14 | 0.21 | 0.13 |
Northwest Africa 3340 | CM2-an | 6.2240 | 0.4940 | -2.742 | 0.14 | 0.21 | 0.13 |
Moapa Valley | CM1 | 6.0800 | 0.6800 | -2.482 | -0.01 | 0.39 | 0.4 |