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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 |
---|---|---|---|---|
2.1520 | -4.1480 | -5.2840 | -5.267 | |
-0.7960 | -6.4120 | -5.9910 | -5.998 | |
-3.1510 | -8.0120 | -6.3480 | -6.373 | |
0.7500 | -4.4810 | -4.8770 | -4.871 | |
-1.8800 | -6.9450 | -5.9530 | -5.967 |
Name | Class | δ18O | δ17O | Δ17O: calc | Δ δ18O | Δ δ17O | Δ Δ17O |
---|---|---|---|---|---|---|---|
Northwest Africa 13969 | C2-ung | -0.6820 | -5.7610 | -5.406 | -0.1 | 0.24 | 0.29 |
Northwest Africa 8781 | C-ung | -0.8950 | -5.8970 | -5.432 | -0.31 | 0.1 | 0.26 |