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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 |
---|---|---|---|---|
-4.8860 | -7.8000 | -5.2200 | -5.259 | |
-5.5970 | -8.7490 | -5.7940 | -5.839 |
Name | Class | δ18O | δ17O | Δ17O: calc | Δ δ18O | Δ δ17O | Δ Δ17O |
---|---|---|---|---|---|---|---|
Northwest Africa 7633 | CO3 | -5.0450 | -8.1300 | -5.507 | 0.2 | 0.14 | 0.04 |
Northwest Africa 13455 | CO3-an | -5.5330 | -8.5330 | -5.656 | -0.29 | -0.26 | -0.11 |