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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 |
---|---|---|---|---|
1.42 | -2.69 | Not given | -3.428 |
Name | Class | δ18O | δ17O | Δ17O: calc | Δ δ18O | Δ δ17O | Δ Δ17O |
---|---|---|---|---|---|---|---|
Northwest Africa 2570 | CV3 | 1.3780 | -2.6010 | -3.318 | -0.04 | 0.09 | 0.11 |
Northwest Africa 11556 | C2-ung | 1.4210 | -2.7890 | -3.528 | 0 | -0.1 | -0.1 |
Northwest Africa 5247 | CO3 | 1.5400 | -2.8900 | -3.691 | 0.12 | -0.2 | -0.26 |
Northwest Africa 6357 | CV3 | 1.5300 | -2.9000 | -3.696 | 0.11 | -0.21 | -0.27 |
Northwest Africa 12722 | CK3 | 1.6100 | -2.4600 | -3.297 | 0.19 | 0.23 | 0.13 |
Khawr al Fazra 005 | CV3 | 1.7700 | -2.8900 | -3.81 | 0.35 | -0.2 | -0.38 |
Northwest Africa 6361 | CV3 | 1.8390 | -2.8920 | -3.848 | 0.42 | -0.2 | -0.42 |
Northwest Africa 3304 | CV3 | 1.3900 | -3.1600 | -3.883 | -0.03 | -0.47 | -0.45 |
Northwest Africa 12925 | CK5 | 1.5840 | -3.1410 | -3.965 | 0.16 | -0.45 | -0.54 |