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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 |
---|---|---|---|---|
1.4210 | -2.7890 | -3.5390 | -3.528 | |
-0.3190 | -3.7970 | -3.6290 | -3.631 |
Name | Class | δ18O | δ17O | Δ17O: calc | Δ δ18O | Δ δ17O | Δ Δ17O |
---|---|---|---|---|---|---|---|
Northwest Africa 4372 | CK4 | 0.4000 | -3.2600 | -3.468 | -0.15 | 0.03 | 0.11 |
Northwest Africa 7921 | CV3 | 0.4530 | -3.4510 | -3.687 | -0.1 | -0.16 | -0.11 |
Northwest Africa 7821 | C2-ung | 0.3800 | -3.3700 | -3.568 | -0.17 | -0.08 | 0.01 |
Northwest Africa 3004 | CV3 | 0.8000 | -3.2900 | -3.706 | 0.25 | 0 | -0.13 |
Northwest Africa 13456 | C2 | 0.9130 | -3.1710 | -3.646 | 0.36 | 0.12 | -0.07 |
Northwest Africa 3081 | CK5/6 | 0.6400 | -3.6900 | -4.023 | 0.09 | -0.4 | -0.44 |
Northwest Africa 12264 | Achondrite-ung | 0.4670 | -2.8860 | -3.129 | -0.08 | 0.41 | 0.45 |
Northwest Africa 11357 | CV3 | 0.9260 | -3.5130 | -3.995 | 0.38 | -0.22 | -0.42 |
Khawr al Fazra 006 | CK6 | 0.9800 | -3.4600 | -3.97 | 0.43 | -0.17 | -0.39 |
Northwest Africa 12925 | CK5 | 1.0050 | -3.4150 | -3.938 | 0.45 | -0.12 | -0.36 |
Northwest Africa 11707 | CK4 | 0.9300 | -3.5800 | -4.064 | 0.38 | -0.29 | -0.48 |
Northwest Africa 10276 | CK3 | 0.8950 | -2.9620 | -3.427 | 0.34 | 0.33 | 0.15 |
Jiddat al Harasis 619 | CO3 | 1.0000 | -3.1300 | -3.65 | 0.45 | 0.16 | -0.07 |
Northwest Africa 8331 | CV3 | 0.1100 | -3.4800 | -3.537 | -0.44 | -0.19 | 0.04 |