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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 |
---|---|---|---|---|
-0.19 | -3.89 | Not given | -3.791 |
Name | Class | δ18O | δ17O | Δ17O: calc | Δ δ18O | Δ δ17O | Δ Δ17O |
---|---|---|---|---|---|---|---|
Northwest Africa 6743 | CV3 | -0.1400 | -3.8600 | -3.787 | 0.05 | 0.03 | 0 |
Northwest Africa 11556 | C2-ung | -0.3190 | -3.7970 | -3.631 | -0.13 | 0.09 | 0.16 |
Northwest Africa 13400 | CL3.9 | -0.0210 | -4.0170 | -4.006 | 0.17 | -0.13 | -0.21 |
Northwest Africa 10275 | CV3 | -0.0010 | -4.0240 | -4.023 | 0.19 | -0.13 | -0.23 |
Northwest Africa 8331 | CV3 | -0.3600 | -3.7100 | -3.523 | -0.17 | 0.18 | 0.27 |
Northwest Africa 8186 | Achondrite-ung | -0.0690 | -4.1190 | -4.083 | 0.12 | -0.23 | -0.29 |
Northwest Africa 8186 | Achondrite-ung | -0.0220 | -4.1180 | -4.107 | 0.17 | -0.23 | -0.32 |
Hammadah al Hamra 337 | CK4 | -0.3690 | -3.6680 | -3.476 | -0.18 | 0.22 | 0.32 |
Northwest Africa 033 | CL4 | 0.1020 | -3.9110 | -3.964 | 0.29 | -0.02 | -0.17 |
Northwest Africa 12264 | Achondrite-ung | -0.0920 | -3.6050 | -3.557 | 0.1 | 0.29 | 0.23 |
Northwest Africa 4026 | CK4/5 | -0.1400 | -4.2900 | -4.217 | 0.05 | -0.4 | -0.43 |
Northwest Africa 10859 | Achondrite-ung | -0.5670 | -3.7060 | -3.411 | -0.38 | 0.18 | 0.38 |
Calama 031 | CO3 | -0.5440 | -4.1260 | -3.843 | -0.35 | -0.24 | -0.05 |
Northwest Africa 12264 | Achondrite-ung | -0.0280 | -3.4890 | -3.474 | 0.16 | 0.4 | 0.32 |
Northwest Africa 8186 | Achondrite-ung | -0.1760 | -4.3780 | -4.286 | 0.01 | -0.49 | -0.5 |
Northwest Africa 10503 | Achondrite-ung | -0.5550 | -3.5570 | -3.268 | -0.37 | 0.33 | 0.52 |