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Oxygen isotope composition of CR and CH chondrites. Data for CH chondrites from Clayton and Mayeda (1999), CR chondrites from Clayton and Mayeda (1999) and Schrader et al. (2011). 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 |
---|---|---|---|---|
4.3140 | 0.6610 | -1.6170 | -1.582 | |
4.0210 | 0.4700 | -1.6530 | -1.621 | |
3.6370 | 0.2960 | -1.6250 | -1.595 | |
3.8400 | 0.3590 | -1.6680 | -1.638 | |
3.9390 | 0.3750 | -1.7050 | -1.673 | |
3.7610 | 0.3030 | -1.6830 | -1.653 |
Name | Class | δ18O | δ17O | Δ17O: calc | Δ δ18O | Δ δ17O | Δ Δ17O |
---|---|---|---|---|---|---|---|
Northwest Africa 7184 | CR2 | 4.1200 | 0.3300 | -1.812 | 0.2 | -0.08 | -0.19 |
Northwest Africa 4025 | CB | 3.7300 | 0.2200 | -1.72 | -0.19 | -0.19 | -0.09 |
Northwest Africa 12869 | Achondrite-prim | 3.6680 | 0.2250 | -1.682 | -0.25 | -0.19 | -0.06 |
Dhofar 125 | Acapulcoite | 3.5700 | 0.3600 | -1.496 | -0.35 | -0.05 | 0.13 |
Northwest Africa 4448 | Lodranite | 3.5510 | 0.5390 | -1.308 | -0.37 | 0.13 | 0.32 |
Northwest Africa 12869 | Achondrite-prim | 3.5840 | 0.1700 | -1.694 | -0.33 | -0.24 | -0.07 |
Tintigny | Eucrite-pmict | 3.7560 | 0.0000 | -1.953 | -0.16 | -0.41 | -0.33 |
Northwest Africa 10132 | Achondrite-ung | 3.7890 | 0.8570 | -1.113 | -0.13 | 0.45 | 0.51 |
Northwest Africa 7317 | CR6 | 3.5940 | 0.0640 | -1.805 | -0.32 | -0.35 | -0.18 |
Northwest Africa 10132 | Achondrite-ung | 3.8320 | 0.8930 | -1.1 | -0.09 | 0.48 | 0.53 |
Northwest Africa 8685 | Acapulcoite | 3.8410 | 0.8980 | -1.099 | -0.08 | 0.49 | 0.53 |