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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 |
---|---|---|---|---|
0.9800 | -1.7800 | Not given | -2.29 | |
0.5300 | -2.1900 | Not given | -2.466 |
Name | Class | δ18O | δ17O | Δ17O: calc | Δ δ18O | Δ δ17O | Δ Δ17O |
---|---|---|---|---|---|---|---|
Sierra Gorda 013 | CBa | 0.6500 | -1.8890 | -2.227 | -0.11 | 0.1 | 0.15 |
Sierra Gorda 013 | CBa | 0.5900 | -1.9000 | -2.207 | -0.17 | 0.09 | 0.17 |
Northwest Africa 7020 | CR2 | 1.0260 | -2.1010 | -2.635 | 0.27 | -0.12 | -0.26 |
Northwest Africa 13170 | Achondrite-ung | 0.9700 | -2.2800 | -2.784 | 0.22 | -0.3 | -0.41 |
Northwest Africa 11961 | C3-ung | 1.1120 | -2.1010 | -2.679 | 0.36 | -0.12 | -0.3 |
Northwest Africa 12438 | Achondrite-ung | 0.5920 | -1.5310 | -1.839 | -0.16 | 0.45 | 0.54 |
Northwest Africa 5492 | Chondrite-ung | 0.2900 | -2.1300 | -2.281 | -0.47 | -0.15 | 0.1 |