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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 |
---|---|---|---|---|
21.9710 | 11.4230 | -0.1780 | -0.002 | Δ17O off by 0.176 |
17.9240 | 9.1240 | -0.3400 | -0.196 | Δ17O off by 0.144 |
15.9430 | 7.9750 | -0.4430 | -0.315 | Δ17O off by 0.128 |
20.8420 | 10.6130 | -0.3910 | -0.225 | Δ17O off by 0.166 |
16.4340 | 8.2770 | -0.4010 | -0.269 | Δ17O off by 0.132 |
17.0340 | 8.8590 | -0.1350 | 0.001 | Δ17O off by 0.136 |
20.6070 | 10.7790 | -0.1020 | 0.063 | Δ17O off by 0.165 |
Name | Class | δ18O | δ17O | Δ17O: calc | Δ δ18O | Δ δ17O | Δ Δ17O |
---|---|---|---|---|---|---|---|
Tagish Lake | C2-ung | 19.0000 | 9.2000 | -0.68 | 0.32 | -0.38 | -0.55 |