![]() |
||
|
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 |
---|---|---|---|---|
12.6100 | 4.2600 | -1.3300 | -2.297 | Δ17O off by 0.967 |
Name | Class | δ18O | δ17O | Δ17O: calc | Δ δ18O | Δ δ17O | Δ Δ17O |
---|---|---|---|---|---|---|---|
Northwest Africa 12563 | CM2-an | 12.6100 | 4.2600 | -2.297 | 0 | 0 | 0 |
Northwest Africa 8534 | CM1/2 | 12.5710 | 4.3630 | -2.174 | -0.04 | 0.1 | 0.12 |
Northwest Africa 8534 | CM1/2 | 12.4400 | 4.4500 | -2.019 | -0.17 | 0.19 | 0.28 |
Northwest Africa 8534 | CM1/2 | 12.3430 | 4.2070 | -2.211 | -0.27 | -0.05 | 0.09 |
Aguas Zarcas | CM2 | 12.6690 | 3.9590 | -2.629 | 0.06 | -0.3 | -0.33 |
Aguas Zarcas | CM2 | 12.2490 | 3.9950 | -2.374 | -0.36 | -0.27 | -0.08 |
Northwest Africa 8534 | CM1/2 | 12.7980 | 4.7220 | -1.933 | 0.19 | 0.46 | 0.36 |