Table 4.
Chondrule | n | Type | δ18O | Unc. | δ17O | Unc. | ∆17O | Unc. | Mg#a |
---|---|---|---|---|---|---|---|---|---|
QUE 97008 | |||||||||
c51 | 7 | II-PO | 3.89 | 0.34 | 2.21 | 0.25 | 0.18 | 0.16 | 87 |
c61 | 7 | I-POP | 3.96 | 0.47 | 2.21 | 0.27 | 0.15 | 0.12 | 95 |
c143 | 8 | II-PO | 4.83 | 0.36 | 2.75 | 0.21 | 0.24 | 0.09 | 84 |
c150 | 8 | II-POP | 4.54 | 0.40 | 2.34 | 0.35 | −0.02 | 0.32 | 87 |
MET 00452 | |||||||||
c19 | 7 | II-PO | 4.30 | 0.35 | 2.14 | 0.28 | −0.10 | 0.23 | 83 |
c111 | 8 | II-POP | 4.04 | 0.33 | 2.27 | 0.20 | 0.17 | 0.14 | 90 |
Semarkona | |||||||||
c34 | 8 | II-POP | 4.48 | 0.33 | 2.45 | 0.24 | 0.12 | 0.19 | 82 |
c47 | 8 | II-PO | 4.45 | 0.35 | 2.26 | 0.29 | −0.05 | 0.23 | 86 |
NWA 8649 | |||||||||
c17 | 8 | I-PP | 3.45 | 0.36 | 1.36 | 0.32 | −0.44 | 0.23 | 93 |
c87 | 6 | II-PO | 3.62 | 0.40 | 1.72 | 0.25 | −0.16 | 0.10 | 90 |
NWA 8276 | |||||||||
c7 | 6 | II-PO | 5.64 | 0.47 | 3.29 | 0.29 | 0.36 | 0.17 | 85 |
c69 | 6 | I-POP | 0.49 | 0.15 | 97 | ||||
c87 | 8 | II-PO | 3.59 | 0.33 | 1.54 | 0.22 | −0.33 | 0.13 | 83 |
c88 | 8 | II-POP | 5.13 | 0.51 | 2.81 | 0.34 | 0.15 | 0.20 | 80 |
Mg# = Mg / (Mg + Fe) mole%