Table 1 :
Average mineral chemistry and host oxygen isotope ratios (‰, VSMOW) of individual chondrules in the polished thin section of Kaba CV3 (USNM 1052–1).
| Chondrule | Type | OI-ra | OI-ha | Pxa | Mg#b | Woc | δ18 | Od | δ17 | Od | Δ17 | Od |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| K1 (core) | IAB | - | 12 | 9 | 99.0 | 1 | −1.79 | ±0.33 | −5.15 | ±0.24 | −4.22 | ±0.17 |
| K1 (rim) | - | - | - | 2 | 98.4 | 1 | −1.79 | ±1.36 | −4.91 | ±0.72 | −3.98 | ±0.29 |
| K1 (all) | IAB | - | 12 | 11 | 98.8 | 1 | −1.79 | ±0.34 | −5.13 | ±0.24 | −4.20 | ±0.17 |
| K2 | IA | 2 | 6 | 2 | 99.2 | 2 (1–2) | −3.07 | ±0.50 | −6.05 | ±0.32 | −4.45 | ±0.29 |
| K3 | IAB | - | 4 | 4 | 99.3 | 1 | −2.12 | ±0.42 | −5.00 | ±0.24 | −3.89 | ±0.26 |
| K4 | IA | 6 | 1 | 2 | 99.5 | 1 | −6.91 | ±0.49 | −9.66 | ±0.44 | −6.07 | ±0.28 |
| K5 | IAB | 3 | - | 5 | 99.3 | 3 (1–5) | −4.46 | ±0.47 | −7.87 | ±0.45 | −5.56 | ±0.28 |
| K6 | IA | - | 6 | 4 | 99.3 | 3 (1–3) | −2.45 | ±0.44 | −5.66 | ±0.37 | −4.39 | ±0.21 |
| K7 | IA | - | 5 | 3 | 99.4 | 1 | −5.45 | ±0.40 | −8.11 | ±0.22 | −5.28 | ±0.16 |
| K8 | IAB | - | 6 | 4 | 99.3 | 1 | −5.75 | ±0.40 | −8.78 | ±0.31 | −5.79 | ±0.19 |
| K9 | IAB | - | 2 | 3 | 99.4 | 2 (1–5) | −5.34 | ±0.86 | −8.30 | ±0.65 | −5.53 | ±0.27 |
| K8+9 (rim) | - | - | - | 4 | 99.1 | 4 (1–5) | −4.47 | ±0.36 | −7.61 | ±0.30 | −5.28 | ±0.23 |
| K8+9 (all) | IAB | - | 8 | 11 | 99.3 | 2 (1–5) | −5.37 | ±0.46 | −8.41 | ±0.36 | −5.62 | ±0.19 |
| K10 | IA | 1 | 4 | 5 | 99.0 | 4 (4–5) | −2.67 | ±0.37 | −5.77 | ±0.29 | −4.38 | ±0.19 |
| K11 | IB | - | 3 | 4 | 99.2 | 1 (1–3) | −3.16 | ±0.39 | −6.33 | ±0.26 | −4.68 | ±0.19 |
| K12 | IAB | 1 | 3 | 5 | 99.1 | 1 (1–2) | −4.73 | ±0.37 | −7.85 | ±0.26 | −5.39 | ±0.18 |
| K13 | IB | 3 | - | 5 | 99.0 | 2 (1–4) | −3.08 | ±0.49 | −6.09 | ±0.29 | −4.48 | ±0.23 |
| K14 | IAB | 1 | 3 | 4 | 99.1 | 1 | −4.31 | ±0.39 | −7.64 | ±0.29 | −5.40 | ±0.24 |
| K15 | IB | - | 4 | 4 | 99.4 | 1 | −5.85 | ±0.41 | −8.87 | ±0.25 | −5.83 | ±0.18 |
| K16 | IA | 6 | - | 4 | 99.2 | 5 | −4.62 | ±0.42 | −7.43 | ±0.29 | −5.03 | ±0.27 |
| K17 | IAB | - | 5 | 3 | 99.4 | 1 | −4.90 | ±0.36 | −7.94 | ±0.26 | −5.40 | ±0.21 |
| K18 | IA | 3 | 3 | 1 | 99.6 | 1 | −11.96 | ±0.41 | −14.48 | ±0.28 | −8.26 | ±0.14 |
| K19 | IAB | - | 5 | 2 | 99.3 | 1 | −4.37 | ±0.65 | −7.56 | ±0.42 | −5.29 | ±0.18 |
| K20 | IAB | 2 | 3 | 2 | 99.2 | 1 | −4.10 | ±0.75 | −7.41 | ±0.61 | −5.28 | ±0.26 |
| K21 | IAB | - | 5 | 3 | 99.2 | 1 | −3.41 | ±0.34 | −6.97 | ±0.30 | −5.20 | ±0.26 |
| K22 | IAB | - | 4 | 4 | 98.8 | 1 | −2.74 | ±0.53 | −5.79 | ±0.38 | −4.37 | ±0.26 |
| K23 | IAB | - | 4 | - | 99.5 | - | −7.02 | ±0.31 | −11.44 | ±0.40 | −7.79 | ±0.37 |
| K24 | IAB | 1 | 3 | 4 | 99.4 | 1 | −5.29 | ±0.69 | −8.48 | ±0.63 | −5.73 | ±0.36 |
| K25 | MB | - | - | 3 | 85.7 | 1 | 3.82 | ±0.35 | 2.04 | ±0.30 | 0.06 | ±0.24 |
| K26 | IIA | - | 4 | - | 62.9e | - | 2.74 | ±0.34 | −0.80 | ±0.38 | −2.22 | ±0.28 |
a
Ol-r, Ol-h, and Px represent the number of SIMS analyses from relict olivine, host olivine, and low-Ca pyroxene, respectively.
b
Mean Mg# (MgO/(MgO+FeO) mol%) of olivine and pyroxene excluding relict olivine.
c
Mean Wo component of low-Ca pyroxenes in mol%; ranges shown in parenthesis, if significantly variable.
d
Quoted uncertainties are at 95% confidence level. Analyses of relict olivine are not included in the mean values.
e
Olivine zoned in Mg# (core ~58, rim ~66).