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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 |
---|---|---|---|---|
3.9500 | 1.0700 | Not given | -0.984 | |
4.1100 | 1.0500 | Not given | -1.087 |
Name | Class | δ18O | δ17O | Δ17O: calc | Δ δ18O | Δ δ17O | Δ Δ17O |
---|---|---|---|---|---|---|---|
Northwest Africa 6592 | Lodranite | 3.9800 | 1.0400 | -1.03 | -0.05 | -0.02 | 0.01 |
Yabrin 003 | Acapulcoite | 4.0400 | 1.1300 | -0.971 | 0.01 | 0.07 | 0.06 |
Northwest Africa 8685 | Acapulcoite | 3.9320 | 1.0250 | -1.02 | -0.1 | -0.04 | 0.02 |
Northwest Africa 6704 | Achondrite-ung | 3.9220 | 1.0150 | -1.024 | -0.11 | -0.05 | 0.01 |
Northwest Africa 4663 | Lodranite | 4.1250 | 1.1440 | -1.001 | 0.09 | 0.08 | 0.03 |
Northwest Africa 10074 | Acapulcoite | 3.9490 | 1.1760 | -0.877 | -0.08 | 0.12 | 0.16 |
Northwest Africa 4663 | Lodranite | 4.0150 | 1.2020 | -0.886 | -0.02 | 0.14 | 0.15 |
Northwest Africa 8685 | Acapulcoite | 3.8410 | 0.8980 | -1.099 | -0.19 | -0.16 | -0.06 |
Northwest Africa 10132 | Achondrite-ung | 3.8320 | 0.8930 | -1.1 | -0.2 | -0.17 | -0.06 |
Northwest Africa 12437 | Acapulcoite/Lodranite | 3.7690 | 0.9210 | -1.039 | -0.26 | -0.14 | -0 |
Northwest Africa 10074 | Acapulcoite | 3.7240 | 1.0210 | -0.915 | -0.31 | -0.04 | 0.12 |
Northwest Africa 10132 | Achondrite-ung | 3.7890 | 0.8570 | -1.113 | -0.24 | -0.2 | -0.08 |
Northwest Africa 6693 | Achondrite-ung | 4.3200 | 1.1900 | -1.056 | 0.29 | 0.13 | -0.02 |
Northwest Africa 10074 | Acapulcoite | 3.6910 | 0.9910 | -0.928 | -0.34 | -0.07 | 0.11 |
Northwest Africa 12437 | Acapulcoite/Lodranite | 3.6900 | 0.8920 | -1.027 | -0.34 | -0.17 | 0.01 |
El Médano 096 | Acapulcoite | 4.3000 | 1.4100 | -0.826 | 0.27 | 0.35 | 0.21 |
Northwest Africa 6704 | Achondrite-ung | 3.6130 | 0.8800 | -0.999 | -0.42 | -0.18 | 0.04 |
Northwest Africa 12437 | Acapulcoite/Lodranite | 3.6180 | 0.8460 | -1.035 | -0.41 | -0.21 | 0 |
Northwest Africa 1982 | Mesosiderite-C | 3.7800 | 1.4700 | -0.496 | -0.25 | 0.41 | 0.54 |
Northwest Africa 12455 | CR7 | 4.3140 | 0.6610 | -1.582 | 0.28 | -0.4 | -0.55 |