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Oxygen isotope composition of HEDs and angrites. Data for angrites and HEDs from Greenwood et al. (2005). EFL: eucrite fractionation line (Greenwood et al., 2005), AFL: angrite fractionation line (Greenwood et al., 2005), TFL: terrestrial fractionation line. B: Bholghati matrix, P: Pasamonte. Δ17O is linearized using the format of Miller (2002): Δ17O = 1000 ln (1+ (δ17O/1000)) – λ1000 ln (1+ ( δ18O/1000)) where λ = 0.5247. |
δ18O | δ17O | Δ17O: given | Δ17O: Miller (2002) | Comment |
---|---|---|---|---|
5.2000 | 2.3000 | -0.4000 | -0.427 |
Name | Class | δ18O | δ17O | Δ17O: calc | Δ δ18O | Δ δ17O | Δ Δ17O |
---|---|---|---|---|---|---|---|
Northwest Africa 10851 | Winonaite | 5.2420 | 2.2240 | -0.524 | 0.04 | -0.08 | -0.1 |
Northwest Africa 1457 | Winonaite | 5.1000 | 2.3000 | -0.374 | -0.1 | 0 | 0.05 |
Northwest Africa 13432 | Winonaite | 5.1960 | 2.1960 | -0.528 | -0 | -0.1 | -0.1 |
Northwest Africa 13432 | Winonaite | 5.3280 | 2.2720 | -0.521 | 0.13 | -0.03 | -0.09 |
Northwest Africa 6023 | Brachinite-an | 5.1100 | 2.4020 | -0.278 | -0.09 | 0.1 | 0.15 |
Northwest Africa 6448 | Winonaite | 5.1550 | 2.1660 | -0.537 | -0.04 | -0.13 | -0.11 |
Northwest Africa 6448 | Winonaite | 5.1340 | 2.1670 | -0.525 | -0.07 | -0.13 | -0.1 |
Northwest Africa 6023 | Brachinite-an | 5.1620 | 2.4450 | -0.262 | -0.04 | 0.15 | 0.16 |
Northwest Africa 10637 | Brachinite | 5.0480 | 2.4020 | -0.245 | -0.15 | 0.1 | 0.18 |
Northwest Africa 6023 | Brachinite-an | 5.2260 | 2.4910 | -0.25 | 0.03 | 0.19 | 0.18 |
Old Homestead 003 | Howardite | 5.0200 | 2.3700 | -0.263 | -0.18 | 0.07 | 0.16 |
Northwest Africa 10851 | Winonaite | 5.0780 | 2.1490 | -0.514 | -0.12 | -0.15 | -0.09 |
Northwest Africa 6369 | Iron, IAB complex | 5.3900 | 2.3500 | -0.476 | 0.19 | 0.05 | -0.05 |
Northwest Africa 12543 | Winonaite | 5.1180 | 2.1200 | -0.563 | -0.08 | -0.18 | -0.14 |
Thiel Mountains 07014 | Eucrite | 5.2700 | 2.5100 | -0.254 | 0.07 | 0.21 | 0.17 |
Silistra | Achondrite-ung | 5.3000 | 2.5000 | -0.279 | 0.1 | 0.2 | 0.15 |
Northwest Africa 4929 | Brachinite | 5.3300 | 2.4900 | -0.305 | 0.13 | 0.19 | 0.12 |
Northwest Africa 10637 | Brachinite | 5.2730 | 2.5260 | -0.239 | 0.07 | 0.23 | 0.19 |
Northwest Africa 4042 | Achondrite-ung | 5.1780 | 2.5390 | -0.177 | -0.02 | 0.24 | 0.25 |
Northwest Africa 10851 | Winonaite | 5.4380 | 2.3450 | -0.506 | 0.24 | 0.05 | -0.08 |
Northwest Africa 12951 | Winonaite | 5.0350 | 2.1190 | -0.521 | -0.17 | -0.18 | -0.09 |
Northwest Africa 10602 | Eucrite-melt breccia | 4.9520 | 2.3490 | -0.248 | -0.25 | 0.05 | 0.18 |
Northwest Africa 11729 | Eucrite-an | 4.9340 | 2.3010 | -0.287 | -0.27 | 0 | 0.14 |
Jiddat al Harasis 556 | Howardite | 4.9800 | 2.4800 | -0.132 | -0.22 | 0.18 | 0.29 |
Northwest Africa 11807 | Winonaite | 5.4870 | 2.3600 | -0.517 | 0.29 | 0.06 | -0.09 |
El Médano 395 | Brachinite | 4.8970 | 2.3290 | -0.239 | -0.3 | 0.03 | 0.19 |
Dhofar 1983 | Lunar (feldsp. breccia) | 5.1000 | 2.6000 | -0.075 | -0.1 | 0.3 | 0.35 |
Old Homestead 003 | Howardite | 4.8800 | 2.3000 | -0.259 | -0.32 | 0 | 0.17 |
Northwest Africa 8173 | Enst achon | 5.0130 | 2.6050 | -0.025 | -0.19 | 0.31 | 0.4 |
Northwest Africa 3151 | Brachinite | 4.8600 | 2.4200 | -0.129 | -0.34 | 0.12 | 0.3 |
Northwest Africa 6023 | Brachinite-an | 4.8380 | 2.2690 | -0.268 | -0.36 | -0.03 | 0.16 |
Northwest Africa 6077 | Achondrite-ung | 5.1800 | 2.6670 | -0.05 | -0.02 | 0.37 | 0.38 |
Northwest Africa 11807 | Winonaite | 5.5670 | 2.3950 | -0.524 | 0.37 | 0.1 | -0.1 |
Northwest Africa 7605 | Brachinite | 4.8220 | 2.3700 | -0.159 | -0.38 | 0.07 | 0.27 |
Northwest Africa 12543 | Winonaite | 5.5830 | 2.3450 | -0.582 | 0.38 | 0.05 | -0.16 |
Northwest Africa 7904 | Brachinite | 4.9990 | 2.6340 | 0.012 | -0.2 | 0.33 | 0.44 |
Northwest Africa 5400 | Achondrite-ung | 4.8800 | 2.5250 | -0.035 | -0.32 | 0.23 | 0.39 |
Northwest Africa 4537 | Aubrite | 5.0210 | 2.6500 | 0.016 | -0.18 | 0.35 | 0.44 |
Northwest Africa 7904 | Brachinite | 5.1660 | 2.6940 | -0.016 | -0.03 | 0.39 | 0.41 |
Northwest Africa 8059 | LL3.05 | 5.2770 | 2.6880 | -0.08 | 0.08 | 0.39 | 0.35 |
Northwest Africa 4741 | Achondrite-ung | 4.9900 | 2.6400 | 0.022 | -0.21 | 0.34 | 0.45 |
Northwest Africa 12951 | Winonaite | 4.8870 | 2.0490 | -0.513 | -0.31 | -0.25 | -0.09 |
Northwest Africa 5400 | Achondrite-ung | 5.0610 | 2.6810 | 0.026 | -0.14 | 0.38 | 0.45 |
Northwest Africa 8173 | Enst achon | 5.2650 | 2.7080 | -0.054 | 0.06 | 0.41 | 0.37 |
Northwest Africa 10637 | Brachinite | 4.7940 | 2.4050 | -0.11 | -0.41 | 0.11 | 0.32 |
Northwest Africa 7904 | Brachinite | 4.7810 | 2.2100 | -0.297 | -0.42 | -0.09 | 0.13 |
Zag (b) | Winonaite | 4.8400 | 2.0600 | -0.478 | -0.36 | -0.24 | -0.05 |
Northwest Africa 5548 | Achondrite-ung | 5.0800 | 2.7200 | 0.055 | -0.12 | 0.42 | 0.48 |
Northwest Africa 5548 | Achondrite-ung | 5.0000 | 2.6900 | 0.067 | -0.2 | 0.39 | 0.49 |
Northwest Africa 5400 | Achondrite-ung | 5.2230 | 2.7410 | 0.001 | 0.02 | 0.44 | 0.43 |
Northwest Africa 13432 | Winonaite | 4.8550 | 2.0160 | -0.53 | -0.35 | -0.28 | -0.1 |
Northwest Africa 4518 | Achondrite-ung | 5.4700 | 2.6600 | -0.209 | 0.27 | 0.36 | 0.22 |
Northwest Africa 7388 | Brachinite | 5.4130 | 2.7050 | -0.134 | 0.21 | 0.41 | 0.29 |
Al Huwaysah 010 | Achondrite-ung | 4.7300 | 2.3100 | -0.171 | -0.47 | 0.01 | 0.26 |
Northwest Africa 1617 | Acapulcoite | 5.0600 | 1.8500 | -0.803 | -0.14 | -0.45 | -0.38 |
Ooldea 014 | Achondrite-prim-ung | 5.5510 | 1.9820 | -0.927 | 0.35 | -0.32 | -0.5 |
Dhofar 1441 | Achondrite-ung | 5.5080 | 2.6750 | -0.213 | 0.31 | 0.38 | 0.21 |
Silistra | Achondrite-ung | 5.5500 | 2.6400 | -0.27 | 0.35 | 0.34 | 0.16 |
Northwest Africa 2904 | Eucrite-pmict | 4.7400 | 2.1300 | -0.356 | -0.46 | -0.17 | 0.07 |
Ooldea 014 | Achondrite-prim-ung | 5.0450 | 1.8280 | -0.817 | -0.16 | -0.47 | -0.39 |