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Oxygen isotope composition of enstatite chondrites and aubrites (SNCs shown for comparison). Data for Enstatite chondrites and aubrites from Newton et al. (2000). Data for Martian meteorites (SNCs) from Franchi et al. (1999) and compiled from laser fluorination analyses in the Meteoritical Bulletin. TFL: terrestrial fractionation line. |
δ18O | δ17O | Δ17O: given | Δ17O: linear | Comment |
---|---|---|---|---|
5.9300 | 3.1300 | 0.0400 | 0.046 | |
5.7250 | 3.1540 | 0.1770 | 0.177 |
Name | Class | δ18O | δ17O | Δ17O: calc | Δ δ18O | Δ δ17O | Δ Δ17O |
---|---|---|---|---|---|---|---|
Northwest Africa 12821 | EL3 | 5.8460 | 3.1190 | 0.079 | 0.02 | -0.02 | -0.03 |
St. Mark's | EH5 | 5.7990 | 3.1270 | 0.112 | -0.03 | -0.02 | -0 |
North West Forrest (E6) | EL6 | 5.8810 | 3.1490 | 0.091 | 0.05 | 0.01 | -0.02 |
Northwest Africa 3136 | Lunar (basalt) | 5.8300 | 3.0600 | 0.028 | 0 | -0.08 | -0.08 |
Dhofar 1015 | EH4 | 5.7470 | 3.1160 | 0.128 | -0.08 | -0.03 | 0.02 |
Northwest Africa 12997 | Lunar (troct) | 5.8800 | 3.0745 | 0.017 | 0.05 | -0.07 | -0.09 |
Ghadduwah 001 | Lunar (anorth) | 5.8520 | 3.0420 | -0.001 | 0.02 | -0.1 | -0.11 |
Northwest Africa 7611 | Lunar | 5.9310 | 3.1610 | 0.077 | 0.1 | 0.02 | -0.03 |
Ghadduwah 001 | Lunar (anorth) | 5.8100 | 3.0380 | 0.017 | -0.02 | -0.1 | -0.09 |
Jajh deh Kot Lalu | EL6 | 5.8860 | 3.0510 | -0.01 | 0.06 | -0.09 | -0.12 |
Almahata Sitta | Ureilite-an | 5.8200 | 3.0300 | 0.004 | -0.01 | -0.11 | -0.11 |
Northwest Africa 12821 | EL3 | 5.8920 | 3.0450 | -0.019 | 0.06 | -0.1 | -0.13 |
Northwest Africa 13531 | Lunar (feldsp. breccia) | 5.9330 | 3.0830 | -0.002 | 0.11 | -0.06 | -0.11 |
Daniel's Kuil | EL6 | 5.7600 | 3.0400 | 0.045 | -0.07 | -0.1 | -0.07 |
Northwest Africa 3136 | Lunar (basalt) | 5.9600 | 3.1000 | 0.001 | 0.13 | -0.04 | -0.11 |
Northwest Africa 14340 | Lunar (feldsp. breccia) | 5.7920 | 3.0030 | -0.009 | -0.04 | -0.14 | -0.12 |
Northwest Africa 8785 | EL3 | 5.8200 | 2.9960 | -0.03 | -0.01 | -0.15 | -0.14 |
Shallowater | Aubrite | 5.7910 | 2.9910 | -0.02 | -0.04 | -0.15 | -0.13 |
Northwest Africa 13304 | Aubrite | 5.7420 | 3.0040 | 0.018 | -0.09 | -0.14 | -0.09 |
Northwest Africa 11071 | EH-melt rock | 5.9960 | 3.1200 | 0.002 | 0.17 | -0.02 | -0.11 |
Northwest Africa 7809 | EH-melt rock | 5.7560 | 2.9830 | -0.01 | -0.07 | -0.16 | -0.12 |
Northwest Africa 8061 | H3.10 | 5.6520 | 3.1390 | 0.2 | -0.18 | -0 | 0.09 |
Sayh al Uhaymir 188 | EL4 | 5.9900 | 3.2130 | 0.098 | 0.16 | 0.07 | -0.01 |
Daniel's Kuil | EL6 | 5.7400 | 2.9800 | -0.005 | -0.09 | -0.16 | -0.12 |
Hvittis | EL6 | 5.6800 | 3.0200 | 0.066 | -0.15 | -0.12 | -0.05 |
Bishopville | Aubrite | 5.6960 | 2.9970 | 0.035 | -0.13 | -0.15 | -0.08 |
Northwest Africa 11962 | Lunar | 6.0300 | 3.1400 | 0.004 | 0.2 | -0 | -0.11 |
Graves Nunataks 06128 | Achondrite-ung | 6.0100 | 3.0500 | -0.075 | 0.18 | -0.09 | -0.19 |
Northwest Africa 12821 | EL3 | 6.0230 | 3.2120 | 0.08 | 0.2 | 0.07 | -0.03 |
Hvittis | EL6 | 6.0270 | 3.0820 | -0.052 | 0.2 | -0.06 | -0.16 |
Graves Nunataks 06128 | Achondrite-ung | 6.0100 | 3.0400 | -0.085 | 0.18 | -0.1 | -0.2 |
Pillistfer | EL6 | 6.0390 | 3.0990 | -0.041 | 0.21 | -0.04 | -0.15 |
Northwest Africa 8785 | EL3 | 6.0420 | 3.1800 | 0.038 | 0.21 | 0.04 | -0.07 |
Northwest Africa 8061 | H3.10 | 5.6320 | 3.0400 | 0.111 | -0.2 | -0.1 | -0 |
Northwest Africa 8785 | EL3 | 5.8490 | 2.9220 | -0.119 | 0.02 | -0.22 | -0.23 |
Mount DeWitt 12007 | Lunar | 6.0500 | 3.1300 | -0.016 | 0.22 | -0.01 | -0.13 |
Northwest Africa 6572 | Achondrite-ung | 5.7010 | 2.9560 | -0.009 | -0.13 | -0.19 | -0.12 |
Yamato 981031 | Lunar (anorth) | 5.6400 | 3.0100 | 0.077 | -0.19 | -0.13 | -0.03 |
Almahata Sitta | Ureilite-an | 6.0500 | 3.2100 | 0.064 | 0.22 | 0.07 | -0.05 |
Blithfield | EL6 | 5.6750 | 2.9430 | -0.008 | -0.15 | -0.2 | -0.12 |
Northwest Africa 12821 | EL3 | 6.0680 | 3.2160 | 0.061 | 0.24 | 0.07 | -0.05 |
Qingzhen | EH3 | 6.0800 | 3.1600 | -0.002 | 0.25 | 0.02 | -0.11 |
Northwest Africa 7493 | Lunar (feldsp. breccia) | 5.6460 | 2.9630 | 0.027 | -0.18 | -0.18 | -0.08 |
Khairpur | EL6 | 6.0890 | 3.1730 | 0.007 | 0.26 | 0.03 | -0.1 |
Indarch | EH4 | 6.0560 | 3.2750 | 0.126 | 0.23 | 0.13 | 0.01 |
Northwest Africa 12821 | EL3 | 6.0910 | 3.1680 | 0.001 | 0.26 | 0.03 | -0.11 |
Atlanta | EL6 | 5.6300 | 2.9600 | 0.032 | -0.2 | -0.18 | -0.08 |
Northwest Africa 4642 | Enst achon | 5.6140 | 2.9750 | 0.056 | -0.21 | -0.17 | -0.06 |
Atlanta | EL6 | 5.5640 | 3.0620 | 0.169 | -0.26 | -0.08 | 0.06 |
Catalina 400 | EH5 | 6.0520 | 2.9820 | -0.165 | 0.22 | -0.16 | -0.28 |
Northwest Africa 12821 | EL3 | 6.0810 | 3.2540 | 0.092 | 0.25 | 0.11 | -0.02 |
Larned | Aubrite-an | 5.5920 | 2.9940 | 0.086 | -0.24 | -0.15 | -0.03 |
Northwest Africa 12412 | Martian (shergottite) | 5.5540 | 3.1960 | 0.308 | -0.27 | 0.05 | 0.2 |
Abee | EH4 | 6.0800 | 3.2700 | 0.108 | 0.25 | 0.13 | -0 |
Northwest Africa 12593 | Lunar (frag. breccia) | 6.1060 | 3.2030 | 0.028 | 0.28 | 0.06 | -0.08 |
Northwest Africa 8785 | EL3 | 5.7070 | 2.8800 | -0.088 | -0.12 | -0.26 | -0.2 |
Shallowater | Aubrite | 5.5900 | 2.9700 | 0.063 | -0.24 | -0.17 | -0.05 |
Northwest Africa 032 | Lunar (basalt) | 5.6300 | 2.9200 | -0.008 | -0.2 | -0.22 | -0.12 |
Galim (b) | EH3/4-an | 5.5290 | 3.0860 | 0.211 | -0.3 | -0.06 | 0.1 |
Yamato 983885 | Lunar (anorth) | 5.6500 | 2.8900 | -0.048 | -0.18 | -0.25 | -0.16 |
Northwest Africa 13304 | Aubrite | 5.6080 | 2.9240 | 0.008 | -0.22 | -0.22 | -0.1 |
Northwest Africa 12821 | EL3 | 6.0490 | 3.3590 | 0.214 | 0.22 | 0.22 | 0.1 |
Willaroy | H3.8-an | 5.8700 | 3.4500 | 0.398 | 0.04 | 0.31 | 0.29 |
Northwest Africa 3333 | Lunar | 5.5900 | 2.9400 | 0.033 | -0.24 | -0.2 | -0.08 |
Bustee | Aubrite | 5.6110 | 2.9070 | -0.011 | -0.22 | -0.24 | -0.12 |
Graves Nunataks 06128 | Achondrite-ung | 5.6300 | 2.8900 | -0.038 | -0.2 | -0.25 | -0.15 |
Northwest Africa 6172 | Achondrite-ung | 5.5400 | 3.0000 | 0.119 | -0.29 | -0.14 | 0.01 |
Ufana | EL6 | 5.5400 | 3.0000 | 0.119 | -0.29 | -0.14 | 0.01 |
Ghadduwah 001 | Lunar (anorth) | 6.1520 | 3.1980 | -0.001 | 0.32 | 0.06 | -0.11 |
Khairpur | EL6 | 5.5400 | 2.9800 | 0.099 | -0.29 | -0.16 | -0.01 |
Abee | EH4 | 5.5200 | 3.0200 | 0.15 | -0.31 | -0.12 | 0.04 |
Kaidun | CR2 | 5.7500 | 2.8200 | -0.17 | -0.08 | -0.32 | -0.28 |
Pillistfer | EL6 | 5.5800 | 2.9200 | 0.018 | -0.25 | -0.22 | -0.09 |
Northwest Africa 6572 | Achondrite-ung | 5.6190 | 2.8810 | -0.041 | -0.21 | -0.26 | -0.15 |
Northwest Africa 13411 | OC5-an | 5.5200 | 3.2770 | 0.407 | -0.31 | 0.14 | 0.29 |
Northwest Africa 7388 | Brachinite | 5.6350 | 2.8620 | -0.068 | -0.19 | -0.28 | -0.18 |
Aridal 010 | Brachinite | 6.1700 | 3.1000 | -0.108 | 0.34 | -0.04 | -0.22 |
Grein 002 | EL4/5 | 5.5740 | 2.9060 | 0.008 | -0.25 | -0.24 | -0.1 |
Northwest Africa 4486 | OC3 | 5.5100 | 3.2900 | 0.425 | -0.32 | 0.15 | 0.31 |
Northwest Africa 6065 | Achondrite-ung | 5.5980 | 2.8730 | -0.038 | -0.23 | -0.27 | -0.15 |
Northwest Africa 12592 | Lunar (frag. breccia) | 6.1740 | 3.2170 | 0.007 | 0.35 | 0.08 | -0.11 |
Northwest Africa 2353 | Achondrite-ung | 5.5100 | 3.3000 | 0.435 | -0.32 | 0.16 | 0.32 |
Mayo Belwa | Aubrite | 5.5470 | 2.9230 | 0.039 | -0.28 | -0.22 | -0.07 |
Almahata Sitta | Ureilite-an | 6.1700 | 3.2400 | 0.032 | 0.34 | 0.1 | -0.08 |
Northwest Africa 6077 | Achondrite-ung | 5.5360 | 2.9320 | 0.053 | -0.29 | -0.21 | -0.06 |
Jiddat al Harasis 805 | L(H)3 | 5.6370 | 3.4480 | 0.517 | -0.19 | 0.31 | 0.41 |
Northwest Africa 5885 | Aubrite | 5.5850 | 2.8750 | -0.029 | -0.24 | -0.27 | -0.14 |
Northwest Africa 2828 | EL-melt rock | 5.5600 | 2.9000 | 0.009 | -0.27 | -0.24 | -0.1 |
Northwest Africa 12542 | Martian (nakhlite) | 5.4630 | 3.1330 | 0.292 | -0.36 | -0.01 | 0.18 |
Lewis Cliff 87119 | EL6 | 5.5260 | 2.9310 | 0.057 | -0.3 | -0.21 | -0.05 |
Northwest Africa 7034 | Martian (polymict breccia) | 5.7900 | 3.5200 | 0.509 | -0.04 | 0.38 | 0.4 |
Northwest Africa 8649 | LL3.05 | 5.7660 | 3.5180 | 0.52 | -0.06 | 0.38 | 0.41 |
Galb Inal | Lunar | 6.1980 | 3.2380 | 0.015 | 0.37 | 0.1 | -0.1 |
Northwest Africa 8124 | LL3 | 5.4700 | 3.2920 | 0.448 | -0.36 | 0.15 | 0.34 |
Khor Temiki | Aubrite | 5.5180 | 2.9010 | 0.032 | -0.31 | -0.24 | -0.08 |
Ramlat Fasad 532 | Lunar (gabbro) | 6.2050 | 3.2490 | 0.022 | 0.38 | 0.11 | -0.09 |
Kota-Kota | EH3 | 6.2210 | 3.1920 | -0.043 | 0.39 | 0.05 | -0.15 |
Pillistfer | EL6 | 6.2100 | 3.2500 | 0.021 | 0.38 | 0.11 | -0.09 |
Almahata Sitta | Ureilite-an | 6.2200 | 3.2300 | -0.004 | 0.39 | 0.09 | -0.12 |
Northwest Africa 4375 | Winonaite | 5.8800 | 2.7400 | -0.318 | 0.05 | -0.4 | -0.43 |
Indarch | EH4 | 5.4600 | 2.9600 | 0.121 | -0.37 | -0.18 | 0.01 |
Ilafegh 009 | EL7 | 5.5100 | 2.8800 | 0.015 | -0.32 | -0.26 | -0.1 |
Northwest Africa 6065 | Achondrite-ung | 5.5580 | 2.8300 | -0.06 | -0.27 | -0.31 | -0.17 |
Northwest Africa 2828 | EL-melt rock | 5.5000 | 2.8900 | 0.03 | -0.33 | -0.25 | -0.08 |
Northwest Africa 13304 | Aubrite | 5.5110 | 2.8680 | 0.002 | -0.32 | -0.27 | -0.11 |
Northwest Africa 6867 | LL3 | 5.5470 | 3.4590 | 0.575 | -0.28 | 0.32 | 0.46 |
Dhofar 1436 | Lunar | 6.2440 | 3.2860 | 0.039 | 0.42 | 0.14 | -0.07 |
Qingzhen | EH3 | 5.5200 | 2.8260 | -0.044 | -0.31 | -0.32 | -0.16 |
Watson 012 | H7 | 5.5000 | 3.4400 | 0.58 | -0.33 | 0.3 | 0.47 |
Allan Hills A81021 | EL6 | 5.4970 | 2.8450 | -0.013 | -0.33 | -0.3 | -0.13 |
Northwest Africa 6424 | Achondrite-ung | 5.4600 | 2.8900 | 0.051 | -0.37 | -0.25 | -0.06 |
Almahata Sitta | Ureilite-an | 6.2600 | 3.2500 | -0.005 | 0.43 | 0.11 | -0.12 |
Cumberland Falls | Aubrite | 5.4370 | 3.3590 | 0.532 | -0.39 | 0.22 | 0.42 |
Northwest Africa 4298 | OC3 | 5.5700 | 3.5100 | 0.614 | -0.26 | 0.37 | 0.5 |
Aubres | Aubrite | 5.4660 | 2.8710 | 0.029 | -0.36 | -0.27 | -0.08 |
Northwest Africa 10922 | Martian (polymict breccia) | 5.7460 | 3.5880 | 0.6 | -0.08 | 0.45 | 0.49 |
Northwest Africa 8649 | LL3.05 | 5.6590 | 3.5630 | 0.62 | -0.17 | 0.42 | 0.51 |
Pesyanoe | Aubrite | 5.4590 | 2.8740 | 0.035 | -0.37 | -0.27 | -0.08 |
Yilmia | EL6 | 5.4720 | 2.8470 | 0.002 | -0.36 | -0.3 | -0.11 |
Northwest Africa 3260 | LL3 | 5.6500 | 3.5690 | 0.631 | -0.18 | 0.43 | 0.52 |
Abar al' Uj 012 | Lunar | 5.4600 | 2.8600 | 0.021 | -0.37 | -0.28 | -0.09 |
Mayo Belwa | Aubrite | 5.4800 | 2.8300 | -0.02 | -0.35 | -0.31 | -0.13 |
Northwest Africa 11444 | Lunar (melt breccia) | 6.2800 | 3.2800 | 0.014 | 0.45 | 0.14 | -0.1 |
Socorro | Martian (shergottite) | 5.3570 | 3.0770 | 0.291 | -0.47 | -0.07 | 0.18 |
Northwest Africa 6867 | LL3 | 5.7640 | 3.6180 | 0.621 | -0.06 | 0.48 | 0.51 |
Northwest Africa 12980 | Lunar (melt breccia) | 6.2890 | 3.2940 | 0.024 | 0.46 | 0.15 | -0.09 |
Burnwell | H4-an | 5.9700 | 3.6100 | 0.506 | 0.14 | 0.47 | 0.39 |
Northwest Africa 4294 | OC3 | 5.3800 | 3.3400 | 0.542 | -0.45 | 0.2 | 0.43 |
Northwest Africa 11729 | Eucrite-an | 6.3120 | 3.0620 | -0.22 | 0.48 | -0.08 | -0.33 |
LaPaz Icefield 02205 | Lunar (basalt) | 5.6000 | 2.7000 | -0.212 | -0.23 | -0.44 | -0.32 |
Northwest Africa 12532 | Brachinite | 5.5730 | 2.7130 | -0.185 | -0.25 | -0.43 | -0.3 |