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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 |
---|---|---|---|---|
5.5920 | 2.9940 | 0.0860 | 0.086 |
Name | Class | δ18O | δ17O | Δ17O: calc | Δ δ18O | Δ δ17O | Δ Δ17O |
---|---|---|---|---|---|---|---|
Shallowater | Aubrite | 5.5900 | 2.9700 | 0.063 | -0 | -0.02 | -0.02 |
Northwest Africa 4642 | Enst achon | 5.6140 | 2.9750 | 0.056 | 0.02 | -0.02 | -0.03 |
Yamato 981031 | Lunar (anorth) | 5.6400 | 3.0100 | 0.077 | 0.05 | 0.02 | -0.01 |
Atlanta | EL6 | 5.6300 | 2.9600 | 0.032 | 0.04 | -0.03 | -0.05 |
Northwest Africa 6172 | Achondrite-ung | 5.5400 | 3.0000 | 0.119 | -0.05 | 0.01 | 0.03 |
Ufana | EL6 | 5.5400 | 3.0000 | 0.119 | -0.05 | 0.01 | 0.03 |
Khairpur | EL6 | 5.5400 | 2.9800 | 0.099 | -0.05 | -0.01 | 0.01 |
Northwest Africa 3333 | Lunar | 5.5900 | 2.9400 | 0.033 | -0 | -0.05 | -0.05 |
Northwest Africa 8061 | H3.10 | 5.6320 | 3.0400 | 0.111 | 0.04 | 0.05 | 0.03 |
Northwest Africa 7493 | Lunar (feldsp. breccia) | 5.6460 | 2.9630 | 0.027 | 0.05 | -0.03 | -0.06 |
Northwest Africa 13304 | Aubrite | 5.6080 | 2.9240 | 0.008 | 0.02 | -0.07 | -0.08 |
Atlanta | EL6 | 5.5640 | 3.0620 | 0.169 | -0.03 | 0.07 | 0.08 |
Pillistfer | EL6 | 5.5800 | 2.9200 | 0.018 | -0.01 | -0.07 | -0.07 |
Abee | EH4 | 5.5200 | 3.0200 | 0.15 | -0.07 | 0.03 | 0.06 |
Northwest Africa 032 | Lunar (basalt) | 5.6300 | 2.9200 | -0.008 | 0.04 | -0.07 | -0.09 |
Northwest Africa 6077 | Achondrite-ung | 5.5360 | 2.9320 | 0.053 | -0.06 | -0.06 | -0.03 |
Mayo Belwa | Aubrite | 5.5470 | 2.9230 | 0.039 | -0.04 | -0.07 | -0.05 |
Bustee | Aubrite | 5.6110 | 2.9070 | -0.011 | 0.02 | -0.09 | -0.1 |
Grein 002 | EL4/5 | 5.5740 | 2.9060 | 0.008 | -0.02 | -0.09 | -0.08 |
Lewis Cliff 87119 | EL6 | 5.5260 | 2.9310 | 0.057 | -0.07 | -0.06 | -0.03 |
Hvittis | EL6 | 5.6800 | 3.0200 | 0.066 | 0.09 | 0.03 | -0.02 |
Blithfield | EL6 | 5.6750 | 2.9430 | -0.008 | 0.08 | -0.05 | -0.09 |
Northwest Africa 2828 | EL-melt rock | 5.5600 | 2.9000 | 0.009 | -0.03 | -0.09 | -0.08 |
Bishopville | Aubrite | 5.6960 | 2.9970 | 0.035 | 0.1 | 0 | -0.05 |
Graves Nunataks 06128 | Achondrite-ung | 5.6300 | 2.8900 | -0.038 | 0.04 | -0.1 | -0.12 |
Galim (b) | EH3/4-an | 5.5290 | 3.0860 | 0.211 | -0.06 | 0.09 | 0.12 |
Northwest Africa 6572 | Achondrite-ung | 5.7010 | 2.9560 | -0.009 | 0.11 | -0.04 | -0.09 |
Northwest Africa 6572 | Achondrite-ung | 5.6190 | 2.8810 | -0.041 | 0.03 | -0.11 | -0.13 |
Khor Temiki | Aubrite | 5.5180 | 2.9010 | 0.032 | -0.07 | -0.09 | -0.05 |
Yamato 983885 | Lunar (anorth) | 5.6500 | 2.8900 | -0.048 | 0.06 | -0.1 | -0.13 |
Northwest Africa 5885 | Aubrite | 5.5850 | 2.8750 | -0.029 | -0.01 | -0.12 | -0.12 |
Northwest Africa 6065 | Achondrite-ung | 5.5980 | 2.8730 | -0.038 | 0.01 | -0.12 | -0.12 |
Indarch | EH4 | 5.4600 | 2.9600 | 0.121 | -0.13 | -0.03 | 0.03 |
Northwest Africa 7388 | Brachinite | 5.6350 | 2.8620 | -0.068 | 0.04 | -0.13 | -0.15 |
Northwest Africa 2828 | EL-melt rock | 5.5000 | 2.8900 | 0.03 | -0.09 | -0.1 | -0.06 |
Ilafegh 009 | EL7 | 5.5100 | 2.8800 | 0.015 | -0.08 | -0.11 | -0.07 |
Daniel's Kuil | EL6 | 5.7400 | 2.9800 | -0.005 | 0.15 | -0.01 | -0.09 |
Northwest Africa 13304 | Aubrite | 5.5110 | 2.8680 | 0.002 | -0.08 | -0.13 | -0.08 |
Northwest Africa 13304 | Aubrite | 5.7420 | 3.0040 | 0.018 | 0.15 | 0.01 | -0.07 |
Northwest Africa 8061 | H3.10 | 5.6520 | 3.1390 | 0.2 | 0.06 | 0.15 | 0.11 |
Northwest Africa 8785 | EL3 | 5.7070 | 2.8800 | -0.088 | 0.12 | -0.11 | -0.17 |
Northwest Africa 7809 | EH-melt rock | 5.7560 | 2.9830 | -0.01 | 0.16 | -0.01 | -0.1 |
Northwest Africa 6065 | Achondrite-ung | 5.5580 | 2.8300 | -0.06 | -0.03 | -0.16 | -0.15 |
Northwest Africa 6424 | Achondrite-ung | 5.4600 | 2.8900 | 0.051 | -0.13 | -0.1 | -0.04 |
Daniel's Kuil | EL6 | 5.7600 | 3.0400 | 0.045 | 0.17 | 0.05 | -0.04 |
Aubres | Aubrite | 5.4660 | 2.8710 | 0.029 | -0.13 | -0.12 | -0.06 |
Allan Hills A81021 | EL6 | 5.4970 | 2.8450 | -0.013 | -0.09 | -0.15 | -0.1 |
Pesyanoe | Aubrite | 5.4590 | 2.8740 | 0.035 | -0.13 | -0.12 | -0.05 |
Qingzhen | EH3 | 5.5200 | 2.8260 | -0.044 | -0.07 | -0.17 | -0.13 |
Abar al' Uj 012 | Lunar | 5.4600 | 2.8600 | 0.021 | -0.13 | -0.13 | -0.07 |
Northwest Africa 12542 | Martian (nakhlite) | 5.4630 | 3.1330 | 0.292 | -0.13 | 0.14 | 0.21 |
Yilmia | EL6 | 5.4720 | 2.8470 | 0.002 | -0.12 | -0.15 | -0.08 |
Dhofar 1015 | EH4 | 5.7470 | 3.1160 | 0.128 | 0.16 | 0.12 | 0.04 |
Mayo Belwa | Aubrite | 5.4800 | 2.8300 | -0.02 | -0.11 | -0.16 | -0.11 |
Shallowater | Aubrite | 5.7910 | 2.9910 | -0.02 | 0.2 | -0 | -0.11 |
Northwest Africa 14340 | Lunar (feldsp. breccia) | 5.7920 | 3.0030 | -0.009 | 0.2 | 0.01 | -0.1 |
Northwest Africa 12412 | Martian (shergottite) | 5.5540 | 3.1960 | 0.308 | -0.04 | 0.2 | 0.22 |
Saint-Sauveur | EH5 | 5.7250 | 3.1540 | 0.177 | 0.13 | 0.16 | 0.09 |
Ghadduwah 001 | Lunar (anorth) | 5.8100 | 3.0380 | 0.017 | 0.22 | 0.04 | -0.07 |
Northwest Africa 8785 | EL3 | 5.8200 | 2.9960 | -0.03 | 0.23 | 0 | -0.12 |
Ilafegh 009 | EL7 | 5.3790 | 2.9060 | 0.109 | -0.21 | -0.09 | 0.02 |
Almahata Sitta | Ureilite-an | 5.8200 | 3.0300 | 0.004 | 0.23 | 0.04 | -0.08 |
Kaidun | CR2 | 5.7500 | 2.8200 | -0.17 | 0.16 | -0.17 | -0.26 |
St. Mark's | EH5 | 5.7990 | 3.1270 | 0.112 | 0.21 | 0.13 | 0.03 |
Northwest Africa 3136 | Lunar (basalt) | 5.8300 | 3.0600 | 0.028 | 0.24 | 0.07 | -0.06 |
Socorro | Martian (shergottite) | 5.3570 | 3.0770 | 0.291 | -0.23 | 0.08 | 0.21 |
Elephant Moraine 92063 | EL6 | 5.4340 | 2.7960 | -0.03 | -0.16 | -0.2 | -0.12 |
Zakłodzie | Enst achon-ung | 5.3500 | 2.9000 | 0.118 | -0.24 | -0.09 | 0.03 |
Khor Temiki | Aubrite | 5.3600 | 2.8700 | 0.083 | -0.23 | -0.12 | -0 |
Ghadduwah 001 | Lunar (anorth) | 5.8520 | 3.0420 | -0.001 | 0.26 | 0.05 | -0.09 |
Northwest Africa 8785 | EL3 | 5.8490 | 2.9220 | -0.119 | 0.26 | -0.07 | -0.21 |
Sahara 97096 | EH3 | 5.4450 | 2.7660 | -0.065 | -0.15 | -0.23 | -0.15 |
Norton County | Aubrite | 5.3780 | 2.8270 | 0.03 | -0.21 | -0.17 | -0.06 |
Allan Hills A78113 | Aubrite | 5.3500 | 2.8600 | 0.078 | -0.24 | -0.13 | -0.01 |
Northwest Africa 12532 | Brachinite | 5.5730 | 2.7130 | -0.185 | -0.02 | -0.28 | -0.27 |
Pesyanoe | Aubrite | 5.3700 | 2.8200 | 0.028 | -0.22 | -0.17 | -0.06 |
Adhi Kot | EH4 | 5.4200 | 2.7700 | -0.048 | -0.17 | -0.22 | -0.13 |
Northwest Africa 12821 | EL3 | 5.8460 | 3.1190 | 0.079 | 0.25 | 0.13 | -0.01 |
Elephant Moraine 87521 | Lunar (basalt) | 5.3900 | 2.7900 | -0.013 | -0.2 | -0.2 | -0.1 |
Northwest Africa 7042 | Martian (shergottite) | 5.3260 | 3.1020 | 0.332 | -0.27 | 0.11 | 0.25 |
Northwest Africa 13411 | OC5-an | 5.5200 | 3.2770 | 0.407 | -0.07 | 0.28 | 0.32 |
LaPaz Icefield 02205 | Lunar (basalt) | 5.6000 | 2.7000 | -0.212 | 0.01 | -0.29 | -0.3 |
Northwest Africa 5885 | Aubrite | 5.3350 | 2.8490 | 0.075 | -0.26 | -0.15 | -0.01 |
Northwest Africa 12997 | Lunar (troct) | 5.8800 | 3.0745 | 0.017 | 0.29 | 0.08 | -0.07 |
Jajh deh Kot Lalu | EL6 | 5.8860 | 3.0510 | -0.01 | 0.29 | 0.06 | -0.1 |
Northwest Africa 12821 | EL3 | 5.8920 | 3.0450 | -0.019 | 0.3 | 0.05 | -0.11 |
Bustee | Aubrite | 5.3490 | 2.8090 | 0.028 | -0.24 | -0.19 | -0.06 |
Northwest Africa 4486 | OC3 | 5.5100 | 3.2900 | 0.425 | -0.08 | 0.3 | 0.34 |
MacAlpine Hills 88104 | Lunar (anorth) | 5.5000 | 2.7000 | -0.16 | -0.09 | -0.29 | -0.25 |
Adhi Kot | EH4 | 5.4100 | 2.7430 | -0.07 | -0.18 | -0.25 | -0.16 |
Northwest Africa 4864 | Martian (shergottite) | 5.3000 | 3.1000 | 0.344 | -0.29 | 0.11 | 0.26 |
Cumberland Falls | Aubrite | 5.3000 | 3.1000 | 0.344 | -0.29 | 0.11 | 0.26 |
Dar al Gani 1037 | Martian (shergottite) | 5.2900 | 2.9100 | 0.159 | -0.3 | -0.08 | 0.07 |
Northwest Africa 7904 | Brachinite | 5.3480 | 2.7970 | 0.016 | -0.24 | -0.2 | -0.07 |
Parsa | EH3 | 5.3300 | 2.8200 | 0.048 | -0.26 | -0.17 | -0.04 |
Northwest Africa 2353 | Achondrite-ung | 5.5100 | 3.3000 | 0.435 | -0.08 | 0.31 | 0.35 |
Northwest Africa 11729 | Eucrite-an | 5.5400 | 2.6800 | -0.201 | -0.05 | -0.31 | -0.29 |
Northwest Africa 8124 | LL3 | 5.4700 | 3.2920 | 0.448 | -0.12 | 0.3 | 0.36 |
Northwest Africa 6172 | Achondrite-ung | 5.3500 | 2.7800 | -0.002 | -0.24 | -0.21 | -0.09 |
Cumberland Falls | Aubrite | 5.3900 | 2.7400 | -0.063 | -0.2 | -0.25 | -0.15 |
North West Forrest (E6) | EL6 | 5.8810 | 3.1490 | 0.091 | 0.29 | 0.16 | 0 |
Dhofar 1441 | Achondrite-ung | 5.5080 | 2.6750 | -0.189 | -0.08 | -0.32 | -0.28 |
Ramlat Fasad 057 | Martian (shergottite) | 5.2570 | 3.0310 | 0.297 | -0.34 | 0.04 | 0.21 |
Shallowater | Aubrite | 5.3400 | 2.7700 | -0.007 | -0.25 | -0.22 | -0.09 |
Peña Blanca Spring | Aubrite | 5.3300 | 2.7800 | 0.008 | -0.26 | -0.21 | -0.08 |
Northwest Africa 7388 | Brachinite | 5.4130 | 2.7050 | -0.11 | -0.18 | -0.29 | -0.2 |
Aubres | Aubrite | 5.2920 | 2.8190 | 0.067 | -0.3 | -0.18 | -0.02 |
Blithfield | EL6 | 5.2900 | 2.8200 | 0.069 | -0.3 | -0.17 | -0.02 |
Mount Egerton | Aubrite-an | 5.3060 | 2.7920 | 0.033 | -0.29 | -0.2 | -0.05 |
Thiel Mountains 91714 | EL5 | 5.2790 | 2.8330 | 0.088 | -0.31 | -0.16 | 0 |
Northwest Africa 13531 | Lunar (feldsp. breccia) | 5.9330 | 3.0830 | -0.002 | 0.34 | 0.09 | -0.09 |
Northwest Africa 4518 | Achondrite-ung | 5.4700 | 2.6600 | -0.184 | -0.12 | -0.33 | -0.27 |
Silistra | Achondrite-ung | 5.5500 | 2.6400 | -0.246 | -0.04 | -0.35 | -0.33 |
Peña Blanca Spring | Aubrite | 5.3200 | 2.7600 | -0.006 | -0.27 | -0.23 | -0.09 |
South Oman | EH4/5 | 5.6330 | 2.6320 | -0.297 | 0.04 | -0.36 | -0.38 |
Saint-Sauveur | EH5 | 5.9300 | 3.1300 | 0.046 | 0.34 | 0.14 | -0.04 |
Northwest Africa 4294 | OC3 | 5.3100 | 3.2300 | 0.469 | -0.28 | 0.24 | 0.38 |
Northwest Africa 13411 | OC5-an | 5.2400 | 3.1020 | 0.377 | -0.35 | 0.11 | 0.29 |
Northwest Africa 7135 | Chondrite-ung | 5.3260 | 3.2620 | 0.492 | -0.27 | 0.27 | 0.41 |
Northwest Africa 7611 | Lunar | 5.9310 | 3.1610 | 0.077 | 0.34 | 0.17 | -0.01 |
Larkman Nunatak 04316 | Aubrite | 5.2780 | 2.7780 | 0.033 | -0.31 | -0.22 | -0.05 |
Northwest Africa 3136 | Lunar (basalt) | 5.9600 | 3.1000 | 0.001 | 0.37 | 0.11 | -0.09 |
Itqiy | EH7-an | 5.2500 | 2.8200 | 0.09 | -0.34 | -0.17 | 0 |
Northwest Africa 4375 | Winonaite | 5.8800 | 2.7400 | -0.318 | 0.29 | -0.25 | -0.4 |
Lewis Cliff 88180 | EH5 | 5.2950 | 2.7460 | -0.007 | -0.3 | -0.25 | -0.09 |
St. Mark's | EH5 | 5.2400 | 2.8300 | 0.105 | -0.35 | -0.16 | 0.02 |
Khor Temiki | Aubrite | 5.2870 | 2.7520 | 0.003 | -0.31 | -0.24 | -0.08 |
Bishopville | Aubrite | 5.2900 | 2.7400 | -0.011 | -0.3 | -0.25 | -0.1 |
Cumberland Falls | Aubrite | 5.4370 | 3.3590 | 0.532 | -0.15 | 0.37 | 0.45 |
LaPaz Icefield 02233 | Aubrite | 5.2500 | 2.7900 | 0.06 | -0.34 | -0.2 | -0.03 |
Tanezrouft 031 | EL5 | 5.2590 | 2.7710 | 0.036 | -0.33 | -0.22 | -0.05 |
Northwest Africa 7755 | Martian (shergottite) | 5.1880 | 2.9880 | 0.29 | -0.4 | -0.01 | 0.2 |
Northwest Africa 4294 | OC3 | 5.3800 | 3.3400 | 0.542 | -0.21 | 0.35 | 0.46 |
Allan Hills 84007 | Aubrite | 5.2470 | 2.7790 | 0.051 | -0.35 | -0.22 | -0.04 |
Pecora Escarpment 91020 | EL3 | 5.2700 | 2.7440 | 0.004 | -0.32 | -0.25 | -0.08 |
Graves Nunataks 06128 | Achondrite-ung | 6.0100 | 3.0400 | -0.085 | 0.42 | 0.05 | -0.17 |
Graves Nunataks 06128 | Achondrite-ung | 6.0100 | 3.0500 | -0.075 | 0.42 | 0.06 | -0.16 |
Northwest Africa 11071 | EH-melt rock | 5.9960 | 3.1200 | 0.002 | 0.4 | 0.13 | -0.08 |
Allan Hills A78113 | Aubrite | 5.2200 | 2.7700 | 0.056 | -0.37 | -0.22 | -0.03 |
Northwest Africa 8173 | Enst achon | 5.2650 | 2.7080 | -0.03 | -0.33 | -0.29 | -0.12 |
Northwest Africa 8059 | LL3.05 | 5.2770 | 2.6880 | -0.056 | -0.32 | -0.31 | -0.14 |
Hvittis | EL6 | 6.0270 | 3.0820 | -0.052 | 0.44 | 0.09 | -0.14 |
Northwest Africa 5400 | Achondrite-ung | 5.2230 | 2.7410 | 0.025 | -0.37 | -0.25 | -0.06 |
Dhofar 622 | H4-an | 5.1500 | 2.9200 | 0.242 | -0.44 | -0.07 | 0.16 |
Northwest Africa 10659 | Martian (nakhlite) | 5.1390 | 2.9900 | 0.318 | -0.45 | -0 | 0.23 |
Sayh al Uhaymir 188 | EL4 | 5.9900 | 3.2130 | 0.098 | 0.4 | 0.22 | 0.01 |
Peña Blanca Spring | Aubrite | 5.1800 | 2.8000 | 0.106 | -0.41 | -0.19 | 0.02 |
Watson 012 | H7 | 5.5000 | 3.4400 | 0.58 | -0.09 | 0.45 | 0.49 |
Jiddat al Harasis 805 | L(H)3 | 5.6370 | 3.4480 | 0.517 | 0.04 | 0.45 | 0.43 |
Allan Hills A78113 | Aubrite | 5.2700 | 2.6700 | -0.07 | -0.32 | -0.32 | -0.16 |
Pillistfer | EL6 | 6.0390 | 3.0990 | -0.041 | 0.45 | 0.11 | -0.13 |
Catalina 400 | EH5 | 6.0520 | 2.9820 | -0.165 | 0.46 | -0.01 | -0.25 |
Northwest Africa 11962 | Lunar | 6.0300 | 3.1400 | 0.004 | 0.44 | 0.15 | -0.08 |
Northwest Africa 7135 | Chondrite-ung | 5.3330 | 3.3790 | 0.606 | -0.26 | 0.39 | 0.52 |
Northwest Africa 6867 | LL3 | 5.5470 | 3.4590 | 0.575 | -0.04 | 0.47 | 0.49 |
Northwest Africa 7135 | Chondrite-ung | 5.1750 | 3.2070 | 0.516 | -0.42 | 0.21 | 0.43 |
Peña Blanca Spring | Aubrite | 5.1600 | 2.8000 | 0.117 | -0.43 | -0.19 | 0.03 |
Cumberland Falls | Aubrite | 5.1800 | 2.7600 | 0.066 | -0.41 | -0.23 | -0.02 |
Errachidia 004 | Winonaite | 5.8430 | 2.5880 | -0.45 | 0.25 | -0.41 | -0.54 |
Mount DeWitt 12007 | Lunar | 6.0500 | 3.1300 | -0.016 | 0.46 | 0.14 | -0.1 |
Peña Blanca Spring | Aubrite | 5.2670 | 2.6390 | -0.1 | -0.32 | -0.36 | -0.19 |
Northwest Africa 8124 | LL3 | 5.2420 | 3.3260 | 0.6 | -0.35 | 0.33 | 0.51 |
Northwest Africa 12821 | EL3 | 6.0230 | 3.2120 | 0.08 | 0.43 | 0.22 | -0.01 |
Peña Blanca Spring | Aubrite | 5.1900 | 2.7250 | 0.026 | -0.4 | -0.27 | -0.06 |
Northwest Africa 8785 | EL3 | 6.0420 | 3.1800 | 0.038 | 0.45 | 0.19 | -0.05 |
Northwest Africa 6960 | OC3 | 5.2360 | 3.3300 | 0.607 | -0.36 | 0.34 | 0.52 |
Northwest Africa 4864 | Martian (shergottite) | 5.1000 | 3.0000 | 0.348 | -0.49 | 0.01 | 0.26 |
Northwest Africa 13673 | Achondrite (brachinite-like) | 5.3900 | 2.5450 | -0.258 | -0.2 | -0.45 | -0.34 |
Northwest Africa 12542 | Martian (nakhlite) | 5.0960 | 2.9500 | 0.3 | -0.5 | -0.04 | 0.21 |