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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 |
---|---|---|---|---|
3.2200 | 1.4800 | -0.2140 | -0.21 | |
3.0800 | 1.4400 | -0.1800 | -0.176 |
Name | Class | δ18O | δ17O | Δ17O: calc | Δ δ18O | Δ δ17O | Δ Δ17O |
---|---|---|---|---|---|---|---|
Northwest Africa 10023 | Pallasite, PMG-an | 3.1430 | 1.4580 | -0.191 | -0.01 | -0 | 0 |
Northwest Africa 5312 | Mesosiderite | 3.1490 | 1.4840 | -0.168 | -0 | 0.02 | 0.02 |
Northwest Africa 10023 | Pallasite, PMG-an | 3.1670 | 1.4400 | -0.222 | 0.02 | -0.02 | -0.03 |
Northwest Africa 12566 | Mesosiderite-C3 | 3.1320 | 1.4250 | -0.218 | -0.02 | -0.03 | -0.03 |
Northwest Africa 1817 | Mesosiderite-B | 3.1900 | 1.4600 | -0.214 | 0.04 | 0 | -0.02 |
Northwest Africa 1880 | Diogenite | 3.1600 | 1.4200 | -0.238 | 0.01 | -0.04 | -0.05 |
Northwest Africa 13954 | Achondrite-ung | 3.1940 | 1.4460 | -0.23 | 0.04 | -0.01 | -0.04 |
Northwest Africa 1461 | Diogenite | 3.1770 | 1.4100 | -0.257 | 0.03 | -0.05 | -0.06 |
Jiddat al Harasis 203 | Mesosiderite-C2 | 3.1430 | 1.4030 | -0.246 | -0.01 | -0.06 | -0.05 |
Northwest Africa 4215 | Diogenite | 3.2030 | 1.4310 | -0.25 | 0.05 | -0.03 | -0.06 |
Northwest Africa 12566 | Mesosiderite-C3 | 3.2090 | 1.4780 | -0.206 | 0.06 | 0.02 | -0.01 |
Northwest Africa 2968 | Achondrite-ung | 3.0800 | 1.4400 | -0.176 | -0.07 | -0.02 | 0.02 |
Jepara | Pallasite, PMG | 3.1600 | 1.3800 | -0.278 | 0.01 | -0.08 | -0.09 |
Northwest Africa 8404 | Diogenite-olivine | 3.2330 | 1.4520 | -0.244 | 0.08 | -0.01 | -0.05 |
Tirhert | Eucrite-unbr | 3.2330 | 1.4740 | -0.222 | 0.08 | 0.01 | -0.03 |
Northwest Africa 5784 | Diogenite | 3.1000 | 1.3900 | -0.237 | -0.05 | -0.07 | -0.04 |
Northwest Africa 10752 | Diogenite | 3.1590 | 1.3610 | -0.296 | 0.01 | -0.1 | -0.1 |
Erg Chech 002 | Achondrite-ung | 3.2010 | 1.5480 | -0.132 | 0.05 | 0.09 | 0.06 |
Chasseron | Pallasite, PMG | 3.2390 | 1.5140 | -0.186 | 0.09 | 0.05 | 0.01 |
Yamato 980318 | Eucrite-cm | 3.1800 | 1.3600 | -0.308 | 0.03 | -0.1 | -0.12 |
Yamato 980318 | Eucrite-cm | 3.1800 | 1.3600 | -0.308 | 0.03 | -0.1 | -0.12 |
Tirhert | Eucrite-unbr | 3.2680 | 1.4510 | -0.264 | 0.12 | -0.01 | -0.07 |
Northwest Africa 13954 | Achondrite-ung | 3.0390 | 1.3920 | -0.203 | -0.11 | -0.07 | -0.01 |
Northwest Africa 10019 | Pallasite, ungrouped | 3.2860 | 1.4790 | -0.245 | 0.14 | 0.02 | -0.05 |
Northwest Africa 8404 | Diogenite-olivine | 3.1030 | 1.3280 | -0.3 | -0.05 | -0.13 | -0.11 |
Northwest Africa 10154 | Diogenite-an | 3.0860 | 1.3320 | -0.287 | -0.06 | -0.13 | -0.09 |
Hambleton | Pallasite, PMG | 3.0290 | 1.3830 | -0.206 | -0.12 | -0.08 | -0.01 |
Northwest Africa 10252 | Pallasite, PMG-an | 3.0490 | 1.3510 | -0.249 | -0.1 | -0.11 | -0.06 |
Northwest Africa 13789 | Diogenite | 3.0460 | 1.3410 | -0.257 | -0.1 | -0.12 | -0.06 |
Northwest Africa 13789 | Diogenite | 3.3060 | 1.4880 | -0.247 | 0.16 | 0.03 | -0.05 |
Graves Nunataks 98098 | Eucrite-unbr | 3.3000 | 1.4000 | -0.331 | 0.15 | -0.06 | -0.14 |
Jepara | Pallasite, PMG | 3.0110 | 1.3670 | -0.213 | -0.14 | -0.09 | -0.02 |
Northwest Africa 4255 | Diogenite | 3.2500 | 1.3100 | -0.395 | 0.1 | -0.15 | -0.2 |
Thiel Mountains 07016 | Pallasite | 3.3100 | 1.5700 | -0.167 | 0.16 | 0.11 | 0.03 |
Northwest Africa 5721 | Eucrite | 2.9900 | 1.3200 | -0.249 | -0.16 | -0.14 | -0.06 |
Northwest Africa 1882 | Mesosiderite-C | 3.3600 | 1.4200 | -0.343 | 0.21 | -0.04 | -0.15 |
Northwest Africa 8739 | Eucrite-pmict | 2.9900 | 1.3120 | -0.257 | -0.16 | -0.15 | -0.06 |
Northwest Africa 10019 | Pallasite, ungrouped | 3.3590 | 1.5290 | -0.233 | 0.21 | 0.07 | -0.04 |
Bordj Badji Mokhtar 001 | Pallasite, ungrouped | 3.3620 | 1.5330 | -0.231 | 0.21 | 0.07 | -0.04 |
Northwest Africa 5312 | Mesosiderite | 3.3640 | 1.5450 | -0.22 | 0.21 | 0.09 | -0.03 |
Northwest Africa 10752 | Diogenite | 3.0060 | 1.2790 | -0.298 | -0.14 | -0.18 | -0.11 |
Tirhert | Eucrite-unbr | 2.9610 | 1.3140 | -0.24 | -0.19 | -0.15 | -0.05 |
Ramlat as Sahmah 287 | Diogenite | 3.3800 | 1.5300 | -0.243 | 0.23 | 0.07 | -0.05 |
Northwest Africa 10023 | Pallasite, PMG-an | 3.3680 | 1.5720 | -0.195 | 0.22 | 0.11 | -0 |
Northwest Africa 5743 | Howardite | 3.4100 | 1.5200 | -0.269 | 0.26 | 0.06 | -0.08 |
Northwest Africa 5743 | Howardite | 3.4100 | 1.5300 | -0.259 | 0.26 | 0.07 | -0.07 |
Sayh al Uhaymir 493 | Achondrite-ung | 3.4100 | 1.5400 | -0.249 | 0.26 | 0.08 | -0.06 |
Tirhert | Eucrite-unbr | 3.4150 | 1.5240 | -0.268 | 0.27 | 0.06 | -0.07 |
Northwest Africa 8739 | Eucrite-pmict | 3.4200 | 1.5080 | -0.286 | 0.27 | 0.05 | -0.09 |
Frontier Mountain 97045 | Eucrite-pmict | 3.4100 | 1.5700 | -0.219 | 0.26 | 0.11 | -0.03 |
Bilanga | Diogenite | 3.4100 | 1.3500 | -0.439 | 0.26 | -0.11 | -0.25 |
Northwest Africa 4271 | Eucrite-pmict | 3.3400 | 1.2500 | -0.502 | 0.19 | -0.21 | -0.31 |
Northwest Africa 13954 | Achondrite-ung | 3.4050 | 1.5870 | -0.2 | 0.25 | 0.13 | -0.01 |
Northwest Africa 5721 | Eucrite | 2.9300 | 1.2600 | -0.277 | -0.22 | -0.2 | -0.08 |
Northwest Africa 10019 | Pallasite, ungrouped | 3.4260 | 1.5710 | -0.226 | 0.28 | 0.11 | -0.03 |
Northwest Africa 2739 | Howardite | 3.4390 | 1.5540 | -0.25 | 0.29 | 0.09 | -0.06 |
Northwest Africa 10752 | Diogenite | 3.4490 | 1.5400 | -0.269 | 0.3 | 0.08 | -0.08 |
Northwest Africa 8777 | Achondrite-ung | 2.9120 | 1.2390 | -0.289 | -0.24 | -0.22 | -0.1 |
Northwest Africa 8404 | Diogenite-olivine | 3.4770 | 1.5100 | -0.314 | 0.33 | 0.05 | -0.12 |
Berthoud | Eucrite-mmict | 3.4600 | 1.5800 | -0.235 | 0.31 | 0.12 | -0.04 |
Tirhert | Eucrite-unbr | 2.8660 | 1.2860 | -0.218 | -0.28 | -0.17 | -0.03 |
Jiddat al Harasis 804 | Eucrite | 3.4730 | 1.5610 | -0.261 | 0.32 | 0.1 | -0.07 |
Yamato 981710 | Diogenite | 3.4900 | 1.3800 | -0.451 | 0.34 | -0.08 | -0.26 |
Northwest Africa 6686 | Howardite | 3.4800 | 1.5800 | -0.246 | 0.33 | 0.12 | -0.05 |
Northwest Africa 12562 | Achondrite-ung | 3.4770 | 1.6090 | -0.215 | 0.33 | 0.15 | -0.02 |
Northwest Africa 8777 | Achondrite-ung | 2.8510 | 1.2570 | -0.239 | -0.3 | -0.2 | -0.05 |
Hutchison Icefield 18035 | Eucrite | 3.4850 | 1.5980 | -0.23 | 0.34 | 0.14 | -0.04 |
Northwest Africa 12562 | Achondrite-ung | 3.4920 | 1.6190 | -0.213 | 0.34 | 0.16 | -0.02 |
Northwest Africa 6489 | Diogenite | 3.5040 | 1.5980 | -0.24 | 0.35 | 0.14 | -0.05 |
Jiddat al Harasis 804 | Eucrite | 3.5010 | 1.6130 | -0.224 | 0.35 | 0.15 | -0.03 |
Northwest Africa 10019 | Pallasite, ungrouped | 3.5160 | 1.5990 | -0.246 | 0.37 | 0.14 | -0.05 |
Northwest Africa 8614 | Winonaite | 3.5430 | 1.4160 | -0.442 | 0.39 | -0.04 | -0.25 |
Yamato 981651 | Eucrite | 3.5500 | 1.4400 | -0.422 | 0.4 | -0.02 | -0.23 |
Sayh al Uhaymir 493 | Achondrite-ung | 3.5300 | 1.5900 | -0.262 | 0.38 | 0.13 | -0.07 |
Miller Range 07613 | Diogenite | 3.5500 | 1.5500 | -0.312 | 0.4 | 0.09 | -0.12 |
Miller Range 07001 | Diogenite-olivine | 3.5500 | 1.3400 | -0.522 | 0.4 | -0.12 | -0.33 |
Erg Chech 007 | Pallasite, PMG-an | 3.5350 | 1.6480 | -0.207 | 0.39 | 0.19 | -0.01 |
Miller Range 07003 | Diogenite | 3.5700 | 1.5700 | -0.303 | 0.42 | 0.11 | -0.11 |
Northwest Africa 10019 | Pallasite, ungrouped | 3.5480 | 1.6350 | -0.226 | 0.4 | 0.18 | -0.03 |
Northwest Africa 10023 | Pallasite, PMG-an | 3.5540 | 1.6300 | -0.235 | 0.4 | 0.17 | -0.04 |
Miller Range 07613 | Diogenite | 3.5700 | 1.6200 | -0.253 | 0.42 | 0.16 | -0.06 |
Erg Chech 007 | Pallasite, PMG-an | 3.5620 | 1.6640 | -0.205 | 0.41 | 0.2 | -0.01 |
Northwest Africa 5784 | Diogenite | 3.5600 | 1.6700 | -0.198 | 0.41 | 0.21 | -0 |
Elephant Moraine 99402 | Brachinite | 3.5700 | 1.6500 | -0.223 | 0.42 | 0.19 | -0.03 |
Northwest Africa 5961 | Eucrite-mmict | 3.5800 | 1.6300 | -0.248 | 0.43 | 0.17 | -0.06 |
Northwest Africa 10765 | Mesosiderite | 3.5790 | 1.6450 | -0.233 | 0.43 | 0.19 | -0.04 |
Northwest Africa 1461 | Diogenite | 3.5840 | 1.6340 | -0.246 | 0.43 | 0.17 | -0.05 |
Northwest Africa 5738 | Eucrite-br | 3.5900 | 1.6200 | -0.263 | 0.44 | 0.16 | -0.07 |
Northwest Africa 6909 | Eucrite | 3.6000 | 1.6470 | -0.242 | 0.45 | 0.19 | -0.05 |
Northwest Africa 10019 | Pallasite, ungrouped | 3.6070 | 1.6300 | -0.262 | 0.46 | 0.17 | -0.07 |
Northwest Africa 2968 | Achondrite-ung | 3.6400 | 1.4600 | -0.449 | 0.49 | 0 | -0.26 |