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Meteoritical Bulletin: Oxygen Isotope Plots

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Change values (separate multiple values with semicolons) -    δ18O:    δ17O:    Δ17O:
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Oxygen isotope composition of primitive achondrites (SNCs shown for comparison). Data for brachinites, winonaites, acapulcoite-lodranite clan from Greenwood et al. (2012). Data for ureilites from Clayton and Mayeda (1999). Data for Martian meteorites (SNCs) from Franchi et al. (1999) and compiled from laser fluorination analyses in the Meteoritical Bulletin. Δ17O calculated as: Δ17O = δ17O – 0.52δ18O. Individual winonaite and acapulcoite-lodranite clan samples are very highly susceptible to terrestrial weathering resulting in large shifts in δ18O and to a lesser extent Δ17O. Most analysis points for these two groups plotted on this diagram have been cleaned in EATG (ethanolamine thioglycollate) in order to reduce the influence of terrestrial weathering (see Greenwood et al., 2012 for further details). 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).

References:


Data summary:
δ18Oδ17OΔ17O: givenΔ17O: linearComment
4.95902.0550-0.5630-0.524 
5.10702.1790-0.5180-0.477 
5.23602.2320-0.5330-0.491 

Nearest neighbors in MBDB (within 0.5 permil):
NameClassδ18Oδ17OΔ17O: calcΔ δ18OΔ δ17OΔ Δ17O
Northwest Africa 10851Winonaite5.07802.1490-0.492-0.02 -0.01 0.01
Northwest Africa 6448Winonaite5.13402.1670-0.5030.03 0.01 -0.01
Northwest Africa 12543Winonaite5.11802.1200-0.5410.02 -0.04 -0.04
Northwest Africa 6448Winonaite5.15502.1660-0.5150.05 0.01 -0.02
Northwest Africa 12951Winonaite5.03502.1190-0.499-0.07 -0.04 -0
Northwest Africa 13432Winonaite5.19602.1960-0.5060.1 0.04 -0.01
Northwest Africa 1457Winonaite5.10002.3000-0.352-0 0.14 0.15
Northwest Africa 10851Winonaite5.24202.2240-0.5020.14 0.07 -0
Northwest Africa 2251Howardite5.20002.3000-0.4040.1 0.14 0.09
Grapevine MesaCBa5.28302.0910-0.6560.18 -0.06 -0.16
Northwest Africa 11729Eucrite-an4.93402.3010-0.265-0.17 0.15 0.23
Errachidia 004Winonaite5.27602.2960-0.4480.18 0.14 0.05
Old Homestead 003Howardite5.02002.3700-0.24-0.08 0.21 0.26
Northwest Africa 12951Winonaite4.88702.0490-0.492-0.21 -0.11 0
Northwest Africa 10602Eucrite-melt breccia4.95202.3490-0.226-0.15 0.19 0.27
Northwest Africa 6023Brachinite-an5.11002.4020-0.2550.01 0.25 0.24
Northwest Africa 10637Brachinite5.04802.4020-0.223-0.05 0.25 0.27
Northwest Africa 13432Winonaite5.32802.2720-0.4990.23 0.12 -0
Old Homestead 003Howardite4.88002.3000-0.238-0.22 0.14 0.26
El Médano 395Brachinite4.89702.3290-0.217-0.2 0.17 0.28
Northwest Africa 12532Brachinite4.90802.3450-0.207-0.19 0.19 0.29
Zag (b)Winonaite4.84002.0600-0.457-0.26 -0.1 0.04
Northwest Africa 13432Winonaite4.85502.0160-0.509-0.25 -0.14 -0.01
Northwest Africa 6023Brachinite-an4.83802.2690-0.247-0.26 0.11 0.25
Northwest Africa 6023Brachinite-an5.16202.4450-0.2390.06 0.29 0.26
Northwest Africa 12532Brachinite5.11902.4560-0.2060.02 0.3 0.29
Northwest Africa 1617Acapulcoite5.06001.8500-0.781-0.04 -0.31 -0.28
Grapevine MesaCBa4.99802.4560-0.143-0.1 0.3 0.35
Northwest Africa 7904Brachinite4.78102.2100-0.276-0.32 0.05 0.22
Allan Hills 88046EH34.90502.4200-0.131-0.2 0.26 0.37
Ooldea 014Achondrite-prim-ung5.04501.8280-0.795-0.06 -0.33 -0.3
Jiddat al Harasis 556Howardite4.98002.4800-0.11-0.12 0.32 0.39
Northwest Africa 6369Iron, IAB complex5.39002.3500-0.4530.29 0.19 0.04
Northwest Africa 7605Brachinite4.82202.3700-0.137-0.28 0.21 0.36
Northwest Africa 3151Brachinite4.86002.4200-0.107-0.24 0.26 0.39
Northwest Africa 6023Brachinite-an5.22602.4910-0.2270.13 0.34 0.27
Northwest Africa 2904Eucrite-pmict4.74002.1300-0.335-0.36 -0.03 0.16
Kota-KotaEH35.12002.5200-0.1420.02 0.36 0.35
MacAlpine Hills 88136EL35.00102.5100-0.091-0.1 0.35 0.41
Northwest Africa 2627Acapulcoite4.93001.8200-0.744-0.17 -0.34 -0.25
Northwest Africa 10851Winonaite5.43802.3450-0.4830.34 0.19 0.01
Happy CanyonEL6/74.98602.5260-0.067-0.11 0.37 0.43
Northwest Africa 4042Achondrite-ung5.17802.5390-0.1540.08 0.38 0.34
Thiel Mountains 07014Eucrite5.27002.5100-0.230.17 0.35 0.27
Northwest Africa 10637Brachinite4.79402.4050-0.088-0.31 0.25 0.41
SilistraAchondrite-ung5.30002.5000-0.2560.2 0.34 0.24
Al Huwaysah 010Achondrite-ung4.73002.3100-0.15-0.37 0.15 0.35
Northwest Africa 13735Winonaite4.74201.9740-0.492-0.36 -0.18 0.01
Northwest Africa 8059LL3.054.70202.2280-0.217-0.4 0.07 0.28
Northwest Africa 4929Brachinite5.33002.4900-0.2820.23 0.33 0.22
Yamato 691EH34.83002.4600-0.052-0.27 0.3 0.45
Northwest Africa 10637Brachinite5.27302.5260-0.2160.17 0.37 0.28
Northwest Africa 12951Winonaite4.73001.9690-0.491-0.37 -0.19 0.01
Northwest Africa 10423Eucrite-cm4.69002.2300-0.209-0.41 0.07 0.29
Mayo BelwaAubrite4.95302.5470-0.029-0.15 0.39 0.47
South OmanEH4/55.41002.4400-0.3730.31 0.28 0.12
Northwest Africa 2627Acapulcoite4.96001.7500-0.829-0.14 -0.41 -0.33
Northwest Africa 5400Achondrite-ung4.88002.5250-0.013-0.22 0.37 0.48
BishopvilleAubrite5.08502.5870-0.057-0.02 0.43 0.44
PesyanoeAubrite4.78902.4570-0.033-0.31 0.3 0.46
Norton CountyAubrite4.97902.5720-0.017-0.12 0.42 0.48
Northwest Africa 10497Brachinite4.67002.2200-0.208-0.43 0.06 0.29
Northwest Africa 11807Winonaite5.48702.3600-0.4930.39 0.2 0
Dhofar 1983Lunar (feldsp. breccia)5.10002.6000-0.052-0 0.44 0.45
BusteeAubrite4.83002.5100-0.002-0.27 0.35 0.5
Northwest Africa 2656Acapulcoite5.05001.7100-0.916-0.05 -0.45 -0.42
Northwest Africa 6152Brachinite4.65002.2300-0.188-0.45 0.07 0.31
Northwest Africa 8173Enst achon5.01302.6050-0.002-0.09 0.45 0.5
Northwest Africa 6152Brachinite4.65002.2400-0.178-0.45 0.08 0.32
Northwest Africa 2656Acapulcoite5.04001.6900-0.931-0.06 -0.47 -0.43
Elephant Moraine 90033Aubrite5.02602.61900.005-0.07 0.46 0.5
Lewis Cliff 88714EL65.01802.61800.009-0.08 0.46 0.51
Northwest Africa 2340CR25.37001.7700-1.0220.27 -0.39 -0.53
ZakłodzieEnst achon-ung4.86002.56000.033-0.24 0.4 0.53
Norton CountyAubrite5.02002.62000.01-0.08 0.46 0.51
Ramlat Fasad 531Winonaite5.50602.4000-0.4630.41 0.24 0.03
Allan Hills A78113Aubrite4.81002.53000.029-0.29 0.37 0.53
QingzhenEH34.70002.4200-0.024-0.4 0.26 0.47
ItqiyEH7-an4.80002.53000.034-0.3 0.37 0.53
Ooldea 014Achondrite-prim-ung5.55101.9820-0.9050.45 -0.17 -0.41
Queen Alexandra Range 94204EH74.71302.45300.002-0.39 0.3 0.5
Northwest Africa 7904Brachinite4.99902.63400.035-0.1 0.48 0.53
Northwest Africa 4741Achondrite-ung4.99002.64000.045-0.11 0.48 0.54
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