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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
5.41302.7050-0.1530-0.11 
5.63502.8620-0.1130-0.068 

Nearest neighbors in MBDB (within 0.5 permil):
NameClassδ18Oδ17OΔ17O: calcΔ δ18OΔ δ17OΔ Δ17O
Northwest Africa 6065Achondrite-ung5.55802.8300-0.060.03 0.05 0.03
MacAlpine Hills 88104Lunar (anorth)5.50002.7000-0.16-0.02 -0.08 -0.07
Abar al' Uj 012Lunar5.46002.86000.021-0.06 0.08 0.11
Northwest Africa 11729Eucrite-an5.54002.6800-0.2010.02 -0.1 -0.11
Northwest Africa 2828EL-melt rock5.50002.89000.03-0.02 0.11 0.12
Dhofar 1441Achondrite-ung5.50802.6750-0.189-0.02 -0.11 -0.1
Northwest Africa 5885Aubrite5.58502.8750-0.0290.06 0.09 0.06
LaPaz Icefield 02205Lunar (basalt)5.60002.7000-0.2120.08 -0.08 -0.12
Northwest Africa 6065Achondrite-ung5.59802.8730-0.0380.07 0.09 0.05
Northwest Africa 2828EL-melt rock5.56002.90000.0090.04 0.12 0.1
Northwest Africa 6424Achondrite-ung5.46002.89000.051-0.06 0.11 0.14
Elephant Moraine 87521Lunar (basalt)5.39002.7900-0.013-0.13 0.01 0.08
Northwest Africa 4518Achondrite-ung5.47002.6600-0.184-0.05 -0.12 -0.1
Northwest Africa 6572Achondrite-ung5.61902.8810-0.0410.09 0.1 0.05
SilistraAchondrite-ung5.55002.6400-0.2460.03 -0.14 -0.16
Northwest Africa 6077Achondrite-ung5.53602.93200.0530.01 0.15 0.14
Graves Nunataks 06128Achondrite-ung5.63002.8900-0.0380.11 0.11 0.05
Yamato 983885Lunar (anorth)5.65002.8900-0.0480.13 0.11 0.04
Northwest Africa 3333Lunar5.59002.94000.0330.07 0.16 0.12
Northwest Africa 032Lunar (basalt)5.63002.9200-0.0080.11 0.14 0.08
Northwest Africa 6172Achondrite-ung5.35002.7800-0.002-0.17 -0 0.09
Northwest Africa 7904Brachinite5.34802.79700.016-0.18 0.01 0.11
Northwest Africa 5885Aubrite5.33502.84900.075-0.19 0.07 0.16
Northwest Africa 8785EL35.70702.8800-0.0880.18 0.1 0
Northwest Africa 4642Enst achon5.61402.97500.0560.09 0.19 0.14
Northwest Africa 7493Lunar (feldsp. breccia)5.64602.96300.0270.12 0.18 0.12
Northwest Africa 6172Achondrite-ung5.54003.00000.1190.02 0.22 0.21
Northwest Africa 6572Achondrite-ung5.70102.9560-0.0090.18 0.17 0.08
Yamato 981031Lunar (anorth)5.64003.01000.0770.12 0.23 0.17
Northwest Africa 8059LL3.055.27702.6880-0.056-0.25 -0.1 0.03
Dar al Gani 1037Martian (shergottite)5.29002.91000.159-0.23 0.13 0.25
Northwest Africa 8173Enst achon5.26502.7080-0.03-0.26 -0.08 0.06
Northwest Africa 8061H3.105.63203.04000.1110.11 0.26 0.2
Northwest Africa 5400Achondrite-ung5.22302.74100.025-0.3 -0.04 0.11
Northwest Africa 4929Brachinite5.33002.4900-0.282-0.19 -0.29 -0.19
Northwest Africa 8785EL35.84902.9220-0.1190.33 0.14 -0.03
Northwest Africa 12542Martian (nakhlite)5.46303.13300.292-0.06 0.35 0.38
Northwest Africa 4375Winonaite5.88002.7400-0.3180.36 -0.04 -0.23
Northwest Africa 10637Brachinite5.27302.5260-0.216-0.25 -0.26 -0.13
SilistraAchondrite-ung5.30002.5000-0.256-0.22 -0.28 -0.17
Northwest Africa 6077Achondrite-ung5.18002.6670-0.027-0.34 -0.12 0.06
Ramlat Fasad 057Martian (shergottite)5.25703.03100.297-0.27 0.25 0.39
Northwest Africa 8785EL35.82002.9960-0.030.3 0.21 0.06
Northwest Africa 7904Brachinite5.16602.69400.008-0.36 -0.09 0.1
Thiel Mountains 07014Eucrite5.27002.5100-0.23-0.25 -0.27 -0.14
Northwest Africa 7042Martian (shergottite)5.32603.10200.332-0.2 0.32 0.42
Northwest Africa 8061H3.105.65203.13900.20.13 0.36 0.29
Northwest Africa 11807Winonaite5.75802.4770-0.5170.23 -0.31 -0.43
Northwest Africa 4864Martian (shergottite)5.30003.10000.344-0.22 0.32 0.43
Northwest Africa 11807Winonaite5.56702.3950-0.50.04 -0.39 -0.41
Northwest Africa 7755Martian (shergottite)5.18802.98800.29-0.34 0.2 0.38
Dhofar 622H4-an5.15002.92000.242-0.37 0.14 0.33
Dhofar 1015EH45.74703.11600.1280.22 0.33 0.22
Northwest Africa 3136Lunar (basalt)5.83003.06000.0280.31 0.28 0.12
Northwest Africa 12412Martian (shergottite)5.55403.19600.3080.03 0.41 0.4
Northwest Africa 6023Brachinite-an5.22602.4910-0.227-0.3 -0.29 -0.14
Northwest Africa 4042Achondrite-ung5.17802.5390-0.154-0.35 -0.24 -0.06
Northwest Africa 11807Winonaite5.48702.3600-0.493-0.04 -0.42 -0.4
Northwest Africa 10659Martian (nakhlite)5.13902.99000.318-0.39 0.21 0.41
Northwest Africa 12543Winonaite5.58302.3450-0.5580.06 -0.44 -0.47
Northwest Africa 10851Winonaite5.43802.3450-0.483-0.09 -0.44 -0.39
Northwest Africa 5548Achondrite-ung5.08002.72000.078-0.44 -0.06 0.17
Northwest Africa 12241Martian (shergottite)5.09202.90700.259-0.43 0.12 0.35
Northwest Africa 12821EL35.89203.0450-0.0190.37 0.26 0.07
Northwest Africa 6369Iron, IAB complex5.39002.3500-0.453-0.13 -0.43 -0.36
Northwest Africa 12542Martian (nakhlite)5.09602.95000.3-0.43 0.17 0.39
Dhofar 1983Lunar (feldsp. breccia)5.10002.6000-0.052-0.42 -0.18 0.04
Northwest Africa 12821EL35.84603.11900.0790.32 0.34 0.17
Northwest Africa 12542Martian (nakhlite)5.07602.92700.287-0.45 0.14 0.38
Northwest Africa 5400Achondrite-ung5.06102.68100.049-0.46 -0.1 0.14
Northwest Africa 4864Martian (shergottite)5.10003.00000.348-0.42 0.22 0.44
Jiddat al Harasis 479 Martian (shergottite)5.07002.95100.315-0.45 0.17 0.4
Northwest Africa 4294OC35.31003.23000.469-0.21 0.45 0.56
Northwest Africa 6023Brachinite-an5.16202.4450-0.239-0.36 -0.34 -0.15
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