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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 main-group pallasites and mesosiderites. Data for main-group pallasites and mesosiderites from Greenwood et al. (2006). Solid lines through data points show the mean Δ17O value for each group. Grey-shaded boxes depict the 2σ error on the mesosiderite and main-group pallasite population Δ17O and δ18O mean values. Open squares are individual mesosiderite analyses, open circles individual pallasite analyses. The dashed line labelled (1) is the eucrite fractionation line of Greenwood et al. (2005); the dashed line labelled (2) shows the range of HED values obtained by Weichert et al. (2004). Δ17O is linearized using the format of Miller (2002): Δ17O = 1000 ln (1+ (δ17O/1000)) – λ1000 ln (1+ ( δ18O/1000)) where λ = 0.5247. TFL = Terrestrial Fractionation Line.

References:


Data summary:
δ18Oδ17OΔ17O: givenΔ17O: Miller (2002)Comment
5.39002.3500-0.4500-0.476 

Nearest neighbors in MBDB (within 0.5 permil):
NameClassδ18Oδ17OΔ17O: calcΔ δ18OΔ δ17OΔ Δ17O
Northwest Africa 10851Winonaite5.43802.3450-0.5060.05 -0 -0.03
Northwest Africa 11807Winonaite5.48702.3600-0.5170.1 0.01 -0.04
Northwest Africa 4929Brachinite5.33002.4900-0.305-0.06 0.14 0.17
SilistraAchondrite-ung5.30002.5000-0.279-0.09 0.15 0.2
Northwest Africa 11807Winonaite5.56702.3950-0.5240.18 0.04 -0.05
Northwest Africa 12543Winonaite5.58302.3450-0.5820.19 -0 -0.11
Northwest Africa 10851Winonaite5.24202.2240-0.524-0.15 -0.13 -0.05
Northwest Africa 2251Howardite5.20002.3000-0.427-0.19 -0.05 0.05
Thiel Mountains 07014Eucrite5.27002.5100-0.254-0.12 0.16 0.22
Northwest Africa 10637Brachinite5.27302.5260-0.239-0.12 0.18 0.24
Northwest Africa 6023Brachinite-an5.22602.4910-0.25-0.16 0.14 0.23
Northwest Africa 6023Brachinite-an5.16202.4450-0.262-0.23 0.09 0.21
Northwest Africa 4042Achondrite-ung5.17802.5390-0.177-0.21 0.19 0.3
Northwest Africa 6023Brachinite-an5.11002.4020-0.278-0.28 0.05 0.2
Northwest Africa 1457Winonaite5.10002.3000-0.374-0.29 -0.05 0.1
Northwest Africa 6448Winonaite5.15502.1660-0.537-0.23 -0.18 -0.06
Northwest Africa 6448Winonaite5.13402.1670-0.525-0.26 -0.18 -0.05
Northwest Africa 4518Achondrite-ung5.47002.6600-0.2090.08 0.31 0.27
SilistraAchondrite-ung5.55002.6400-0.270.16 0.29 0.21
Dhofar 1441Achondrite-ung5.50802.6750-0.2130.12 0.33 0.26
Northwest Africa 10637Brachinite5.04802.4020-0.245-0.34 0.05 0.23
Northwest Africa 7388Brachinite5.41302.7050-0.1340.02 0.36 0.34
Northwest Africa 12543Winonaite5.11802.1200-0.563-0.27 -0.23 -0.09
Northwest Africa 8059LL3.055.27702.6880-0.08-0.11 0.34 0.4
Northwest Africa 11729Eucrite-an5.54002.6800-0.2250.15 0.33 0.25
MacAlpine Hills 88104Lunar (anorth)5.50002.7000-0.1840.11 0.35 0.29
Old Homestead 003Howardite5.02002.3700-0.263-0.37 0.02 0.21
Northwest Africa 10851Winonaite5.07802.1490-0.514-0.31 -0.2 -0.04
Northwest Africa 8173Enst achon5.26502.7080-0.054-0.13 0.36 0.42
Northwest Africa 6077Achondrite-ung5.18002.6670-0.05-0.21 0.32 0.43
Dhofar 1983Lunar (feldsp. breccia)5.10002.6000-0.075-0.29 0.25 0.4
Northwest Africa 11807Winonaite5.75802.4770-0.5410.37 0.13 -0.07
Ooldea 014Achondrite-prim-ung5.55101.9820-0.9270.16 -0.37 -0.45
LaPaz Icefield 02205Lunar (basalt)5.60002.7000-0.2370.21 0.35 0.24
Northwest Africa 7904Brachinite5.16602.6940-0.016-0.22 0.34 0.46
Northwest Africa 12951Winonaite5.03502.1190-0.521-0.36 -0.23 -0.05
Northwest Africa 5400Achondrite-ung5.22302.74100.001-0.17 0.39 0.48
Jiddat al Harasis 556Howardite4.98002.4800-0.132-0.41 0.13 0.34
Northwest Africa 6172Achondrite-ung5.35002.7800-0.026-0.04 0.43 0.45
Northwest Africa 10602Eucrite-melt breccia4.95202.3490-0.248-0.44 -0 0.23
Elephant Moraine 87521Lunar (basalt)5.39002.7900-0.0370 0.44 0.44
Northwest Africa 7904Brachinite5.34802.7970-0.008-0.04 0.45 0.47
Northwest Africa 8173Enst achon5.01302.6050-0.025-0.38 0.26 0.45
Northwest Africa 11729Eucrite-an4.93402.3010-0.287-0.46 -0.05 0.19
Northwest Africa 5400Achondrite-ung5.06102.68100.026-0.33 0.33 0.5
Northwest Africa 4537Aubrite5.02102.65000.016-0.37 0.3 0.49
Northwest Africa 5548Achondrite-ung5.08002.72000.055-0.31 0.37 0.53
Northwest Africa 7904Brachinite4.99902.63400.012-0.39 0.28 0.49
El Médano 395Brachinite4.89702.3290-0.239-0.49 -0.02 0.24
Northwest Africa 4741Achondrite-ung4.99002.64000.022-0.4 0.29 0.5
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