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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
4.55002.1300-0.2600-0.257 

Nearest neighbors in MBDB (within 0.5 permil):
NameClassδ18Oδ17OΔ17O: calcΔ δ18OΔ δ17OΔ Δ17O
Northwest Africa 4418Mesosiderite4.52402.1450-0.228-0.03 0.02 0.03
Northwest Africa 2904Eucrite-pmict4.58002.1600-0.2420.03 0.03 0.01
El Médano 395Brachinite4.58202.1700-0.2330.03 0.04 0.02
Northwest Africa 4882Brachinite4.45502.0950-0.242-0.09 -0.03 0.01
Northwest Africa 4882Brachinite4.45502.0950-0.242-0.09 -0.03 0.01
Northwest Africa 6152Brachinite4.65002.2300-0.2090.1 0.1 0.05
Northwest Africa 6152Brachinite4.65002.2400-0.1990.1 0.11 0.06
Northwest Africa 10497Brachinite4.67002.2200-0.2290.12 0.09 0.03
Northwest Africa 4395Diogenite4.39002.0900-0.213-0.16 -0.04 0.04
Northwest Africa 12004Angrite4.44002.2580-0.071-0.11 0.13 0.19
Northwest Africa 7025Mesosiderite4.38702.0820-0.219-0.16 -0.05 0.04
Northwest Africa 10423Eucrite-cm4.69002.2300-0.230.14 0.1 0.03
Northwest Africa 4636Mesosiderite4.38002.0900-0.208-0.17 -0.04 0.05
Allan Hills 12073Eucrite4.40002.0400-0.268-0.15 -0.09 -0.01
Northwest Africa 8659Eucrite4.37602.0830-0.212-0.17 -0.05 0.04
Northwest Africa 8059LL3.054.70202.2280-0.2380.15 0.1 0.02
Ramlat as Sahmah 309Brachinite4.37002.0900-0.202-0.18 -0.04 0.05
Northwest Africa 2904Eucrite-pmict4.74002.1300-0.3560.19 0 -0.1
Northwest Africa 12320Angrite4.41602.2680-0.049-0.13 0.14 0.21
Northwest Africa 4882Brachinite4.36802.0640-0.227-0.18 -0.07 0.03
Northwest Africa 4882Brachinite4.36802.0640-0.227-0.18 -0.07 0.03
Northwest Africa 12004Angrite4.43102.2850-0.04-0.12 0.16 0.22
Northwest Africa 4872Brachinite4.35402.0610-0.223-0.2 -0.07 0.03
Northwest Africa 4872Brachinite4.35402.0610-0.223-0.2 -0.07 0.03
Northwest Africa 12320Angrite4.40702.2810-0.031-0.14 0.15 0.23
Northwest Africa 12320Angrite4.54502.3390-0.045-0 0.21 0.21
Los Vientos 263Pallasite, ungrouped4.34002.0900-0.187-0.21 -0.04 0.07
Northwest Africa 12951Winonaite4.73001.9690-0.5110.18 -0.16 -0.25
Northwest Africa 7904Brachinite4.78102.2100-0.2970.23 0.08 -0.04
Northwest Africa 5400Achondrite-ung4.48602.36700.013-0.06 0.24 0.27
Northwest Africa 11917Winonaite4.54101.8760-0.505-0.01 -0.25 -0.25
Al Huwaysah 010Achondrite-ung4.73002.3100-0.1710.18 0.18 0.09
Northwest Africa 12397Mesosiderite4.32301.9920-0.276-0.23 -0.14 -0.02
Northwest Africa 4872Brachinite4.30802.0120-0.248-0.24 -0.12 0.01
Northwest Africa 4872Brachinite4.30802.0120-0.248-0.24 -0.12 0.01
Northwest Africa 12543Winonaite4.66201.8800-0.5650.11 -0.25 -0.31
Northwest Africa 12004Angrite4.28402.1970-0.051-0.27 0.07 0.21
Northwest Africa 8173Enst achon4.60002.4000-0.0130.05 0.27 0.24
El Médano 395Brachinite4.29002.0200-0.23-0.26 -0.11 0.03
Northwest Africa 6292Achondrite-ung4.55002.42000.0330 0.29 0.29
Zag (b)Winonaite4.84002.0600-0.4780.29 -0.07 -0.22
Northwest Africa 6023Brachinite-an4.83802.2690-0.2680.29 0.14 -0.01
Northwest Africa 6474Brachinite4.23402.1810-0.04-0.32 0.05 0.22
Northwest Africa 13432Winonaite4.85502.0160-0.530.31 -0.11 -0.27
Northwest Africa 12951Winonaite4.88702.0490-0.5130.34 -0.08 -0.26
Jiddat al Harasis 395Diogenite4.23001.9900-0.229-0.32 -0.14 0.03
Thiel Mountains 07009EL64.21002.21000.001-0.34 0.08 0.26
Acfer 366CH34.61001.7810-0.6360.06 -0.35 -0.38
Northwest Africa 7605Brachinite4.82202.3700-0.1590.27 0.24 0.1
Northwest Africa 10637Brachinite4.79402.4050-0.110.24 0.28 0.15
Northwest Africa 5363Achondrite-ung4.18302.1520-0.043-0.37 0.02 0.21
Old Homestead 003Howardite4.88002.3000-0.2590.33 0.17 -0
Northwest Africa 2999Angrite4.15402.0950-0.084-0.4 -0.03 0.17
El Médano 395Brachinite4.89702.3290-0.2390.35 0.2 0.02
Dhofar 378Martian (shergottite)4.46002.52000.18-0.09 0.39 0.44
Northwest Africa 8686Martian (shergottite)4.41702.51100.193-0.13 0.38 0.45
Northwest Africa 6690Diogenite4.19001.9400-0.258-0.36 -0.19 -0
Northwest Africa 4937Winonaite4.37001.7630-0.529-0.18 -0.37 -0.27
Northwest Africa 10424Eucrite-cm4.18001.9500-0.243-0.37 -0.18 0.01
Northwest Africa 12338Achondrite-ung4.16001.9800-0.202-0.39 -0.15 0.05
Northwest Africa 11729Eucrite-an4.93402.3010-0.2870.38 0.17 -0.03
Northwest Africa 3151Brachinite4.86002.4200-0.1290.31 0.29 0.13
Northwest Africa 7025Mesosiderite4.14901.9610-0.215-0.4 -0.17 0.04
Northwest Africa 10416Martian4.31002.50000.238-0.24 0.37 0.49
Northwest Africa 739CH34.32001.7500-0.516-0.23 -0.38 -0.26
Northwest Africa 5718Martian (shergottite)4.29002.50000.249-0.26 0.37 0.51
Northwest Africa 6963Martian (shergottite)4.33202.52800.255-0.22 0.4 0.51
Northwest Africa 12522Martian (shergottite)4.42602.56700.244-0.12 0.44 0.5
Northwest Africa 10593Martian (shergottite)4.48402.58200.229-0.07 0.45 0.49
Northwest Africa 10602Eucrite-melt breccia4.95202.3490-0.2480.4 0.22 0.01
Northwest Africa 13355Eucrite-an4.15701.8950-0.286-0.39 -0.24 -0.03
Yamato 980459Martian (shergottite)4.31002.52000.258-0.24 0.39 0.51
Yamato 980459Martian (shergottite)4.31002.52000.258-0.24 0.39 0.51
Sayh al Uhaymir 094Martian (shergottite)4.29002.51000.259-0.26 0.38 0.52
Northwest Africa 2986Martian (shergottite)4.45002.58000.245-0.1 0.45 0.5
Northwest Africa 2999Angrite4.09302.0540-0.093-0.46 -0.08 0.16
Northwest Africa 7032Martian (shergottite)4.42302.57700.256-0.13 0.45 0.51
Northwest Africa 11264Eucrite4.13001.9300-0.236-0.42 -0.2 0.02
Northwest Africa 8124LL34.71802.56800.0930.17 0.44 0.35
Northwest Africa 10416Martian4.39202.57300.268-0.16 0.44 0.52
Northwest Africa 10153Martian (nakhlite)4.44602.59100.258-0.1 0.46 0.51
Northwest Africa 5718Martian (shergottite)4.47002.60000.254-0.08 0.47 0.51
Northwest Africa 10593Martian (shergottite)4.37302.57600.281-0.18 0.45 0.54
Northwest Africa 5990Martian (shergottite)4.21002.47000.261-0.34 0.34 0.52
Northwest Africa 12540Eucrite-an4.12001.9090-0.252-0.43 -0.22 0
Northwest Africa 12951Winonaite5.03502.1190-0.5210.49 -0.01 -0.26
Northwest Africa 8656Martian (shergottite)4.27602.53400.29-0.27 0.4 0.55
Northwest Africa 5990Martian (shergottite)4.15002.41000.232-0.4 0.28 0.49
Northwest Africa 7812Angrite4.06802.0510-0.083-0.48 -0.08 0.17
Northwest Africa 2627Acapulcoite4.93001.8200-0.7650.38 -0.31 -0.51
Northwest Africa 6484Lodranite4.54201.6350-0.746-0.01 -0.5 -0.49
Northwest Africa 13457Eucrite4.12501.8750-0.289-0.43 -0.26 -0.03
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