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Meteoritical Bulletin: Oxygen Isotope Plots

Change plot type:
Change values (separate multiple values with semicolons) -    δ18O:    δ17O:    Δ17O:
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Oxygen isotope composition of differentiated achondrites. Data for angrites and HEDs from Greenwood et al. (2005). Data for Martian meteorites from Franchi et al. (1999). EFL: eucrite fractionation line (Greenwood et al., 2005), AFL: angrite fractionation line (Greenwood et al., 2005), MFL: Martian fractionation line (Franchi et al., 1999), TFL: terrestrial fractionation line. M: average value of Martian meteorite analyses from Franchi et al. (1999). E: bulk terrestrial mantle (Mattey et al., 1994). Open squares: HEDs, open triangles: angrites, open circles: Martian meteorites. Δ17O is linearized using the format of Miller (2002): Δ17O = 1000 ln (1+ (δ17O/1000)) – λ1000 ln (1+ ( δ18O/1000)) where λ = 0.5247.

References:


Data summary:
δ18Oδ17OΔ17O: givenΔ17O: Miller (2002)Comment
1.4220-1.1680-1.9180-1.915 
1.4290-1.1150-1.8690-1.866 
1.5570-1.0990-1.9210-1.917 

Nearest neighbors in MBDB (within 0.5 permil):
NameClassδ18Oδ17OΔ17O: calcΔ δ18OΔ δ17OΔ Δ17O
Northwest Africa 3100Achondrite-prim1.5400-0.9200-1.7290.07 0.21 0.17
Northwest Africa 7502CR21.6220-1.3310-2.1830.15 -0.2 -0.28
Northwest Africa 3100Achondrite-prim1.1500-1.0700-1.674-0.32 0.06 0.22
Fountain HillsCBa1.2800-1.4500-2.123-0.19 -0.32 -0.22
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