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- W2037706908 abstract "The Pt-Re-Os isotopic and elemental systematics of 13 group IIAB and 23 group IIIAB iron meteorites are examined. As has been noted previously for iron meteorite groups and experimental systems, solid metal-liquid metal bulk distribution coefficients (D values) for both IIAB and IIIAB systems show DOs>DRe>>DPt>1 during the initial stages of core crystallization. Assuming closed-system crystallization, the latter stages of crystallization for each core are generally characterized by DPt>DRe>DOs. The processes governing the concentrations of these elements are much more complex in the IIIAB core relative to the IIAB core. Several crystallization models utilizing different starting parameters and bulk distribution coefficients are considered for the Re-Os pair. Each model has flaws, but in general, the results suggest that the concentrations of these elements were dominated by equilibrium crystallization and subsequent interactions between solid metal and both equilibrium and evolved melts. Late additions of primitive metal to either core were likely minor or nonexistent. The 187Re-187Os systematics of the IIAB and IIIAB groups are consistent with generally closed-system behavior for both elements since the first several tens of Ma of the formation of the solar system, consistent with short-lived chronometers. The Re-Os isochron ages for the complete suites of IIAB and IIIAB irons are 4530 ± 50 Ma and 4517 ± 32 Ma, respectively, and are similar to previously reported Re-Os ages for the lower-Ni endmembers of these two groups. Both isochrons are consistent with, but do not require crystallization of the entire groups within 10–30 Ma of the initiation of crystallization. The first high-precision 190Pt-186Os isochrons for IIAB and IIIAB irons are presented. The Pt-Os isochron ages for the IIAB and IIIAB irons, calculated using the current best estimate of the λ for 190Pt, are 4323 ± 80 Ma and 4325 ± 26 Ma respectively. The Re-Os and Pt-Os ages do not overlap within the uncertainties. The younger apparent ages recorded by the Pt-Os system likely reflect error in the 190Pt decay constant. The slope from the Pt-Os isochron is combined with the age from the Re-Os isochron for the IIIAB irons to calculate a revised λ of 1.415 × 10−12 a−1 for 190Pt, although additional study of this decay constant is still needed." @default.
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- W2037706908 date "2004-03-01" @default.
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- W2037706908 title "Pt-Re-Os systematics of group IIAB and IIIAB iron meteorites 1 1Associate editor: G. Herzog" @default.
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- W2037706908 cites W1970207554 @default.
- W2037706908 cites W1970968967 @default.
- W2037706908 cites W1974867003 @default.
- W2037706908 cites W1976201010 @default.
- W2037706908 cites W1977693807 @default.
- W2037706908 cites W1977710131 @default.
- W2037706908 cites W1977744767 @default.
- W2037706908 cites W1983485353 @default.
- W2037706908 cites W1993636664 @default.
- W2037706908 cites W1998133890 @default.
- W2037706908 cites W2011250343 @default.
- W2037706908 cites W2011352813 @default.
- W2037706908 cites W2011870553 @default.
- W2037706908 cites W2014604070 @default.
- W2037706908 cites W2016611062 @default.
- W2037706908 cites W2017443650 @default.
- W2037706908 cites W2018436797 @default.
- W2037706908 cites W2026913058 @default.
- W2037706908 cites W2028476972 @default.
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- W2037706908 cites W2034307988 @default.
- W2037706908 cites W2044220799 @default.
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- W2037706908 cites W2059750087 @default.
- W2037706908 cites W2060472760 @default.
- W2037706908 cites W2061063686 @default.
- W2037706908 cites W2063265655 @default.
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- W2037706908 cites W2166632770 @default.
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- W2037706908 doi "https://doi.org/10.1016/j.gca.2003.09.017" @default.
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