1-s2.0-S0012821X17300353-gr006.sml
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Fig. 6. Fractionation of ratios of Pt and Pd with Ir in different groups of shergottites. The strong fractionation of Pd/Ir and Pt/Ir by three orders of magnitude, but limited fractionation of Pt/Pd indicates sulfide-undersaturated magmatic evolution (a). Lherzolitic shergottites have Pt/Pd similar to CI chondrites, whereas olivine-phyric and basaltic shergottites display a mean Pt/Pd of 0.84, which is slightly lower than the value of CI chondrites (a). Pd/Pt ratios show limited variations of less than a factor of 3 in depleted, intermediate and enriched shergottites (b). Data from Brandon et al. (2012).
提供机构：
TRR170-DB
创建时间：
2021-08-05
