Narrow-ring accretion models for terrestrial planets cannot reproduce bulk silicate Earth composition because embryos mix reduced and oxidized planetesimals early, requiring segregated reservoirs and late oxidized delivery.
Nature Astronomy 6, 72–79
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Disk formation simulations reproduce carbonaceous chondrule oxygen isotopes with moderate radial infall or ice-depleted parental clouds, but ordinary chondrules inside the snow line remain difficult to explain under the modeled conditions.
citing papers explorer
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Oxidation Constraints on Terrestrial Planet Formation from a Ring
Narrow-ring accretion models for terrestrial planets cannot reproduce bulk silicate Earth composition because embryos mix reduced and oxidized planetesimals early, requiring segregated reservoirs and late oxidized delivery.
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Oxygen Isotopic Compositions of Chondrules as Probes of Solar Protoplanetary Disk Formation
Disk formation simulations reproduce carbonaceous chondrule oxygen isotopes with moderate radial infall or ice-depleted parental clouds, but ordinary chondrules inside the snow line remain difficult to explain under the modeled conditions.