The Fayalite Content of Chondritic Olivine: Obstacle to Understanding the Condensation of Rocky Material

@inproceedings{Fedkin2006TheFC,
  title={The Fayalite Content of Chondritic Olivine: Obstacle to Understanding the Condensation of Rocky Material},
  author={Alexei V. Fedkin and Lawrence Grossman},
  year={2006}
}
Solar gas is too reducing for the equilibrium XFa in condensate olivine to reach the minimum XFa of the precursors of chondrules in unequilibrated ordinary chondrites (UOCs), 0.145, at temperatures above those where Fe-Mg interdiffusion in olivine stops. Vaporization of a region enriched in dust relative to gas compared to solar composition yields higher fO2, and condensate grains with higher equilibrium XFa, than in a solar gas at the same temperature. Only dust enrichment factors near the… CONTINUE READING

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