Experimental evidence for Mo isotope fractionation between metal and silicate liquids

Remco C. Hin*, Christoph Burkhardt, Max W. Schmidt, Bernard Bourdon, Thorsten Kleine

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

40 Citations (Scopus)

Abstract

Stable isotope fractionation of siderophile elements may inform on the conditions and chemical consequences of core-mantle differentiation in planetary objects. The extent to which Mo isotopes fractionate during such metal-silicate segregation, however, is so far unexplored. We have therefore investigated equilibrium fractionation of Mo isotopes between liquid metal and liquid silicate to evaluate the potential of Mo isotopes as a new tool to study core formation. We have performed experiments at 1400 and 1600 degrees C in a centrifuging piston cylinder. Tin was used to lower the melting temperature of the Fe-based metal alloys to

Original languageEnglish
Pages (from-to)38-48
Number of pages11
JournalEarth and Planetary Science Letters
Volume379
DOIs
Publication statusPublished - 1 Oct 2013

Keywords

  • Mo isotopes
  • metal-silicate experiments
  • stable isotope fractionation
  • core formation
  • CORE FORMATION
  • OXYGEN FUGACITY
  • SIDEROPHILE ELEMENTS
  • MELT COMPOSITION
  • HIGH-PRESSURE
  • SOLAR NEBULA
  • EARTHS CORE
  • TEMPERATURE
  • MOLYBDENUM
  • ACCRETION

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