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 language | English |
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Pages (from-to) | 38-48 |
Number of pages | 11 |
Journal | Earth and Planetary Science Letters |
Volume | 379 |
DOIs | |
Publication status | Published - 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