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| Titel |
A New (Old?) Paradigm for Core Formation and Composition |
| VerfasserIn |
James Badro, Alexandre Corgne, Julien Siebert |
| Konferenz |
EGU General Assembly 2010
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 12 (2010) |
| Datensatznummer |
250038273
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| Zusammenfassung |
| We will present a new model for core formation at 60 GPa and 3300-3500 degrees; the composition of the core satisfies (i) the density requirement from seismology, (ii) the siderophile trace element concentration of the present-day mantle, and (iii) a present-day equilibrium at the CMB with the mantle. The model is based on a global treatment of metal-silicate equilibrium data, on the effect of light elements, and on the effect of the spin transitions on the partitioning of iron in lower-mantle phases. |
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