Core Formation in Vesta

Details Core Formation in Vesta Core Formation in Vesta

Jan 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996eiaf.conf...22r&link_type=abstract

Workshop on Evolution of Igneous Asteroids: Focus on Vesta and the HED Meterorites, p. 22

Astronomy and Astrophysics

Astronomy

Achondrites, Chemical Analysis, Meteoritic Composition, Vesta Asteroid, Cosmochemistry, Cores, Basalt, Silicates, Isotopes

Scientific paper

Asteroid 4 Vesta is a small object with a radius of 275 km and a central pressure of about 4 kbar. We have not conducted sample return missions to Vesta. However, recent astronomical studies of Binzel and Xu confirm earlier conclusions of Consolmagno and Drake that the howardite-eucrite-diogenite (HED) clan of meteorites are samples of Vesta. Chemical analysis of these meteorites permits the determination of the abundances of metal- seeking (siderophile) elements in their mantles. These siderophile elements may represent a chemical "fingerprint" of core formation, having been differentially extracted into Vesta's core according to their metal/silicate partitioning behavior during accretion.

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