39Ar-40Ar Ages of Eucrites and the Thermal History of Asteroid 4-Vesta

Details 39Ar-40Ar Ages of Eucrites and the Thermal History of Asteroid 4-Vesta 39Ar-40Ar Ages of Eucrites and the Thermal History of Asteroid 4-Vesta

Mar 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003lpi....34.1068b&link_type=abstract

34th Annual Lunar and Planetary Science Conference, March 17-21, 2003, League City, Texas, abstract no.1068

Physics

Scientific paper

New 39Ar-40Ar ages of several cumulate and unbrecciated eucrites cluster
at ~4.48 Gyr, unlike some previously reported Pb-Pb and Sm-Nd ages. This
time may date a very large cratering event on Vesta, which interrupted
internal metamorphism.

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