Tungsten Isotopes Provide Evidence that Core Formation in Some Asteroids Predates the Accretion of Chondrite Parent Bodies

Details Tungsten Isotopes Provide Evidence that Core Formation in Some Asteroids Predates the Accretion of Chondrite Parent Bodies Tungsten Isotopes Provide Evidence that Core Formation in Some Asteroids Predates the Accretion of Chondrite Parent Bodies

Mar 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005lpi....36.1431k&link_type=abstract

36th Annual Lunar and Planetary Science Conference, March 14-18, 2005, in League City, Texas, abstract no.1431

Physics

10

Scientific paper

W isotope data for CAIs and iron meteorites show that core formation in
some asteroids predates the formation of chondrules. We conclude that
magmatic irons derive from the oldest (i.e., first-generation)
planetesimals and that chondrites derive from second-generation
asteroids.

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