Dating the First Stage of Planet Formation

Details Dating the First Stage of Planet Formation Dating the First Stage of Planet Formation

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007apj...671l.181m&link_type=abstract

The Astrophysical Journal, Volume 671, Issue 2, pp. L181-L183.

Astronomy and Astrophysics

Astronomy

20

Astrochemistry, Minor Planets, Asteroids, Nuclear Reactions, Nucleosynthesis, Abundances, Stars: Planetary Systems: Protoplanetary Disks, Solar System: Formation

Scientific paper

The 53Mn-53Cr chronometer applied to bulk carbonaceous chondrites constrains the solar nebula volatile element fractionation, chondrule formation, and stage I planetary accretion timescale to within +0.91 to -1.17 Myr at 4568 Myr ago. The difference between the initial 53Cr/ 52Cr ratio of ordinary chondrites, defined by Chainpur (LL3.4) chondrules, and carbonaeous chondrites suggests that the former is coming from an isotopically evolved reservoir.

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