Magnesium Isotopic Compositions of Igneous CAIs in the CR Carbonaceous Chondrites: Evidence for an Early and Late-stage Melting of CAIs

Details Magnesium Isotopic Compositions of Igneous CAIs in the CR Carbonaceous Chondrites: Evidence for an Early and Late-stage Melting of CAIs Magnesium Isotopic Compositions of Igneous CAIs in the CR Carbonaceous Chondrites: Evidence for an Early and Late-stage Melting of CAIs

Mar 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004lpi....35.2124h&link_type=abstract

35th Lunar and Planetary Science Conference, March 15-19, 2004, League City, Texas, abstract no.2124

Physics

1

Scientific paper

We have demonstrated that ^16O-rich, igneous CAIs in CR chondrites are
also ^26Al-rich, whereas ^16O-poor igneous CAIs are ^26Al poor. This
difference suggests the ^16O-rich, igneous CAIs are contemporaneous with
non-igneous inclusions, while ^16O-poor igneous CAIs formed ~2 Ma later.

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