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  • E-Letter
  • Open Access

Widespread magmatic activities on the angrite parent body at 4562 Ma ago

Earth, Planets and Space201457:BF03351858

https://doi.org/10.1186/BF03351858

  • Received: 18 May 2005
  • Accepted: 27 July 2005
  • Published:

Abstract

Mn-Cr chronology of four quenched angrites showed that they formed nearly at the same time (4562 Ma) on the surface of the parent-body. Based on the chemical compositions, the cosmic ray exposure ages, and considerations on the thermal history of an achondrite parent-body, we suggest that the four angrites formed on top of a shallow magma ocean on the angrite parent body.

Key words

  • Age
  • angrites
  • Mn-Cr dating
  • SIMS

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