Early planetesimal melting from an age of 4.5662 Gyr for differentiated meteorites

@article{Baker2005EarlyPM,
  title={Early planetesimal melting from an age of 4.5662 Gyr for differentiated meteorites},
  author={Joel A. Baker and Martin Bizzarro and Nadine Wittig and James N. Connelly and Henning Haack},
  journal={Nature},
  year={2005},
  volume={436},
  pages={1127-1131}
}
Long- and short-lived radioactive isotopes and their daughter products in meteorites are chronometers that can test models for Solar System formation. Differentiated meteorites come from parent bodies that were once molten and separated into metal cores and silicate mantles. Mineral ages for these meteorites, however, are typically younger than age constraints for planetesimal differentiation. Such young ages indicate that the energy required to melt their parent bodies could not have come from… 
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