26Al Chronology of Erg Chech 002, the Oldest Andesite in the Solar System

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M. Chaussidon, Barrat J. A., Yamaguchi A., Beck P., Villeneuve J. et al.

52nd Lunar and Planetary Science Conference (2021), Abstract #2222

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“26Al chronology shows that the Erg Chech 002 meteorite of andesitic composition is the oldest known differentiated crust of a protoplanet, and that it formed contemporaneously with the formation of the cores in the parent bodies of magmatic iron meteorites.”

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