Noble Gas Chronology of Erg Chech 002 Ungrouped Achondrite

Takenouchi A., Sumino H., Yamaguchi A., Barrat J. A.

84th Annual Meeting of The Meteoritical Society 2021 (abstract # 6162)


We conducted Ar-Ar analyses of recently found andesitic achondrite Erg Chech 002. The Ar-Ar age of Erg Chech 002 is 4.51 ± 0.04 Ga, which is consistent with its rapid cooling texture and silica occurrences.