Ancient volcanic xenon in single glass grains from the D’Orbigny angrite

Introduction: Angrites are basaltic meteorites that cooled rapidly early in the evolution of the solar system [1]. They are widely thought to be products of differentiation and partial melting [2-4], though it has been suggested that they condensed from vapor in the solar nebula [5,6]. D’Orbigny (“D’O”) is vesicular and has abundant glass [2,5-7]. This has been interpreted as volcanic and seen as further evidence for magmatism on the angrite parent body (“APB”).