title: Maskelynite: Formation by Explosive Shock.
abstract: When high pressure (250 to 300 kilobars) was applied suddenly (shock-loading) to gabbro, the plagioclase was transformed to a noncrystalline phase (maskelynite) by a solid-state reaction at a low temperature, while the proxene remained crystalline. The shock-loaded gabbro resembles meteorites of the shergottite class; this suggests that the latter formed as a result of shock. The shock-loading of gabbro at 600 to 800 kilobars raised the temperature above the melting range of the plagioclase.
authors.forename: D J
authors.initials: DJ
authors.lastname: Milton
authors.forename: P S
authors.initials: PS
authors.lastname: de Carli