Permian Syn-Extensional Barrovian Metamorphism in the Envelope of a Migmatite Dome of the Mongolian Altai – Petrostructural and Geochronological Arguments

Petrochronology demonstrates that Barrovian metamorphism around a Permian metamorphic core complex in the Mongolian Altai, previously considered a signature of crustal thickening, was instead produced during crustal thinning.