Differential exhumation of ultrahigh-pressure metamorphic terranes: A case study from South Altyn Tagh, western China

•The retrograde eclogite in Danshuiquan locality recorded clockwise P–T path.•The extensive HP–UHT overprint eliminated most of the peak stage records.•The eclogite was exhumed from eclogite-facies to granulite-facies within 16 Ma.•The eastern and western SAT experienced differential exhumation process.•Local mantle heating contribute to the fast exhumation in the eastern segment.