Subduction-related high-pressure metamorphic rocks in the southern Urals confirm material flux was active within the subduction zone. Suprasubduction zone ophiolitic material was tectonically eroded in an intraoceanic setting, metamorphosed under mantle conditions and exhumed. With the entrance of the East European Craton into the subduction zone, the upper continental crust was removed at a shallow level, whereas middle crustal material was subducted to mantle depths, metamorphosed under eclogite facies conditions and interacted with the mantle wedge. Eclogite-bearing rocks were exhumed to an upper mantle level and juxtaposed against material that was tectonically eroded from the fore-arc region of the upper plate.

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