Anatectic reworking and differentiation of continental crust along the active margin of Gondwana: A zircon Hf-O perspective from West Antarctica

Abstract

The Fosdick migmatite-granite complex of West Antarctica preserves evidence of two crustal differentiation events along a segment of the former active margin of Gondwana, one in the Devonian-Carboniferous and another in the Cretaceous. The Hf-O isotope co