U-Pb, Hf isotope and REE constraints on high-pressure acid migmatites from the Cabo Ortegal Complex (NW Spain): New evidence of short-duration metamorphism in a Variscan subduction channel

Paired LA-ICP-MS UPb and LuHf isotopic data and trace element data are reported on zircon in thin section from poorly known acid migmatites exposed in the Cabo Ortegal Complex, Western Variscides, NW Spain. The migmatites are part of the high-pressure granulite unit, tectonically placed between the eclogite and ultramafic units. Large oscillatory zoned zircon cores date the felsic igneous protolith at 459 ± 7 Ma as a minimum age reflecting a...