Abstract
Abstract Zircon and monazite U-Pb ages are reported from two orthogneiss samples and one paragneiss from western Galicia. The three investigated suites of zircons reveal upper intercept ages of 2.2–2.5 Ga and lower intercept ages of about 470 Ma. The discordia pattern of the paragneiss is interpreted as resulting from lead loss of a detrital zircon suite of Early Proterozoic age: the provenance age of a
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