Abstract
From new field and single zircon geochronological data, we reinterpret the structure of the Canigou orthogneisses (Eastern Pyrenees) as an Early Ordovician rapakivi granite laccolith. This laccolith is surrounded by a contact metamorphic aureole predating the Hercynian tectono-metamorphic events. This aureole consists of migmatites at the contact with unmelted orthogneisses, of skarns in the carbonate beds and of retrogressed Al-rich porphyroblasts over some hundred metres beyond the contact. The metallogenic activity (Fe, F) observed around the massif might be related to the laccolith emplacement.
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