title: Late-Proterozoic to Paleozoic history of the peri-Gondwana Calabria-Peloritani Terrane inferred from a review of zircon chronology.
abstract: U-Pb analyses of zircon from ten samples of augen gneisses, eight mafic and intermediate metaigneous rocks and six metasediments from some tectonic domains along the Calabria-Peloritani Terrane (Southern Italy) contribute to knowledge of peri-Gondwanan evolution from Late-Proterozoic to Paleozoic times. All samples were equilibrated under amphibolite to granulite facies metamorphism during the Variscan orogeny. The zircon grains of all considered samples preserve a Proterozoic memory suggestive of detrital, metamorphic and igneous origin. The available data fit a frame involving: (1) Neoproterozoic detrital input from cratonic areas of Gondwana; (2) Pan-African/Cadomian assemblage of blocks derived from East and West African Craton; (3) metamorphism and bimodal magmatism between 535 and 579 Ma, within an active margin setting; (4) rifting and opening of Ordovician basins fed by detrital input from the assembled Cadomian blocks. The Paleozoic basins evolved through sedimentation, metamorphism and magmatism during the Variscan orogeny involving Palaeozoic and pre-Paleozoic blocks. The Proterozoic zircon records decidedly decrease in the high grade metamorphic rocks affected by Variscan pervasive partial melting.
authors.affiliation: Department of Earth and Geoenvironmental Science, University of Bari, Via E. Orabona 4, 70125 Bari, Italy.
authors.forename: Annamaria
authors.initials: A
authors.lastname: Fornelli
authors.affiliation: Department of Earth and Geoenvironmental Science, University of Bari, Via E. Orabona 4, 70125 Bari, Italy.
authors.forename: Francesca
authors.initials: F
authors.lastname: Micheletti
authors.affiliation: Department of Earth and Geoenvironmental Science, University of Bari, Via E. Orabona 4, 70125 Bari, Italy.
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Piccarreta
keywords: Calabria–Peloritani Terrane; Detrital provenance; Pre-Cambrian to Permian tectonothermal events; U–Pb zircon ages