GONDWANA 15 North meets South NORTH mee ts NDWANA 15 O G SOUTH MADRID 2014 ABSTRACTS BOOK 14-18 July 2014, Madrid (Spain) GONDWANA 15 North meets South Madrid (Spain) 14-18 July, 2014 COORDINATORS César Casquet Universidad Complutense de Madrid Instituto de Geociencias (CSIC-UCM), SPAIN Juan Carlos Gutiérrez-Marco Instituto de Geociencias (CSIC-UCM), SPAIN Javier Fernández-Suárez Universidad Complutense de Madrid Instituto de Geociencias (CSIC-UCM), SPAIN EDITORS Robert J. Pankhurst (BGS, UK) Pedro Castiñeiras (UCM, SPAIN) Sonia Sánchez Martínez (UCM, SPAIN) Meeting venue Superior Technical School of Mines i Gondwana15 Stratigraphic update of the Paleozoic succession of the Peloritani Mountains, north-eastern Sicily, southern Italy P. Navas-Parejo1,2, R. Rodríguez-Cañero2, R. Somma3, A. Martín-Algarra2 and V. Perrone4 Estación Regional del Noroeste, Instituto de Geología UNAM, Apartado Postal 1039, 83240 Hermosillo, Mexico. Departamento de Estratigrafía y Paleontología, Universidad de Granada, 18071 Granada, Spain. 3 Dipartimento di Scienze dell’Ambiente, della Sicurezza, del Territorio, degli Alimenti e della Salute (S.A.S.T.A.S.), Università di Messina, Sant’Agata, 98166 Messina, Italy. 4 Dipartimento di Scienze della Terra, della Vita e dell’Ambiente, Università di Urbino, 61029 Urbino, Italy. 1 2 Rodríguez-Cañero, R., Navas-Parejo, P., Somma, R., Martín-Algarra, A., Perrone, V., 2013. First finding of upper Silurian and Lower Devonian conodonts from the Peloritani Mountains (NE Sicily, southern Italy). Bollettino della Società Paleontologica Italiana 52, 1-9. Somma, R., Navas-Parejo, P., Martín-Algarra, A., Rodríguez-Cañero, R., Perrone, V., Martínez-Pérez, C., 2013. Paleozoic stratigraphy of the Longi-Taormina Unit (Peloritanian Mountains, southern Italy). Stratigraphy 10, 1-26. Project CGL2012-32179 and Research group RNM-208 (JA) 119 North meets South Lithostratigraphic analyses on the mildly metamorphosed Paleozoic succession of the LongiTaormina Unit (Peloritani Mountains, north-eastern Sicily) have been integrated with conodont biostratigraphic data, providing new constraints on the stratigraphy of the Calabria-Peloritani terrane of southern Italy. The studied succession consists, from base to top, of the following formations: - Castelmola Formation of siliciclastic deposits including calc-alkaline volcanites (porphyroids), determined as early Silurian by U-Pb SHRIMP dating of zircon (see Martín-Algarra et al., this symposium); - Lower Pizzo Leo Formation (Silurian) composed of siliciclastic deposits with alkaline volcanic rocks (metabasites) and lenses of nodular limestone in the upper part; - Upper Pizzo Leo Formation (upper Silurian–Lower Devonian) formed by calc-schists, metamarls, and meta-limestones with minor metapelites. The oldest and youngest conodont associations are found within the carbonates of the Upper Pizzo Leo Formation and point to late Silurian and Early Devonian ages, respectively. The oldest, obtained from nodular limestones, belong to the Ludlow (ploeckensis - siluricus zones; Rodríguez-Cañero et al., 2013). The youngest fauna, found in calc-schists, belong to the Emsian (kitabicus, excavatus, and nothoperbonus-inversus zones; Somma et al., 2013). The existence of younger Devonian beds reported in previous studies could not be confirmed. The stratigraphic succession of the Longi-Taormina Unit ends with lower Carboniferous (?) lydites topped by Carboniferous ?Culm-like siliciclastic rocks. From the environmental point of view, a sharp transition from siliciclastic to carbonate facies occurred during the late Silurian, within a general upwards-deepening trend from the Ordovician(?)–Silurian to the early Carboniferous. The studied Paleozoic succession, being analogous to others better known in Calabria (Stilo Unit), SW Sardinia, the Carnic Alps, the Betic-Rif cordillera, and eastern Pyrenees, presumably formed near the western end of Paleotethys and in its northern margin.
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