caa a22 4500 606149694 CHVBK 20210128100535.0 cr unu---uuuuu 210128e20150601xx s 000 0 eng 10.1007/s00531-014-1131-5 doi (NATIONALLICENCE)springer-10.1007/s00531-014-1131-5 The Early Miocene "Bisciaro volcaniclastic event” (northern Apennines, Italy): a key study for the geodynamic evolution of the central-western Mediterranean [Elektronische Daten] [Francesco Guerrera, Manuel Martín-Martín, Giuliana Raffaelli, Mario Tramontana] The Early Miocene Bisciaro Fm., a marly limestone succession cropping out widely in the Umbria-Romagna-Marche Apennines, is characterized by a high amount of volcaniclastic content, characterizing this unit as a peculiar event of the Adria Plate margin. Because of this volcaniclastic event, also recognizable in different sectors of the central-western Mediterranean chains, this formation is proposed as a "marker” for the geodynamic evolution of the area. In the Bisciaro Fm., the volcaniclastic supply starts with the "Raffaello” bed (Earliest Aquitanian) that marks the base of the formation and ends in the lower portion of the Schlier Fm. (Late Burdigalian-Langhian p.p.). Forty-one studied successions allowed the recognition of three main petrofacies: (1) Pyroclastic Deposits (volcanic materials more than 90%) including the sub-petrofacies 1A, Vitroclastic/crystallo-vitroclastic tuffs; 1B, Bentonitic deposits; and 1C, Ocraceous and blackish layers; (2) Resedimented Syn-Eruptive Volcanogenic Deposits (volcanic material 30-90%) including the sub-petrofacies 2A, High-density volcanogenic turbidites; 2B, Low-density volcanogenic turbidites; 2C, Crystal-rich volcanogenic deposits; and 2D, Glauconitic-rich volcaniclastites; (3) Mixing of Volcaniclastic Sediments with Marine Deposits (volcanic material 5-30%, mixed with marine sediments: marls, calcareous marls, and marly limestones). Coeval volcaniclastic deposits recognizable in different tectonic units of the Apennines, Maghrebian, and Betic Chains show petrofacies and chemical-geochemical features related to a similar calc-alkaline magmatism. The characterization of this event led to the hypothesis of a co-genetic relationship between volcanic activity centres (primary volcanic systems) and depositional basins (depositional processes) in the Early Miocene palaeogeographic and palaeotectonic evolution of the central-western Mediterranean region. The results support the proposal of a geodynamic model of this area that considers previously proposed interpretations. Springer-Verlag Berlin Heidelberg, 2015 Volcaniclastic event nationallicence Early Miocene nationallicence Umbria-Romagna-Marche Apennines nationallicence Stratigraphy nationallicence Petrography nationallicence Mediterranean-scale correlations nationallicence Geodynamic model nationallicence Guerrera Francesco Dipartimento di Scienze della Terra, della Vita e dell'Ambiente, (DiSTeVA), Università degli Studi di Urbino "Carlo Bo”, Campus Scientifico "Enrico Mattei'', 61029, Urbino, Italy aut Martín-Martín Manuel Departamento de Ciencias de la Tierra y del Medio Ambiente, Universidad de Alicante, Campus San Vicente, San Vicente del Respeig, AP 99, 03080, Alicante, Spain aut Raffaelli Giuliana Dipartimento di Scienze della Terra, della Vita e dell'Ambiente, (DiSTeVA), Università degli Studi di Urbino "Carlo Bo”, Campus Scientifico "Enrico Mattei'', 61029, Urbino, Italy aut Tramontana Mario Dipartimento di Scienze della Terra, della Vita e dell'Ambiente, (DiSTeVA), Università degli Studi di Urbino "Carlo Bo”, Campus Scientifico "Enrico Mattei'', 61029, Urbino, Italy aut International Journal of Earth Sciences Springer Berlin Heidelberg 104/4(2015-06-01), 1083-1106 1437-3254 104:4<1083 2015 104 531 https://doi.org/10.1007/s00531-014-1131-5 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00531-014-1131-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Guerrera Francesco Dipartimento di Scienze della Terra, della Vita e dell'Ambiente, (DiSTeVA), Università degli Studi di Urbino "Carlo Bo”, Campus Scientifico "Enrico Mattei'', 61029, Urbino, Italy aut NATIONALLICENCE 700 1- Martín-Martín Manuel Departamento de Ciencias de la Tierra y del Medio Ambiente, Universidad de Alicante, Campus San Vicente, San Vicente del Respeig, AP 99, 03080, Alicante, Spain aut NATIONALLICENCE 700 1- Raffaelli Giuliana Dipartimento di Scienze della Terra, della Vita e dell'Ambiente, (DiSTeVA), Università degli Studi di Urbino "Carlo Bo”, Campus Scientifico "Enrico Mattei'', 61029, Urbino, Italy aut NATIONALLICENCE 700 1- Tramontana Mario Dipartimento di Scienze della Terra, della Vita e dell'Ambiente, (DiSTeVA), Università degli Studi di Urbino "Carlo Bo”, Campus Scientifico "Enrico Mattei'', 61029, Urbino, Italy aut NATIONALLICENCE 773 0- International Journal of Earth Sciences Springer Berlin Heidelberg 104/4(2015-06-01), 1083-1106 1437-3254 104:4<1083 2015 104 531