We reconstruct the Plio-Quaternary tectono-stratigraphic evolution in the offshore Capo Vaticano (W Calabria,Italy) by integrating data obtained from single- and multi-channel reflection seismic profiles and a reprocessed versionof the CROP M2A/III line.NW-trending, high-angle normal faults, dipping ~70° to the south-west formed along the continental slopeconnecting the south-west continental shelf of the Capo Vaticano Promontory to the Gioia Tauro Basin (Pepe et al.,2014). Faults generally have small displacements up to 40 m and are sealed by Pleistocene deposits.West of the Capo Vaticano promontory and in the Gioia Basin, a SE-dipping, normal fault system, more than 32 kmlong, is recognized. Faults affect lower (?) Pleistocene and are sealed by probably post-0.7 Ma deposits. These faults arehere tentatively interpreted as the antithetic faults of major, Late Pliocene to Quaternary, NW-dipping, normal faults,which form the currently active tectonic belt along the Calabrian Arc (e.g. Monaco and Tortorici, 2000; Faccenna et al.,2011).In the Santa Eufemia Gulf, reverse faults affecting Plio-Quaternary and older sedimentary successions are observed.Faults also offset the seafloor thus indicating their recent activity. A normal fault system has been also inferred on thebasis of the present day depth variations of the edges of submerged depositional terraces and associated abrasionplatforms, along which a vertical displacement of ~21 m during the Late Pleistocene-Holocene has been inferred.The information derived in offshore the Capo Vaticano Promontory represents an important step towards anaccurate 3-D kinematic description of the tectono-stratigraphic evolution of the western (Tyrrhenian) side of theCalabrian Arc orogenic wedge during the Plio-Quaternary.
|Numero di pagine||1|
|Stato di pubblicazione||Published - 2014|