Two-stage growth of the Calabrian accretionary wedge in the Ionian Sea (Central Mediterranean): Constraints from depth‐migrated multichannel seismic data

Propagation of a lithospheric tear fault (STEP) through the western boundary of the Calabrian accretionary wedge offshore eastern Sicily (Southern Italy)

“…Note that the stratigraphy shown is the original interpretation and these are presented for this study at the same vertical scale in depth. Map inset shows the position of the seismic lines already published and used in this study (CROP-M3 in (Polonia et al, 2011), , ION-1 in (Cernobori et al, 1996;Nicolich et al, 2000), and Arc-19 (Gallais et al, 2012)). with previous seismic studies (fault F6 in Nicolich et al, 2000) and extended to the south by our study.…”

The Ionian and Alfeo–Etna fault zones: New segments of an evolving plate boundary in the central Mediterranean Sea?

“…The Africa/Eurasia plate convergence and slab rollback in the Tyrrhenian/Calabrian region generated a 10-30 km thick, 300 km wide subduction system, which encompasses a sub-aerial complex constituted by crystalline rocks and Meso-Cenozoic sedimentary units (Amodio- Morelli et al, 1976) overlaid by a submarine accretionary wedge (Cernobori et al, 1996;Doglioni et al, 1999;Minelli and Faccenna, 2010;Polonia et al, 2011;Gallais et al, 2012).…”

Geometry of the Deep Calabrian Subduction (Central Mediterranean Sea) From Wide‐Angle Seismic Data and 3‐D Gravity Modeling

“…In both cases wide-angle seismic studies have concluded that the downgoing lithosphere is most likely oceanic in nature and of Jurassic age (Sallarès et al, 2011;Dellong et al, 2018). Both subduction systems are characterized by extremely wide (~200 km downdip direction) accretionary wedge complexes, with very shallow surface angles and thus narrow tapers (Dellong et al, 2018;Gallais et al, 2012;Gutscher et al, 2002Gutscher et al, , 2009Gutscher et al, , 2012Gutscher et al, 2017). There is a broad consensus that apart from their large-scale morphotectonic similarities, both subductions formed through rollback of narrow slabs over the past 5-10 million yr (Chertova et al, 2014;Faccenna et al, 2004;Gutscher et al, 2002;Gutscher et al, 2017;Palano et al, 2017;van Hinsbergen et al, 2014).…”