Sin-depositional emplacement of the Liguride allochthon in the Miocene foredeep of the Western Romagna Apennines (Italy)

In Western Romagna, a segment of the “Sillaro Line” has been mapped in detail. The stratigraphic and tectonic analyses of field data have been framed in a regional-scale study of the tectono-sedimentary relationships, the structural styles and the deformation chronology of the Romagna Apennines. The sin-depositional trajectory of the Liguride overthrust has been reconstructed by retro-deformation, and a specific stratigraphic scheme has been elaborated for the Visignano slump-olistostrome. The conclusive interpretations have been summarized in an evolutionary picture of the Liguride overthrust, which correlates the emplacement, the re-mobilization and the tectonic displacement of the main submarine landslides with the allochthon advancement into the middle Miocene Apennine foredeep.