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This paper presents the results of research carried out on the paleogeographic and geodynamic post-collisional evolution of the peri-Tyrrhenian area from the Southern Alps to Sicily.

During this post-collisional evolution a back arc area-thrust belt-foredeep system developed, in which the following tectono-sedimentary zones can be distinguished, from the external to the internal ones: the foreland zone, connected to the foredeep through a slope generally controlled by normal faults; the foredeep, an assymmetric depression with strong subsidence, related to the compressional activity of the thrust zone; the chain, whose outward migration from the late Oligocene onward was discontinuus, with important stages of crisis partially connected to the mechanical response of different crustal thicknesses existing in the foreland; the discontinuous satellite basins, developed within the thrust belt; the back arc basins, developed …