Stratigraphic record of crustal-scale tectonics in the quaternary of the northern Apennines (Italy)

Abstract

Detailed analyses of seismic stratigraphie packages in Northern Apennines related sedimentary basins (Po Plain foredeep and western Tuscany grabens) allowed to work out a chronological scheme of defor-mational events. On a regional scale two main regimes can be identified: a) dominant horizontal motion until the early Pliocene, and b) prevailing vertical motion in the late Pleistocene. This evolution could be accounted for by a vertical detachment, and perhaps slab break off, of the subducted Adriatic continental lithosphere underneath Tuscany.