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This paper proposes a morphoevolutionary model for western Sicily. Sicily is a chain–foredeep–foreland\udsystem\udstill being built, with tectonic activity involving uplift which tends to create new relief. To reconstruct the\udmorphoevolutionary\udmodel, geological, and geomorphological studies were done on the basis of field survey and aerial\udphotographic interpretation. The collected data show large areas characterized by specific geological, geomorphological,\udand topographical settings with rocks, landforms, and landscapes progressively older from south to north Sicily.\udThe achieved results display: (1) gradual emersion of new areas due to uplift, its interaction with the Quaternary\udglacio-\udeustatic oscillations of the sea level, and the following production of a flight of stair-steps of uplifted marine\udterraces\udin southern Sicily, which migrates progressively upward and inwards; in response to the uplift (2) triggering of\uddown-cutting processes that gradually dismantle the oldest terraces; (3) competition between uplift and down-cutting\udprocesses, which is responsible for the genesis of river valleys and isolated rounded hills in central Sicily; (4) continuous\uddeepening over time that results in the exhumation of older and more resistant rocks in northern Sicily, where the higher\udheights of Sicily are realized and the older forms are retained; (5) extensional tectonic event in the northern end of Sicily,\udthat produces the collapse of large blocks drowned in the Tyrrhenian Sea and sealed by coastal-marine deposits during\udthe Calabrian stage; (6) trigger of uplift again in the previously subsiding blocks and its interaction with coastal processes\udand sea level fluctuations, which produce successions of marine terraces during the Middle–Upper Pleistocene stages

Geomorphological evolution of western Sicily, Italy