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148 G. Lavecchia et al. / Tectonophysics 445 (2007) 145–167

Fig. 2. Structural map of Sicily (this map and all others in the paper are drawn in Italy Lambert Conformal Conic projection, using 13.0, 42.0, 39.0 and
45.0 as central meridian, latitude of origin and standard parallels, respectively). The various tectonic elements have been mainly derived from sheet n°
6 of the Structural Model of Italy, scale 1:500,000 (Bigi et al., 1991), integrated and updated with information from more local geological–structural
maps and specific papers (Amodio-Morelli et al., 1976; Ghisetti and Vezzani, 1984; Cristofolini et al., 1985; Locardi and Nicolich, 1988; Ben
Avraham et al., 1990; Torelli et al., 1991; Catalano et al., 1994; Lentini et al., 1994; Gamberi and Argnani, 1995; Grasso et al., 1995; Lavecchia et al.,
1995; Lentini et al., 1995; Monaco et al., 1996; Torelli et al., 1998; Lickorish et al., 1999; Nigro and Renda, 1999; Bello et al., 2000; Del Ben and
Guarnieri, 2000; Monaco and Tortorici, 2000; Monaco et al., 2000; Nicolich et al., 2000; Nigro and Renda, 2000; Pepe et al., 2000; Renda et al.,
2000; Bonardi et al., 2001; Nigro and Renda, 2001a,b; Serri et al., 2001; Guarnieri et al., 2002; Nigro and Renda, 2002; Guarnieri and Carbone, 2003;
Monaco et al., 2003; Tavarnelli et al., 2003; Catalano et al., 2004; Grasso, 2004; Guarnieri, 2004; Marani and Gamberi, 2004; Messina et al., 2004;
Patacca and Scandone, 2004).

not appear to be influenced by the presence of N–S structures (Monaco and Tortorici, 2000; Pepe et al.,
strike–slip tectonic lineaments, such as the famous 2000).
Scicli–Ragusa line in south-eastern Sicily (Azzaro et al.,
2000b; Monaco et al., 2003 and references therein), 2.2. The kinematic map and the interpretative crustal
which remain confined within the foreland terrains at sections
the footwall of the SBT. However, in western and central
Sicily, the compressional and transpressional faults are Starting from the structural map and considering the
the dominant features. In northern Sicily, in the age of the tectonic elements involved in the deforma-
Madonie–Nebrodi–Peloritani Mts. area, as well as in tion, four first-orders and several minor, southward
the Tyrrhenian offshore area, Plio-Quaternary exten- rejuvenating, compressional kinematic units (KU) were
sional structures are common and mainly characterized identified and schematized in the map of Fig. 4. The two
by north-to NW-dipping normal and normal–oblique northernmost KU (numbers 4 and 3) were involved in
faults, which dislocate the pre-existing compressional the Sicilian fold-and-thrust belt deformation during late