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298 R. Catalano et al. jTectonophysics 260 ( /996) 291-323

6). These terrigenous deposits clearly exhibit affini- Trapanese, Saccense, Tunisian and Hyblean paleo-
ties to the Tunisian offshore. geographic domains, Fig. 6) which exhibit latera)
transitions between them.
In the previously mentioned areas of the Sicily
Channel no Upper Triassic or older deep basinal North and northwest of the Egadi Islands the
rocks (as suggested by Casero and Roure, 1994) can seismic characters of some of the reflectors point to
be recognized according to the published wells and the occurrence of thin bedded carbonate successions.
facies interpretation data. lnstead, deep-water sedi- The rocks recovered by a few dredge hauls and the
ments were deposited only after the Late Triassic- occurrence of Upper Triassic thin bedded deep-water
Early Liassic, filling intraplatforrn basins (e.g., the limestones nearby on the Egadi lslands suggest such
Streppenosa and Triglia well basins) ali over the a lithology for the reflecting succession. These rocks
Sicily Channel (Fig. 2). could have been deposited in a deep-water domain
(northem Marettimo basin) existing since the Late
Facies relationships point out well defined deposi-
Triassic. The basinal successions are unconforrnably
tional areas (corresponding to the Pre Panorrnide,

'Messina

o 20 km Catania
~

Legend

Plio-Pieistocene covar and volcanics

c=:J, ~::1 _l,lv

Deformed foreland deposits

CJ2 03

Main Chain

Foreland

~ THRUST

Fig. 7. Structural map of Sicily (modified from Catalano et al., 1989a and Catalano et al., 199lc in Structural Mode! of Italy, sheet 6.
Peloritani sector compiled from Amodio Morelli et al., 1976 and recent data of Nigro, 1992. Hyblean platform modified from Lentini et al.,
1991b). Key: l= Pleistocene deposits; 2 = deformed foreland basin deposits (Lower Pleistocene-Upper Pliocene); 3 = deformed foreland
basin deposits (Lower Pliocene-Upper Tortonian); 4 = deformed foreland shelf margin deposits (Middle to Lower Miocene); 5 = deformed
foreland basin flysch units (Lower Miocene- Upper Oligocene); 6 = deformed foreland basin shelf margin deposits (Lower Miocene-Upper

Oligocene); A= Calabrian tectonic units (Oiigocene-Paleozoic); B = Sicilide derived tectonic units (Oligocene-Upper Mesozoic);

C= Panormide carbonate platform-derived tectonic units (Oiigocene-Trias); D= pre-Panormide carbonate platform to basin derived
tectonic units (Oligocene-Trias); E= Imerese basin-derived tectonic units (Oligocene-Upper Mesozoic); F = Sicanian basin-derived
tectonic units (Oiigocene-Upper Mesozoic); G = Trapanese carbonate platform-derived tectonic units (Oligocene-Trias); H= Saccense
carbonate platform derived units (Oiigocene-Trias); l= Lower Permian-Middle Triassic Lercara allochthons; L= Hyblean tectonic units
(Lower Pleistocene-Trias); V= volcanics: (a) Pliocene, (b) Pleistocene.