6533b7ddfe1ef96bd1273f93
RESEARCH PRODUCT
Plio-Pleistocene geological evolution of the northern Sicily continental margin (southern Tyrrhenian Sea): new insights from high-resolution, multi-electrode sparker profiles
C. Lo IaconoFabrizio PepeMauro AgateA. KokD Di MaioRaimondo CatalanoAttilio Sullisubject
geographyRiftgeography.geographical_feature_categoryHigh-resolution seismic profilePleistoceneSettore GEO/02 - Geologia Stratigrafica E SedimentologicaContinental shelfNorth Sicily offshoreSequence StratigraphyPlio-PleistoceneEnvironmental Science (miscellaneous)Late MioceneGeotechnical Engineering and Engineering GeologyOceanographyNorth Sicily offshore; High-resolution seismic profiles; Cefalù basin; Sequence StratigraphyPaleontologyContinental marginCefalù basinEarth and Planetary Sciences (miscellaneous)TransgressiveGeologyHolocenedescription
High-resolution seismic profiles were acquired in the north Sicily offshore region with an innovative, multi-tip sparker array which lacks ringing and has a base frequency around 600 Hz. The new data, combined with published data, suggest that intra-slope and extensional basins formed as a consequence of the late Miocene (?)–early Pliocene shortening and thrusting, and the middle (?)–late Pliocene continental rifting affecting the internal side of the Sicilian-Maghrebian chain. Early (?) Pleistocene to Holocene high-amplitude and high-frequency sea-level changes resulted in repeated sub-aerial exposure and flooding of the shelf, and the deposition of cyclically arranged hemipelagic and shelf sediments. An uplift of the shelf could explain the non-preservation of the transgressive and of the lowstand wedge systems tracts in the oldest sequences.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2003-08-01 |