Search results for "GRAFICA"
showing 10 items of 553 documents
Mesozoic tectonics and volcanism from Tethyan rifted continental margins in western Sicily
2009
Tectonic and volcanic features from the Jurassic-Cretaceous carbonate successions of Rocca Busambra, Balatelle Mount and Vicari-Roccapalumba (central-western Sicily), are here described. These areas represent the easternmost outcrops of the Trapanese domain in Sicily. The Trapanese succession consists of shallow to deep-water Meso-Cenozoic deposits formed in a carbonate platform to pelagic plateau depositional setting. Detailed field work and structural analysis detected indicate the occurrence of paleofaults with different orientation, unconformity surfaces, lateral facies changes, resedimented materials and volcanic products (pillow lavas and tuffitic deposits). These data combined with f…
Revised timing and evolution of the Messinian Salinity Crisis in the Mediterranean area
2004
New insights on the onset of the Messinian salinity crisis in Cyprus (East Mediterranean)
2006
Paleoenvironmental changes during the calcare di base deposition a prelude to the Messinian salinity crisis.
2006
Seismostratigraphic reconstruction of the Messinian palaeotopography across the Northern Sicily Continental Margin (NSCM) and an overlying Zanclean m…
2018
During the Messinian salinity crisis (MSC) (from 5.97 to 5.33 Ma), the Mediterranean Sea became disconnected from the world’s oceans and a fast and continuous evaporation resulted in its partial desiccation. One of the theories for the end of the MSC postulates that a large volume of Atlantic waters entered the Mediterranean Sea through the Gibraltar Strait and rapidly refilled the Mediterranean basin in an event welldocumented known as the Zanclean Flood. The pathway of the Zanclean flood during its passage from the western to the eastern Mediterranean Sea is unclear. The aim of this study is to understand the effects of the Messinian palaeotopography of the southern Tyrrhenian Sea on the …
The end of the Messinian salinity crisis: new insights from the Chelif Basin (Algeria)
2006
ORIGIN AND EVOLUTION OF THE MESSINIAN BASINS DEVELOPED ON TOP OF THE SICILIAN FOLD AND THRUST BELT
2016
During the Messinian the inherited paleo-topography conditioned the depositional environments of the Mediterranean region, already strongly influenced by the effects of the salinity crisis, mainly in the central region, where seabed at that time is expected to be very uneven and shallower than Western and Eastern Mediterranean. Indeed in this area as from 15 Ma the Sicilian Fold and Thrust Belt (SFTB) was originating, characterized by a multi-stage evolution: two main shortening events generated and developed at different structural levels (shallow- and deep-seated thrusts in thin-skinned thrust-model) and at different time intervals, involving mainly the Meso-Cenozoic carbonate units of th…
Evoluzione recente della linea di costa nel golfo di Palermo
2008
Evidences of mud volcanoes in the Palermo and Termini Gulf (N Sicily offshore)
2009
The occurrence of mud volcanoes and mud domes is, for the first time, documented in the continental shelf and upper slope of the Palermo and Termini Gulf (north Sicily offshore region). The study area belongs to the northern Sicily continental margin (southern Tyrrhenian Sea). Along this margin, morphology of the high-gradient continental slope is irregular due to the presence of structural highs, slope failures and canyons, and is interrupted by a flat area at a depth of 1,500 m. Mud volcano activity generally formed in areas characterised by high sedimentation rates and/or as consequences of regional tectonics (often compressional), overpressure in the sediments and gas generated at diffe…