Search results for " Sedimentolog"
showing 10 items of 358 documents
PROGETTO SIRIPRO: INTERPRETAZIONE GEOLOGICA PRELIMINARE DEL PROFILO SISMICO CROSTALE
2009
La Conca d'Oro e la valle del Fiume Oreto
2018
Il percorso si svolge in territori pianeggianti e collinari attraversando, da sud a nord, la Conca d’Oro e addentrandosi nella valle del Fiume Oreto. Sarà possibile osservare aspetti stratigrafici, tettonici e geomorfologici, rappresentativi delle aree costiere e montuose della Sicilia settentrionale, che raccontano un’evoluzione geologica di oltre duecento milioni di anni. All'interno della città di Palermo saranno inoltre illustrati aspetti che riguardano i geomateriali locali, impiegati sia nella pratica edile ordinaria come nella costruzione di beni storico-monumentali, e le opere antropiche legate allo sfruttamento del sottosuolo e delle risorse geologiche in genere, evidenziando il fo…
Triassic/Jurassic carbonates from Western Sicily: their facies and implications for the end-Triassic biotic crisis.
2008
A Jurassic-Cretaceous intraplatform basin in the Panormide Southern Tethyan margin (NW Sicily, Italy), reaveled by integrating facies and structural …
2016
We illustrate the tectono-sedimentary evolution of a Jurassic-Cretaceous intraplatform basin in a fold and thrust belt present setting (Cala Rossa basin). Detailed stratigraphy and facies analysis of Upper Triassic-Eocene successions outcropping in the Palermo Mts (NW Sicily), integrated with structural analysis, restoration and basin analysis, led to recognize and describe into the intraplatform basin the proximal and distal depositional areas respect to the bordered carbonate platform sectors. Carbonate platform was characterized by a rimmed reef growing with progradational trends towards the basin, as suggested by the several reworked shallow-water materials interlayered into the deep-wa…
Gathering different marine geology data (seismics, acoustics, sedimentological) to investigate active fluid seepage (AFS) in the southern region of t…
2017
Active Fluid Seepage (AFS) at the seafloor is a global phenomenon associated with seafloor morphologies in different geodynamic contexts. Advances geophysical techniques have allowed geoscientists to characterise pockmarks, mounds and flares associated with AFS. We present a range of marine geological data acquired in the central Mediterranean Sea (northern Sicily continental margin, northwestern Sicily Channel and offshore the Maltese Islands), which allow us to identify AFSs. The AFSs are spatially distributed as clusters, aligned or isolated at different depths, ranging from few decametres offshore the Maltese Islands, up to 400 m offshore north Sicily and in the northwestern Sicily chan…
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 …