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| Micallef, Aaron; Camerlenghi, Angelo; Garcia-castellanos, Daniel; Otero, Daniel Cunarro; Gutscher, Marc-andre; Barreca, Giovanni; Spatola, Daniele; Facchin, Lorenzo; Geletti, Riccardo; Krastel, Sebastian; Gross, Felix; Urlaub, Morelia. |
| The Messinian salinity crisis (MSC) - the most abrupt, global-scale environmental change since the end of the Cretaceous - is widely associated with partial desiccation of the Mediterranean Sea. A major open question is the way normal marine conditions were abruptly restored at the end of the MSC. Here we use geological and geophysical data to identify an extensive, buried and chaotic sedimentary body deposited in the western Ionian Basin after the massive Messinian salts and before the Plio-Quaternary open-marine sedimentary sequence. We show that this body is consistent with the passage of a megaflood from the western to the eastern Mediterranean Sea via a south-eastern Sicilian gateway. Our findings provide evidence for a large amplitude drawdown in the... |
| Tipo: Text |
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| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00485/59687/62765.pdf |
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| Micallef, Aaron; Camerlenghi, Angelo; Georgiopoulou, Aggeliki; Garcia-castellanos, Daniel; Gutscher, Marc-andre; Lo Iacono, Claudio; Huvenne, Veerle A. I.; Mountjoy, Joshu J.; Paull, Charles K.; Le Bas, Timothy; Spatola, Daniele; Facchin, Lorenzo; Accettella, Daniela. |
| Carbonate escarpments are submarine limestone and dolomite cliffs that have been documented in numerous sites around the world. Their geomorphic evolution is poorly understood due to difficulties in assessing escarpment outcrops and the limited resolution achieved by geophysical techniques across their steep topographies. The geomorphic evolution of carbonate escarpments in the Mediterranean Sea has been influenced by the Messinian salinity crisis (MSC). During the MSC (5.97-533 Ma), the Mediterranean Sea became a saline basin due to a temporary restriction of the Atlantic-Mediterranean seaway, resulting in the deposition of more than one million cubic kilometres of salt. The extent and relative chronology of the evaporative drawdown phases associated to... |
| Tipo: Text |
Palavras-chave: Malta Escarpment; Geomorphic evolution; Submarine canyon; Palaeoshoreline; Sea level drawdown; Messinian salinity crisis. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00485/59686/83482.pdf |
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