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Bache, Francois; Popescu, Speranta-maria; Rabineau, Marina; Gorini, Christian; Suc, Jean-pierre; Clauzon, Georges; Olivet, Jean-louis; Rubino, Jean-loup; Melinte-dobrinescu, Mihaela Carmen; Estrada, Ferran; Londeix, Laurent; Armijo, Rolando; Meyer, Bertrand; Jolivet, Laurent; Jouannic, Gwenael; Leroux, Estelle; Aslanian, Daniel; Dos Reis, Antonio Tadeu; Mocochain, Ludovic; Dumurdzanov, Nikola; Zagorchev, Ivan; Lesic, Vesna; Tomic, Dragana; Cagatay, M. Namik; Brun, Jean_pierre; Sokoutis, Dimitrios; Csato, Istvan; Ucarkus, Gulsen; Cakir, Ziyadin. |
The Messinian Salinity Crisis is well known to have resulted from a significant drop of the Mediterranean sea level. Considering both onshore and offshore observations, the subsequent reflooding is generally thought to have been very sudden. We present here offshore seismic evidence from the Gulf of Lions and re-visited onshore data from Italy and Turkey that lead to a new concept of a two-step reflooding of the Mediterranean Basin after the Messinian Salinity Crisis. The refilling was first moderate and relatively slow accompanied by transgressive ravinement, and later on very rapid, preserving the subaerial Messinian Erosional Surface. The amplitude of these two successive rises of sea level has been estimated at =500 similar to m for the first rise and... |
Tipo: Text |
Palavras-chave: Paleo environmental changes; Miocene pliocene boundary; Section marche province; Earliest zanclean age; Desiccated deep basin; Di tetto formations; Northern apennines; Southern France; Decic basin; Depositional environments. |
Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00076/18774/16490.pdf |
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Bache, Francois; Gargani, Julien; Suc, Jean-pierre; Gorini, Christian; Rabineau, Marina; Popescu, Speranta-maria; Leroux, Estelle; Do Couto, Damien; Jouannic, Gwenael; Rubino, Jean-loup; Olivet, Jean-louis; Clauzon, Georges; Dos Reis, Antonio Tadeu; Aslanian, Daniel. |
The Messinian Salinity Crisis resulted from desiccation of the Mediterranean Sea after its isolation from the Atlantic Ocean at the end of the Miocene. Stratal geometry tied to borehole data in the Gulf of Lions show that the pre-crisis continental shelf has been eroded during a major sea-level fall and that sediments from this erosion have been deposited in the basin. This detrital package is onlapped by high amplitude seismic reflectors overlain by the “Messinian Salt” and the “Upper Evaporites”. Towards the shelf, the transition between regressive deposits and overlying onlapping sediments is characterised by a wave-ravinement surface, suggesting that a significant part of the onlapping reflectors and overlying Messinian Evaporites were deposited during... |
Tipo: Text |
Palavras-chave: Messinian; Mediterranean; Gulf of Lions; Seismic stratigraphy; Evaporites. |
Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00248/35887/34408.pdf |
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