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Gravity-Driven Deposits in an Active Margin (Ionian Sea) Over the Last 330,000 Years 5
Kong, Eleonore; Zaragosi, Sebastien; Schneider, Jean-luc; Garlan, Thierry; Bachelery, Patrick; Sabine, Marjolaine; San Pedro, Laurine.
In the Ionian Sea, the subduction of the Nubia plate underneath the Eurasia plate leads to an important sediment remobilization on the Calabrian Arc and the Mediterranean Ridge. These events are often associated with earthquakes and tsunamis. In this study, we analyze gravity-driven deposits in order to establish their recurrence time on the Calabrian Arc and the western Mediterranean Ridge. Four gravity cores collected on ridges and slope basins of accretionary prisms record turbidites, megaturbidites, slumping and micro-faults over the last 330,000 years. These turbidites were dated by correlation with a hemipelagic core with a multi-proxy approach: radiometric dating, 18O, b* colour curve, sapropels and tephrochronology. The origin of the gravity-driven...
Tipo: Text Palavras-chave: Ionian Sea; Accretionary wedges; Palaeoearthquakes; Etna volcanism; Natural hazard; Turbidites.
Ano: 2017 URL: https://archimer.ifremer.fr/doc/00638/75012/75691.pdf
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