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Contourite identification along Italian margins: The case of the Portofino drift (Ligurian Sea) ArchiMer
Cattaneo, Antonio; Miramontes, Elda; Samalens, Kevin; Garreau, Pierre; Caillaud, Matthieu; Marsset, Bruno; Corradi, Nicola; Migeon, Sebastien.
A brief review of the published evidence of current deposits around Italy is the occasion to test the robustness of matching bottom current velocity models and seafloor morphologies to identify contourite drifts not yet documented. We present the result of the regional hydrodynamic model MARS3D in the Northern Tyrrhenian and Ligurian Sea with horizontal resolution of 1.2 km and 60 levels with focus on bottom current: data are integrated over summer and winter 2013 as representative of low and high intensity current conditions. The Eastern Ligurian margin is impacted by the Levantine Intermediate Water (LIW) with modeled mean velocity of bottom current up to 20 cm s−1 in winter 2013 and calculated bottom shear stress exceeding 0.2 N m−2 in water depth of...
Tipo: Text Palavras-chave: Sediment drift; Circulation model; Bottom current velocity; Levantine Intermediate Water; Submarine landslide; Mediterranean.
Ano: 2017 URL: https://archimer.ifremer.fr/doc/00378/48977/49394.pdf
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