LAFUERZA , Sara

The equatorial Atlantic margin to the north of the Amazon is strongly affected by gravi- tational processes presenting all forms of rupture of submarine slopes, representing a major geological hazard. The potential causal factors of these underwater landslides were studied from the integration of marine geophysical data (sediment sounder) and...

Fluid migration in sedimentary basins has profound effects on a range of geological processes, including the methane cycle, tectonic and sedimentary geohazards, and microbial communities in the oceans. The Alboran Sea is a tectonically active basin characterized by contourite drifts that host migrating fluids, expressed in places by pockmarks...

Le mouvement des fluides dans les bassins sédimentaires est associé à une série de processus géologiques, notamment le cycle du méthane, les géorisques tectoniques et sédimentaires et les communautés microbiennes du sous-sol. La mer d'Alboran, dans la partie occidentale de la Méditerranée, est connue pour être un bassin tectoniquement actif,...

The Alboran Sea (Western Mediterranean) is a relatively small ocean basin connected with the Atlantic that provides a rich archive of tectonic and sedimentary processes at distinct temporal and spatial scales during the Quaternary. Since the collisional boundary of the Eurasia-Nubia plates crosses the Alboran Sea, this basin is also the locus...

In the southern margin of the Alboran Sea, the sedimentary succession over the past 1 Myr contains several submarine landslides. We observe that their geographical distribution does not appear to be related to the active Al Idrissi fault system (AIFS) responsible of the recent earthquakes (i.e. they are located more than 10 km away). The head...

La campagne SEAGAL est demandée sur la marge nilotique à bord du NO Marion Dufresne par l'UMR Géoazur en collaboration avec des partenaires français (Universités de Nice Sophia Antipolis, UPMC et Université Bordeaux1, Ifremer), Brésiliens (PUCRS-IPR), Allemands (Jacobs University Bremen), Italiens (OGS) et Egyptiens (Université d'Alexandrie)....