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Keyword
Sediment acoustics
28 record(s)
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Salt deformation and sub-salt fluid circulation in the Algero-Balearic abyssal plain(SALTFLU): 1) To identify the three dimensional structure of the salt deformation structures of the Algero-Balearic abyssal plain;2) to collect evidence of fluid migration, accumulation and extrusion at the seafloor; 3) to constrain the link between the observed overburden fluid circulation and deep (sub-salt) origins; 4) to link the fluid circulation pattern to the recent basin evolution with special regard to the tectonic stress propagation derived from convergence between the Africa and European plates.
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Habitat mapping and geomorphological description of Menorca Island East shelf.
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MAO1407 Second survey of Mahón continental shelf. Before the dradge action of Mahón harbour a first survey using multibeam echosounder was conducted in january 2014 in order to the map the benthic habitats that could be affected. In this new survey the aim is to determinate the extension and impact that dradge debries has caused in the seabed using geophisical techniques. Multibeam echosounder and parametric subottom profailer had been used in the area. Data gatered will show the extend and thickness of dradge debries.
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1. To obtain estimates of Nephrops burrows densities in the Gulf of Cádiz from a randomized isometric grid of UWTV stations spacing 4 nautical miles using the underwater images. 2. To define the Nephrops distribution in the Gulf of Cádiz 3. To obtain density estimates of megafauna species and the occurrence of trawl marks on the sea bed 4. To measure oceanographic variables using a sledge mounted CTD 5. To prospect circalittoral and bathyal areas witihout trawling activity 6. Sea bed morphological and backscatter analyses
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The objectives of the DETSUFA cruise (BIO Hespérides 04/03–17/03/2013) are (1) to evaluate the footprint in the seafloor of a series of earthquake-generated subaerial landslides that took place in Fiordo de Aysén, Chile, in 2007, which entered the seawater generating a number of destructive tsunamis which killed 10 and produced significant damage in the local infrastructure, (2) to reconstruct the morphology and dynamics of these landslides in order to obtain input data for tsunami modelling, and (3) to determine the occurrence of similar episodes in the past that might have generated other tsunamis, in order to establish a possible recurrence period of such events. The cruise fits within the global scientific interest stirred up by tsunamis in general, being the Fiordo de Aysén a highly relevant analogue for the understanding of this kind of events occurring in semi-enclosed basins such as fjords, lakes or water dams, which often harbour large human population and infrastructures.
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Investigate the deep crustal structure of the Alboran sea
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Investigate the Spanish Continental Shelf West Off Canary Island
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Investigate the deep crustal structure of the Alboran sea
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Seamount evolution related to tectonics and influence on recent sedimentary systems
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Investigate the deep crustal structure of the Alboran sea