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| Registros recuperados: 14 | |
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| Frigola, J.; Canals, M.; Cacho, I.; Moreno, A.; Sierro, F. J.; Flores, J. A.; Berne, Serge; Jouet, Gwenael; Dennielou, Bernard; Herrera, G.; Pasqual, C.; Grimalt, J. O.; Galavazi, M.; Schneider, R.. |
| Borehole PRGL1-4 drilled in the upper slope of the Gulf of Lion provides an exceptional record to investigate the impact of late Pleistocene orbitally-driven glacio-eustatic sea-level oscillations on the sedimentary outbuilding of a river fed continental margin. High-resolution grain-size and geochemical records supported by oxygen isotope chronostratigraphy allow reinterpreting the last 500 ka upper slope seismostratigraphy of the Gulf of Lion. Five main sequences, stacked during the sea-level lowering phases of the last five glacial-interglacial 100-kyr cycles, form the upper stratigraphic outbuilding of the continental margin. The high sensitivity of the grain-size record down the borehole to sea-level oscillations can be explained by the great width of... |
| Tipo: Text |
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| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00088/19944/17599.pdf |
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| Rogerson, M.; Cacho, I.; Jimenez-espejo, F.; Reguera, M. I.; Sierro, F. J.; Martinez-ruiz, F.; Frigola, J.; Canals, M.. |
| The eastern Mediterranean sapropels are among the most intensively investigated phenomena in the paleoceanographic record, but relatively little has been written regarding the origin of the equivalent of the sapropels in the western Mediterranean, the organic-rich layers (ORLs). ORLs are recognized as sediment layers containing enhanced total organic carbon that extend throughout the deep basins of the western Mediterranean and are associated with enhanced total barium concentration and a reduced diversity (dysoxic but not anoxic) benthic foraminiferal assemblage. Consequently, it has been suggested that ORLs represent periods of enhanced productivity coupled with reduced deep ventilation, presumably related to increased continental runoff, in close... |
| Tipo: Text |
Palavras-chave: Sapropel; Mediterranean; Sea level; Paleoceanography; Circulation. |
| Ano: 2008 |
URL: https://archimer.ifremer.fr/doc/00237/34825/33303.pdf |
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| Crise, A.; Kaberi, H.; Ruiz, J.; Zatsepin, A.; Arashkevich, E.; Giani, M.; Karageorgis, Aristomenis; Prieto, L.; Pantazi, M.; Gonzalez-fernandez, D.; D'Alcala, M. Ribera; Tornero, V.; Vassilopoulou, V.; Durrieu De Madron, Xavier; Guieu, C.; Puig, P.; Zenetos, A.; Andral, Bruno; Angel, D.; Altukhov, D.; Ayata, S. D.; Aktan, Y.; Balcioglu, E.; Benedetti, F.; Bouchoucha, Marc; Buia, M. -c.; Cadiou, Jean-francois; Canals, M.; Chakroun, M.; Christou, E.; Christidis, M. G.; Civitarese, Giuseppe; Coatu, V.; Corsini-foka, M.; Cozzi, S.; Deidun, A.; Dell'Aquila, A.; Dogrammatzi, A.; Dumitrache, C.; Edelist, D.; Ettahiri, Omar; Fonda-umani, S.; Gana, S.; Galgani, Francois; Gasparini, S.; Giannakourou, A.; Gomoiu, M. -t.; Gubanova, A.; Gucu, Ali-cemal; Gurses, Ozgur; Hanke, G.; Hatzianestis, I.; Herutx, B.; Hone, R.; Huertas, E.; Irisson, J. -o.; Isinibilir, M.; Jimenez, J. A.; Kalogirou, S.; Kapiris, K.; Karamfilov, Ventzi; Kavadas, S.; Keskin, G.; Kideys, Ahmet; Kocak, M.; Kondylatos, G.; Kontogiannis, C.; Kosyan, R.; Koubbi, Philippe; Kuspilic, G.; La Ferla, R.; Langone, L.; Laroche, Sophie; Lazar, Luminita; Lefkaditou, E.; Lemeshko, I. E.; Machias, A.; Malej, A.; Mazzocchi, M. -g.; Medinets, Volodymyr; Mihalopoulos, N.; Miserocchi, S.; Moncheva, Snejana; Mukhanov, V.; Oaie, Gheorghe; Oros, A.; Ozturk, A. A.; Ozturk, B.; Panayotova, M.; Prospathopoulos, A.; Radu, G.; Raykov, V.; Regiero, P.; Reygondeau, G.; Rougeron, Natacha; Salihoglu, B.; Sanchez-vidal, A.; Sannino, G.; Santinelli, C.; Secrieru, D.; Shapiro, G.; Simboura, N.; Shiganova, Tamara; Sprovieri, M.; Stefanova, Kremena; Streftaris, N.; Tirelli, V.; Tom, Moshe; Topaloglu, B.; Topcu, N. E.; Tsagarakis, K.; Tsangaris, C.; Tserpes, G.; Tugrul, S.; Uysal, Z.; Vasile, Daniela; Violaki, K.; Xu, J.; Yuksek, Ahsen; Papathanassiouh, E.. |
| PERSEUS project aims to identify the most relevant pressures exerted on the ecosystems of the Southern European Seas (SES), highlighting knowledge and data gaps that endanger the achievement of SES Good Environmental Status (GES) as mandated by the Marine Strategy Framework Directive (MSFD). A complementary approach has been adopted, by a meta-analysis of existing literature on pressure/impact/knowledge gaps summarized in tables related to the MSFD descriptors, discriminating open waters from coastal areas. A comparative assessment of the Initial Assessments (IAs) for five SES countries has been also independently performed. The comparison between meta-analysis results and IAs shows similarities for coastal areas only. Major knowledge gaps have been... |
| Tipo: Text |
Palavras-chave: Marine Strategy Framework Directive; Southern European Seas; Good Environmental Status; Initial Assessment; PERSEUS project. |
| Ano: 2015 |
URL: http://archimer.ifremer.fr/doc/00273/38422/36743.pdf |
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| Pasqual, C.; Sanchez-vidal, A.; Zuniga, D.; Calafat, A.; Canals, M.; Durrieu De Madron, X.; Puig, P.; Heussner, S.; Palanques, A.; Delsaut, N.. |
| Settling particles were collected using sediment traps deployed along three transects in the Lacaze-Duthiers and Cap de Creus canyons and the adjacent southern open slope from October 2005 to October 2006. The settling material was analyzed to obtain total mass fluxes and main constituent contents (organic matter, opal, calcium carbonate, and siliciclastics). Cascades of dense shelf water from the continental shelf edge to the lower continental slope occurred from January to March 2006. They were traced through strong negative near-bottom temperature anomalies and increased current speeds, and generated two intense pulses of mass fluxes in January and March 2006. This oceanographic phenomenon appeared as the major physical forcing of settling particles at... |
| Tipo: Text |
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| Ano: 2010 |
URL: https://archimer.ifremer.fr/doc/00289/40004/38602.pdf |
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| Frigola, J.; Moreno, A.; Cacho, I.; Canals, M.; Sierro, F. J.; Flores, J. A.; Grimalt, J. O.; Hodell, D. A.; Curtis, J. H.. |
| The detailed analysis of the International Marine Past Global Changes Study core MD99-2343 recovered from a sediment drift at 2391 m water depth north of the island of Minorca illustrates the effects of climate variability on thermohaline circulation in the western Mediterranean during the last 12 kyr. Geochemical ratios associated with terrigenous input resulted in the identification of four phases representing different climatic and deepwater overturning conditions in the Western Mediterranean Basin during the Holocene. Superimposed on the general trend, eight centennial- to millennial-scale abrupt events appear consistently in both grain size and geochemical records, which supports the occurrence of episodes of deepwater overturning reinforcement in the... |
| Tipo: Text |
Palavras-chave: Holocene climate variability; Thermohaline circulation; Western Mediterranean Sea. |
| Ano: 2007 |
URL: https://archimer.ifremer.fr/doc/00233/34448/32900.pdf |
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| Sanchez-vidal, A.; Pasqual, C.; Kerherve, P.; Calafat, A.; Heussner, S.; Palanques, A.; Durrieu De Madron, X.; Canals, M.; Puig, P.. |
| During winter 2005 - 2006, particle fluxes and near-bottom currents were measured in and around the Lacaze-Duthiers and Cap de Creus submarine canyons ( western Gulf of Lion). Current anomalies show the occurrence of a major dense shelf water cascading event down to the slope, the latest recorded up to date in the area. Concomitant increased total mass fluxes highlight the ability of cascading waters to transport large amounts of coarse sediment and organic matter, which is predominantly of terrestrial origin. In addition, results reveal that the current regime and associated grain size sorting is the responsible for a geochemical gradient of settling organic particles along the slope. |
| Tipo: Text |
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| Ano: 2008 |
URL: https://archimer.ifremer.fr/doc/00289/40006/38578.pdf |
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| Stabholz, M.; Durrieu De Madron, X.; Canals, M.; Khripounoff, Alexis; Taupier-letage, Isabelle; Testor, Pierre; Heussner, S.; Kerherve, P.; Delsaut, N.; Houpert, Loic; Lastras, G.; Dennielou, Bernard. |
| The deep outer margin of the Gulf of Lions and the adjacent basin, in the western Mediterranean Sea, are regularly impacted by open-ocean convection, a major hydrodynamic event responsible for the ventilation of the deep water in the western Mediterranean Basin. However, the impact of open-ocean convection on the flux and transport of particulate matter remains poorly understood. The variability of water mass properties (i.e., temperature and salinity), currents, and particle fluxes were monitored between September 2007 and April 2009 at five instrumented mooring lines deployed between 2050 and 2350-m depth in the deepest continental margin and adjacent basin. Four of the lines followed a NW-SE transect, while the fifth one was located on a sediment wave... |
| Tipo: Text |
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| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00125/23654/21571.pdf |
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| Pusceddu, A.; Mea, M.; Canals, M.; Heussner, S.; Durrieu De Madron, X.; Sanchez-vidal, A.; Bianchelli, S.; Corinaldesi, C.; Dell'Anno, A.; Thomsen, L.; Danovaro, R.. |
| Numerous submarine canyons around the world are preferential conduits for episodic dense shelf water cascading (DSWC), which quickly modifies physical and chemical ambient conditions while transporting large amounts of material towards the base of slope and basin. Observations conducted during the last 20 yr in the Lacaze-Duthiers and Cap de Creus canyons (Gulf of Lion, NW Mediterranean Sea) report several intense DSWC events. The effects of DSWC on deep-sea ecosystems are almost unknown. To investigate the effects of these episodic events, we analysed changes in the meiofaunal biodiversity inside and outside the canyon. Sediment samples were collected at depths varying from ca. 1000 to > 2100m in May 2004 (before a major event), April 2005 (during a... |
| Tipo: Text |
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| Ano: 2013 |
URL: https://archimer.ifremer.fr/doc/00289/39997/38588.pdf |
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| Payo-payo, Marta; Silva Jacinto, Ricardo; Lastras, G.; Rabineau, Marina; Puig, P.; Martin, J.; Canals, M.; Sultan, Nabil. |
| Bottom trawling leads to recurrent sediment resuspension events over fishing grounds. Recent studies have shown how bottom trawling can drive seascape reshaping at large spatial scales and enhance sediment transport in submarine canyons, which subsequently impacts deep-sea ecosystems. Present knowledge on the transfer and accumulation of sediment flows triggered by bottom trawling is based on localized and infrequent measurements whilst a more complete picture of the process is needed. The present work focuses on the modeling of sediment transport and accumulation resulting from trawling activities in La Fonera submarine canyon, northwestern Mediterranean Sea, thus contributing to an improved assessment of trawling impacts. Based on mooring data within a... |
| Tipo: Text |
Palavras-chave: Bottom trawling; Inverse model; Modeling; Sediment transport; Submarine canyon; Turbidity currents. |
| Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00374/48549/48862.pdf |
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| Martin, J.; De Madron, X. Durrieu; Puig, P.; Bourrin, F.; Palanques, A.; Houpert, Loic; Higueras, M.; Sanchez-vidal, A.; Calafat, A. M.; Canals, M.; Heussner, S.; Delsaut, N.; Sotin, C.. |
| Cap de Creus Canyon (CCC) is known as a preferential conduit for particulate matter leaving the Gulf of Lion continental shelf towards the slope and the deep basin, particularly in winter when storms and dense shelf water cascading coalesce to enhance the seaward export of shelf waters. During the CASCADE (CAscading, Storm, Convection, Advection and Downwelling Events) cruise in March 2011, deployments of recording instruments within the canyon and vertical profiling of the water column properties were conducted to study with high spatial-temporal resolution the impact of such processes on particulate matter fluxes. In the context of a mild and wet 2010–2011 winter, no remarkable dense shelf water formation was observed. On the other hand, the... |
| Tipo: Text |
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| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00129/24024/21981.pdf |
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| Prieto, M.J.; Canals, M.; Ercilla, G.; De Batist, M.. |
| The Bransfield Basin is a young active rift basin located between the northern margin of the Antarctic Peninsula and the South Shetland Islands margin. Deception and Bridgeman Islands divide the Bransfield Basin in three subbasins, the western, central and eastern. Specific morpho-tectonic features and sediment fill differentiate each subbasin. The structure and geodynamic evolution of the Central Bransfield Basin, which is in a stage of incipient seafloor spreading, have been investigated in detail from a dense grid of single-channel seismic reflection data. The Central Bransfield Basin is dominated by two families of normal faults which are oriented northeast and northwest. The NE-trending faults define three graben systems that are roughly parallel to... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 1998 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=314 |
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| Lafuerza, S.; Frigola, J.; Canals, M.; Jouet, Gwenael; Bassetti, Maria-angela; Sultan, Nabil; Berne, Serge. |
| We show the results provided by piezocone tests in determining the stratigraphic profile and the soil classification of two drilling sites in the outer shelf and the upper slope of the Gulf of Lion, PRGL2 and PRGL1, respectively. Correlations with grain-size data indicate that sleeve friction can be used for profiling fine-grained sediments (site PRGL1), whereas cone tip resistance is the most adequate for sequences made of alternations of coarse- and fine-grained intervals (site PRGL2). Normalized cone resistance and friction ratio proved to be also appropriate for soil stratigraphy as it depicts trends in the coarse fraction of the tested soil. Silts and clays present in similar proportions at site PRGL1 responded to piezocone testing as pure clays... |
| Tipo: Text |
Palavras-chave: Gulf of Lion; Soil classification; Stratigraphy; Piezocone. |
| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/2008/publication-6121.pdf |
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| Danovaro, R.; Fanelli, E.; Canals, M.; Ciuffardi, T.; Fabri, Marie-claire; Taviani, M.; Argyrou, M.; Azzurro, E.; Bianchelli, S.; Cantafaro, A.; Carugati, L.; Corinaldesi, C.; De Haan, W.p.; Dell’anno, A.; Evans, J.; Foglini, F.; Galil, B.; Gianni, M.; Goren, M.; Greco, S.; Grimalt, J.; Güell-bujons, Q.; Jadaud, Angelique; Knittweis, L.; Lopez, J.l.; Sanchez-vidal, A.; Schembri, P.j.; Snelgrove, P.; Vaz, Sandrine; Angeletti, L.; Barsanti, M.; Borg, J.a.; Bosso, M.; Brind'Amour, Anik; Castellan, G.; Conte, F.; Delbono, I.; Galgani, Francois; Morgana, G.; Prato, S.; Schirone, A.; Soldevila, E.. |
| The Marine Strategy Framework Directive (MSFD), introduced in June 2008, was adopted to achieve a Good Environmental Status (GES) in the EU's marine waters and to protect resources of socio-economic interest. The MSFD exerts to the marine area over which a Member State exercises jurisdictional rights in accordance with the United Nations Convention on the Law of the Sea (UNCLOS), including the deep-sea waters, seafloor and sub-seafloor of the Exclusive Economic Zones (EEZ). However, currently the MSFD focuses on coastal habitats and the shallow-water seafloor to the detriment of the deeper habitats. Despite the huge dimension of the deep sea (below 200 m of depth) covering more than 65% of the Earth's surface and including >95% of the global biosphere,... |
| Tipo: Text |
Palavras-chave: Marine strategy framework directive; Deep-sea ecosystems; Mediterranean basin. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00609/72110/73206.pdf |
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| Registros recuperados: 14 | |
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