Nepheloid structure and hydrographic control on the Barcelona continental margin, northwestern Mediterranean
16 pages, 14 figures
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| Format: | artículo biblioteca |
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Elsevier
1998-08
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| Subjects: | Particulate matter, Nepheloid layer, Continental margin, Front, Submarine canyon, |
| Online Access: | http://hdl.handle.net/10261/243716 http://dx.doi.org/10.13039/501100007273 http://dx.doi.org/10.13039/501100000780 |
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dig-icm-es-10261-2437162021-06-16T10:14:57Z Nepheloid structure and hydrographic control on the Barcelona continental margin, northwestern Mediterranean Puig, Pere Palanques, Albert Comisión Interministerial de Ciencia y Tecnología, CICYT (España) European Commission Particulate matter Nepheloid layer Continental margin Front Submarine canyon 16 pages, 14 figures Contemporary processes controlling the off-shelf transport of sediment particles on the Barcelona continental margin were identified using CTD/transmissometer profiles during three hydrographic surveys. A well defined pattern of particulate matter distribution consisting in surface, intermediate and near-bottom nepheloid layers related with topographic and hydrographic structures was observed. Suspended sediment supplied by rivers or resuspended on the shelf is transferred to the slope mainly through the bottom nepheloid layer. A detachment of this layer is produced at the shelf break generating an intermediate nepheloid layer that transports sediment from the shelf to the slope. This transport is observed along the whole shelf break, although the maximum transference takes place through the Foix submarine canyon. On the slope, an increase of particulate matter concentration has always been recorded along the 300-500 m isobaths associated with a permanent intermediate nepheloid layer. This slope nepheloid structure is controlled by the slope density front dynamics and by the associated geostrophic current. This pattern of particulate matter distribution had not been observed before in the study area, and shows some peculiarities different from any other continental margin that has been studied This research received support from the project AMB92-0251-CO2-01 funded by the Comisión Interministerial de Ciencia y Tecnologı́a and the projects MAS2-CT93-0053 and MAS3-CT95-0037 funded by the C.E.E. 2021-06-16T10:10:18Z 2021-06-16T10:10:18Z 1998-08 2021-06-16T10:10:18Z artículo http://purl.org/coar/resource_type/c_6501 issn: 0025-3227 Marine Geology 149(1-4): 39-54 (1998) http://hdl.handle.net/10261/243716 10.1016/S0025-3227(98)00037-1 http://dx.doi.org/10.13039/501100007273 http://dx.doi.org/10.13039/501100000780 https://doi.org/10.1016/S0025-3227(98)00037-1 Sí none Elsevier |
| institution |
ICM ES |
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España |
| countrycode |
ES |
| component |
Bibliográfico |
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| databasecode |
dig-icm-es |
| tag |
biblioteca |
| region |
Europa del Sur |
| libraryname |
Biblioteca del ICM España |
| topic |
Particulate matter Nepheloid layer Continental margin Front Submarine canyon Particulate matter Nepheloid layer Continental margin Front Submarine canyon |
| spellingShingle |
Particulate matter Nepheloid layer Continental margin Front Submarine canyon Particulate matter Nepheloid layer Continental margin Front Submarine canyon Puig, Pere Palanques, Albert Nepheloid structure and hydrographic control on the Barcelona continental margin, northwestern Mediterranean |
| description |
16 pages, 14 figures |
| author2 |
Comisión Interministerial de Ciencia y Tecnología, CICYT (España) |
| author_facet |
Comisión Interministerial de Ciencia y Tecnología, CICYT (España) Puig, Pere Palanques, Albert |
| format |
artículo |
| topic_facet |
Particulate matter Nepheloid layer Continental margin Front Submarine canyon |
| author |
Puig, Pere Palanques, Albert |
| author_sort |
Puig, Pere |
| title |
Nepheloid structure and hydrographic control on the Barcelona continental margin, northwestern Mediterranean |
| title_short |
Nepheloid structure and hydrographic control on the Barcelona continental margin, northwestern Mediterranean |
| title_full |
Nepheloid structure and hydrographic control on the Barcelona continental margin, northwestern Mediterranean |
| title_fullStr |
Nepheloid structure and hydrographic control on the Barcelona continental margin, northwestern Mediterranean |
| title_full_unstemmed |
Nepheloid structure and hydrographic control on the Barcelona continental margin, northwestern Mediterranean |
| title_sort |
nepheloid structure and hydrographic control on the barcelona continental margin, northwestern mediterranean |
| publisher |
Elsevier |
| publishDate |
1998-08 |
| url |
http://hdl.handle.net/10261/243716 http://dx.doi.org/10.13039/501100007273 http://dx.doi.org/10.13039/501100000780 |
| work_keys_str_mv |
AT puigpere nepheloidstructureandhydrographiccontrolonthebarcelonacontinentalmarginnorthwesternmediterranean AT palanquesalbert nepheloidstructureandhydrographiccontrolonthebarcelonacontinentalmarginnorthwesternmediterranean |
| _version_ |
1777667461465767936 |