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Title

A review of undulated sediment features on Mediterranean prodeltas: distinguishing sediment transport structures from sediment deformation

AuthorsUrgeles, Roger ; Cattaneo, Antonio; Puig, Pere ; Liquete, Camino; De Mol, Ben ; Amblas, David; Sultan, Nabil; Trincardi, Fabio
KeywordsUndulated sediments
Prodeltas
Slope failure
Sediment waves
Hyperpycnal flows
Internal waves
Issue DateMar-2011
PublisherSpringer
CitationMarine Geophysical Researches 32(1-2): 49-69 (2011)
AbstractMost Mediterranean prodeltas show undulated sediment features on the foresets of their Holocene wedges. These features have been described all along the Mediterranean for the last 30 years and interpreted as either soft sediment deformation and incipient landsliding, and more recently, as sediment transport structures. We perform a review and detailed analysis of these undulated sediment features using ultrahigh-resolution seismic and bathymetric data as well as geotechnical information and hydrodynamic time series and hydrographic transects. In this study we show that the characteristics of the sediment undulations (configuration of the reflections down section and between adjacent undulations and overall morphologic characteristics) are incompatible with a genesis by sediment deformation alone and do not show evidence of sediment deformation in most cases. Various processes in the benthic boundary layer can be invoked to explain the variety of features observed in the numerous areas displaying sediment undulations
Description21 pages, 10 figures, 2 tables
Publisher version (URL)http://dx.doi.org/10.1007/s11001-011-9125-1
URIhttp://hdl.handle.net/10261/45162
DOI10.1007/s11001-011-9125-1
ISSN0025-3235
E-ISSN1573-0581
Appears in Collections:(ICM) Artículos
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