@article {Cameselle2013, title = {{Late Miocene sedimentary architecture of the Ebro Continental Margin (Western Mediterranean): implications to the Messinian Salinity Crisis}}, journal = {International Journal of Earth Sciences}, volume = {103}, number = {2}, year = {2013}, month = {nov}, pages = {423{\textendash}440}, abstract = {The Messinian Salinity Crisis (MSC) resulted from a significant multi-phase drop and subsequent reflooding of the Mediterranean Sea from 5.96 to 5.33 Ma. Well-developed drainage networks, characterized by step-like profiles and abrasion platforms, are associated to this event. The Ebro Continental Margin (Western Mediterranean) presents an additional complexity since the capture of the drainage of the adjacent subaerial Ebro Basin took place sometime prior to the Messinian stage. Using 3D seismic reflection data, this work provides new insights into the origin of the step-like profile of the Messinian erosional surface (MES) and timing of the capture of the subaerial Ebro Basin. The results obtained indicate a sedimentary-active continental slope and delta progradation during Middle-Late Miocene, in a normal regressive context associated to a pre-Messinian proto-Ebro River. The mature development attained by the Messinian Ebro River network during the MSC corroborates that the capture of the Ebro Basin occurred prior to the MSC. The configuration of the clinoforms below the MES suggests that deltaic sediments of the Messinian Paleo-Ebro River deposited during the Tortonian and initial Messinian sea-level drawdown. The MES formed at the top of the Tortonian Highstand, where a fluvial network was deeply carved, and in the topset region of the Messinian Falling Stage Systems Tract, where minor erosion occurred. Fluvial deposits are outstandingly preserved on the main valleys of the MES. Therefore, the step-like profile of the MES was not created during Zanclean inundation, but during the latest stages of the main Messinian sea-level fall and lowstand. {\textcopyright} 2013 Springer-Verlag Berlin Heidelberg.}, keywords = {Ebro, Erosion, Mediterranean, Messinian, Miocene, Sea level}, issn = {1437-3254}, doi = {10.1007/s00531-013-0966-5}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84894260158\&partnerID=tZOtx3y1}, author = {Cameselle, Alejandra L. and Urgeles, Roger and De Mol, Ben and Camerlenghi, Angelo and Canning, Jason C.} } @inbook {Urgeles2012, title = {{Distinguishing sediment bedforms from sediment deformation in prodeltas of the Mediterranean Sea.}}, booktitle = {Submarine Mass Movement and Their Consequences, Advances in Natural and Technological Hazards Research}, year = {2012}, pages = {233{\textendash}244}, publisher = {Springer Netherlands}, organization = {Springer Netherlands}, address = {Dordrecht}, abstract = {Most Mediterranean prodeltas show undulated sediments on the foresets of their Holocene wedges. These features have been described all along the Mediterranean and interpreted as either soft sediment deformation or, more recently, as sediment bedforms. We present a detailed analysis of these features using ultrahighresolution seismic and bathymetric data, as well as geotechnical information and hydrodynamic time series and hydrographic transects. We show that the characteristics of the sediment undulations (morphology and configuration of the reflections down section and between adjacent undulations) are incompatible with a genesis by sediment deformation. {\textcopyright} Springer Science+Business Media B.V. 2012.}, keywords = {Prodeltas, Sediment bedforms, slope failure, Undulated sediments}, isbn = {978-94-007-2161-6}, doi = {10.1007/978-94-007-2162-3}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84904091924\&partnerID=tZOtx3y1}, author = {Urgeles, Roger and Cattaneo, Antonio and Puig, Pere and Liquete, Camino and De Mol, Ben and Sultan, Nabil and Trincardi, Fabio}, editor = {Yamada, Yasuhiro and Kawamura, Kiichiro and Ikehara, Ken and Ogawa, Yujiro and Urgeles, Roger and Mosher, David and Chaytor, Jason and Strasser, Michael} } @inbook {Rebesco2012, title = {{One million years of climatic generated landslide events on the northwestern Barents Sea continental margin.}}, booktitle = {Submarine Mass Movement and Their Consequences, Advances in Natural and Technological Hazards Research}, year = {2012}, pages = {747{\textendash}756}, publisher = {Springer Netherlands}, organization = {Springer Netherlands}, address = {Dordrecht}, abstract = {Relatively recent, shallow landslides are imaged both on swath bathymetry, sub-bottom and multichannel seismic reflection (MCS) data from the upper-middle continental slope on the Storfjorden and Kveithola Trough Mouth Fans, NW Barents Sea margin. Giant paleo-landslide deposits, detected only by MCS profiles, are characterized by chaotic acoustic units up to about 250 m thick on the lower continental slope. The thickest, oldest landslide, dated between 1 and 0.8 Ma, took place just after the large-scale intensification of glaciation in the Barents Sea. The apparent spatial coincidence of landslides and channels with the boundary between the two fan systems, that are generated due to huge quantities of sediments transported to the continental slope by paleo-ice streams, suggests a common controlling climatic process for their development. Most probably the slides are related to the abundance of basal meltwater beneath the ice sheet, which in addition to determining ice stream motion and lubrication also influences the behavior of mass wasting processes. {\textcopyright} Springer Science+Business Media B.V. 2012.}, keywords = {Continental slope, NW barents sea margin, Sealloor morphology, Seismic reflection, Submarine landslide}, isbn = {978-94-007-2161-6}, doi = {10.1007/978-94-007-2162-3}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84904105361\&partnerID=tZOtx3y1}, author = {Rebesco, Michele and Pedrosa, Maria T. and Camerlenghi, Angelo and Lucchi, Renata G. and Sauli, Chiara and De Mol, Ben and Madrussani, Gianni and Urgeles, Roger and Rossi, Giuliana and B{\"o}hm, Gualtiero}, editor = {Yamada, Yasuhiro and Kawamura, Kiichiro and Ikehara, Ken and Ogawa, Yujiro and Urgeles, Roger and Mosher, David and Chaytor, Jason and Strasser, Michael} } @inbook {Lucchi2012, title = {{Recent submarine landslides on the continental slope of Storfjorden and Kveithola Trough-Mouth Fans (north west Barents Sea)}}, booktitle = {Submarine Mass Movements and Their Consequences, Advances in Natural and Technological Hazards Research, 34, Springer, Dordrecht (The Netherlands)}, year = {2012}, pages = {735{\textendash}745}, publisher = {Springer Netherlands}, organization = {Springer Netherlands}, address = {Dordrecht}, abstract = {Up to 12 submarine landslides retain a morphological evidence as concave amphitheater-like depressions of various sizes on the middle and upper slope of the Storfjorden and Kveithola Trough-Mouth Fans (TMFs), NW Barents Sea. The largest of them show lateral scarps 35-40 m high that reach the continental shelf edge and cover an area of at least 1,120 km2. Submarine landslides are translational, with headwall and laterals scarps clearly cut into Last Glacial Maximum debris flows deposits. The largest landslides seem to be rooted at the base of a terrigenous/hemipelagic sedimentary unit inferred to be of Middle Weichselian age (Marine Isotopic Stage 3). Stratigraphic, lithological and geotechnical observations suggest that the rapid deposition of a thick sequence of fine-grained, high water content interlaminate plumites is the most important controlling factors in the generation of submarine landslides on the southern Storfjorden and Kveithola TMFs. {\textcopyright} Springer Science+Business Media B.V. 2012.}, keywords = {Barents Sea, Debris flow, Ice stream, Kveithola, Storfjorden, Submarine landslide, Trough-mouth fans}, isbn = {978-94-007-2161-6}, doi = {10.1007/978-94-007-2162-3}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84904104155\&partnerID=tZOtx3y1}, author = {Lucchi, Renata G. and Pedrosa, Maria T. and Camerlenghi, Angelo and Urgeles, Roger and De Mol, Ben and Rebesco, Michele}, editor = {Yamada, Yasuhiro and Kawamura, Kiichiro and Ikehara, Ken and Ogawa, Yujiro and Urgeles, Roger and Mosher, David and Chaytor, Jason and Strasser, Michael} } @article {Urgeles2011a, title = {{New constraints on the Messinian sealevel drawdown from 3D seismic data of the Ebro Margin, western Mediterranean}}, journal = {Basin Research}, volume = {23}, number = {2}, year = {2011}, month = {apr}, pages = {123{\textendash}145}, abstract = {We present new 3D seismic and well data from the Ebro Margin, NW Mediterranean Sea, to shed new light on the processes that formed the Messinian Erosion Surfaces (MES) of the Valencia Trough (Mediterranean Sea). We combine these data with backstripping techniques to provide a minimum estimate of the Messinian sea level fall in the EBRO Margin, as well as coupled isostasy and river incision and transport modeling to offer new constraints on the evolution of the adjacent subaerial Ebro Basin. Four major seismic units are identified on the Cenozoic Ebro Margin, based on the seismic data, including two major prograding megasequences that are separated by a major unconfirmity: the MES. The 3D seismic data provide an unprecedented view of the MES and display characteristic features of subaerial incision, including a drainage network with tributaries of at least five different orders, terraces and meandering rivers. The Messinian landscape presents a characteristic stepped-like profile that allows the margin to be subdivided in three different regions roughly parallel to the coastline. No major tectonic control exists on the boundaries between these regions. The boundary between the two most distal regions marks the location of a relatively stable base level, and this is used in backstripping analysis to estimate the magnitude of sea level drop associated with the Messinian Salinity Crisis on the Ebro Margin. The MES on the Ebro Margin is dominated by a major fluvial system, that we identify here as the Messinian Ebro River. The 3D seismic data, onshore geology and modeling results indicate that the Ebro River drained the Ebro Basin well in advance of the Messinian. {\textcopyright} 2010 The Authors. Basin Research {\textcopyright} 2010 Blackwell Publishing Ltd, European Association of Geoscientists \& Engineers and International Association of Sedimentologists.}, issn = {0950091X}, doi = {10.1111/j.1365-2117.2010.00477.x}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-79952079451\&partnerID=tZOtx3y1}, author = {Urgeles, Roger and Camerlenghi, Angelo and Garcia-Castellanos, Daniel and De Mol, Ben and Garc{\'e}s, Miquel and Verg{\'e}s, Jaume and Haslam, Ian and Hardman, Martin} } @article {Urgeles2011, title = {{A review of undulated sediment features on Mediterranean prodeltas: distinguishing sediment transport structures from sediment deformation}}, journal = {Marine Geophysical Research}, volume = {32}, number = {1-2}, year = {2011}, month = {apr}, pages = {49{\textendash}69}, abstract = {Most 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. {\textcopyright} 2011 Springer Science+Business Media B.V.}, keywords = {Hyperpycnal flows, Internal waves, Prodeltas, Sediment waves, slope failure, Undulated sediments}, issn = {0025-3235}, doi = {10.1007/s11001-011-9125-1}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-79961209935\&partnerID=tZOtx3y1}, author = {Urgeles, Roger and Cattaneo, Antonio and Puig, Pere and Liquete, Camino and De Mol, Ben and Amblas, David and Sultan, Nabil and Trincardi, Fabio} } @conference {Urgeles2009, title = {{Sediment undulations on the Llobregat prodelta: Signs of early slope instability or sedimentary bedforms?}}, booktitle = {Rendiconti Online Societa Geologica Italiana}, volume = {7}, year = {2009}, pages = {103{\textendash}106}, abstract = {A field of sediment undulations has been mapped in the Llobregat River prodelta. similar features had been recognized in other prodeltas and interpreted either as deformation or sedimentary structures. therefore, proper interpretation of these undulations is needed for correct risk assessment. We evaluate the characteristics of the sediment undulations in order to determine the most likely process for the origin of these structures. these characteristics indicate that the sediment undulations on the Llobregat River prodelta do not result from sediment deformation. their identification as sediment waves implies that such features do not pose a major hazard for further offshore development.}, issn = {20358008}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84863328164\&partnerID=tZOtx3y1}, author = {Urgeles, Roger and De Mol, Ben and Puig, Pere and De Batist, Marc and Hughes-Clarke, John E.} }