georefid:2003-078197SEDIS Publication Catalogue

ana.macario@awi.de

http://sedis.iodp.org/pub-catalogue/informationpointOfContact2011-06-23T00:00:00Zhttp://sedis.iodp.org/pub-catalogue/index.php?id=2003-0781972002-01-01publicationgeorefid:2003-078197Rebesco, M.Istituto Nazionale di Oceanografia e di Geofisica Sperimentale, Sgonico, ItalyauthorPudsey, Carol J.British Antarctic Survey, United KingdomauthorCanals, M.Scottish Association for Marine Science, United KingdomauthorCamerlenghi, A.University of Bordeaux, FranceauthorBarker, Peter F.PETROBRAS E&P, BrazilauthorEstrada, F.British Antarctic Survey, United KingdomauthorGiorgetti, A.Universitat de Barcelona, SpainauthorGeological Society Publishing House, Bath, United KingdompublisherdocumentHardcopyIn: Stow, Dorrik A. V. (editor), Pudsey, Carol J. (editor), Howe, John A. (editor), Faugeres, Jean-Claude (editor), Viana, Adriano R. (editor), Deep-water contourite systems; modern drifts and ancient series, seismic and sedimentary characteristics22353-371Twelve sedimentary mounds are identified on the upper continental rise of the Pacific Margin of the Antarctic Peninsula. All these mounds are produced by a varying degree of interaction of along-slope bottom water flow with downslope turbidity currents. These mounds provide a complete range of intermediates between two end members: the sediment drift and the channel levee. Surface sediments on drift 7 suggest that the mechanisms for the supply and transport of sediment include entrainment of material from turbidity currents within ambient bottom currents, and pelagic settling from the sea surface, including biogenic and glacially derived material. The long-lasting activity of these mechanisms is documented by the data provided by four DSDP and ODP drill sites. Bathymetric and seismic data, both at a large, comprehensive scale and at a small, detailed scale, show the geometry of the sedimentary mounds and their relationships with the adjacent turbidity current channel systems. These data allow the determination of some diagnostic criteria to identify the sediment drifts.completedSedimentary petrologyOceanographyAntarctic PeninsulaAntarcticabathymetrybiogenic structuresbioturbationbottom featuresCenozoicchannelsclastic sedimentsclaycontinental margincontinental risecurrentsDeep Sea Drilling Projectdriftgeophysical methodsgeophysical profilesgeophysical surveysice raftinglaminationsleveeslithostratigraphyMiocenemoundsNeogeneOcean Drilling Programocean floorsPacific Oceanplanar bedding structuressedimentary structuressedimentsseismic methodsseismic profilesSouth PacificsurveysTertiaryturbidity currentsupper MioceneEnglishgeoscientificInformation-80.0000-60.0000-70.0000-62.0000