georefid:2004-074808SEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContact2011-06-23T00:00:00Zhttp://sedis.iodp.org/pub-catalogue/index.php?id=2004-074808<gco:CharacterString>On the evolution of the Cascadia accretionary prism, western North American continental margin</gco:CharacterString>2001-01-01publicationgeorefid:2004-074808Chamov, N. P.Russian Academy of Sciences, Geological Institute, Moscow, Russian FederationauthorBasilyan, A. E.authorBarinov, K. B.authorMAIK Nauka/Interperiodica Publishing, Birmingham, AL, United StatespublisherdocumentHardcopyGeotectonics35 (4)306-315New biostratigraphic data [17] and a find of a Calyptogena pacifica Dall, Mollusca, Bivalvia, shell in the core material from ODP Site 892 are utilized in a model proposed for the development of the Cascadia accretionary prism. The progradation mechanism of the prism is discussed, along with the effect of the vertical displacement of the seafloor surface on the sedimentation environment and the evolution of benthic communities. A scenario is proposed for the evolution of the prism over the time interval from the Late Miocene to present. It is demonstrated that the displacement velocities of distinct elements of the prism vary from 1.5 to 5.5 km/m.y. and increase inland.completedSolid-earth geophysicsStratigraphyaccretionary wedgesbiostratigraphyBivalviaCascadia subduction zoneCenozoiccontinental margincoresdisplacementsfaultsInvertebrataLeg 146MioceneMolluscaNeogeneNorth AmericaOcean Drilling ProgramODP Site 892progradationpropagation ratessea-floor spreadingTertiaryupper Miocenevelocityurn:org.iodp:exp:146urnlargerWorkCitationcampaignurn:org.iodp:exp:146:site:892urnlargerWorkCitationstudyurn:org.iodp:exp:146urnlargerWorkCitationcampaignEnglishgeoscientificInformation-125.0709-125.070544.402644.4032