georefid:2013-010057SEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContact2013-07-08T00:00:00Zhttp://sedis.iodp.org/pub-catalogue/index.php?id=2013-010057<gco:CharacterString>Ventilation changes in the western North Pacific since the last glacial period</gco:CharacterString>2012-01-01publicationgeorefid:2013-010057Okazaki, Y.Japan Agency for Marine-Earth Science and Technology, Yokosuka, JapanauthorSagawa, T.Ehime University, JapanauthorAsahi, H.University of Tokyo, JapanauthorHorikawa, K.University of Toyama, JapanauthorOnodera, J.authorCopernicus, Katlenburg-Lindau, InternationalpublisherdocumentDigitalClimate of the Past8 (1)17-24We reconstructed the ventilation record of deep water at 2100 m depth in the mid-latitude western North Pacific over the past 25 kyr from radiocarbon measurements of coexisting planktic and benthic foraminiferal shells in sediment with a high sedimentation rate. The (super 14) C data on fragile and robust planktic foraminiferal shells were concordant with each other, ensuring high quality of the reconstructed ventilation record. The radiocarbon activity changes were consistent with the atmospheric record, suggesting that no massive mixing of old carbon from the abyssal reservoir occurred throughout the glacial to deglacial periods.completedQuaternary geologyabsolute ageAtlantic meridional overturning circulationatmospheric transportbenthic taxaBuliminaceaC-14carboncarbon dioxideclimate changecoresdeglaciationEast PacificForaminiferaGlobigerinaGlobigerina bulloidesGlobigerinaceaGlobigerinidaeGloborotaliaGloborotalia inflataGloborotaliidaeInvertebrataisotope ratiosisotopeslast glacial maximumLeg 145marine environmentmicrofossilsNorth PacificNortheast PacificNorthwest PacificO-18/O-16Ocean Drilling ProgramODP Site 887oxygenPacific Oceanpaleocirculationpaleocurrentspaleotemperatureplanktonic taxaProtistaradioactive isotopesRotaliinasedimentationsedimentation ratessedimentsstable isotopessubmarine environmenttransportUvigerinaUvigerinidaeventilationWest Pacificurn:org.iodp:exp:145urnlargerWorkCitationcampaignurn:org.iodp:exp:145:site:887urnlargerWorkCitationstudyurn:org.iodp:exp:145urnlargerWorkCitationcampaignEnglishgeoscientificInformation-148.2647141.491236.041254.2155Published in Climate of the Past Discussion: 18 August 2011, http://www.clim-past-discuss.net/7/2719/2011/cpd-7-2719-2011.html; accessed in April 2012application/pdfunknownSEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContacthttp://www.clim-past.net/8/17/2012/cp-8-17-2012.pdfdownload