georefid:2005-041730SEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContact2011-06-23T00:00:00Zhttp://sedis.iodp.org/pub-catalogue/index.php?id=10.1126/science.1108696<gco:CharacterString>Glacial/interglacial changes in subarctic North Pacific stratification</gco:CharacterString>2005-01-01publicationgeorefid:2005-041730doi:10.1126/science.1108696Jaccard, S. L.ETHZ, Department of Earth Sciences, Zurich, SwitzerlandauthorHaug, G. H.Geoforschungszentrum Potsdam, Federal Republic of GermanyauthorSigman, D. M.Princeton University, United StatesauthorPedersen, T. F.University of Victoria, CanadaauthorThierstein, H. R.Bremen University, Federal Republic of GermanyauthorRoehl, U.authorAmerican Association for the Advancement of Science, Washington, DC, United StatespublisherdocumentDigitalScience308 (5724)1003-1006Since the first evidence of low algal productivity during ice ages in the Antarctic Zone of the Southern Ocean was discovered, there has been debate as to whether it was associated with increased polar ocean stratification or with sea-ice cover, shortening the productive season. The sediment concentration of biogenic barium at Ocean Drilling Program site 882 indicates low algal productivity during ice ages in the Subarctic North Pacific as well. Site 882 is located southeast of the summer sea-ice extent even during glacial maxima, ruling out sea-ice-driven light limitation and supporting stratification as the explanation, with implications for the glacial cycles of atmospheric carbon dioxide concentration.completedQuaternary geologyalgaeAntarctic ice sheetAntarcticacalcium carbonateCenozoicclimate changecorrelationD/HdeglaciationForaminiferaglacial extentglacial geologyglaciationhydrogenice coresInvertebrataisotope ratiosisotopesLeg 145marine environmentmicrofossilsNorth PacificOcean Drilling ProgramODP Site 882Pacific Oceanpaleo-oceanographypaleoclimatologypaleoecologyPlantaeproductivityProtistaQuaternarySouthern Oceanstable isotopesstratificationsubarctic regionsVostok Stationurn:org.iodp:exp:145urnlargerWorkCitationcampaignurn:org.iodp:exp:145:site:882urnlargerWorkCitationstudyurn:org.iodp:exp:145urnlargerWorkCitationcampaignEnglishgeoscientificInformation167.3600167.360050.214850.2148application/pdfunknownSEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContacthttp://www.sciencemag.org/content/308/5724/1003.full.pdfdownload