georefid:2003-077699SEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContact2011-06-23T00:00:00Zhttp://sedis.iodp.org/pub-catalogue/index.php?id=10.1029/2001PA000662<gco:CharacterString>Evidence of surface water oligotrophy during the Paleocene-Eocene thermal maximum; nannofossil assemblage data from Ocean Drilling Program Site 690, Maud Rise, Weddell Sea</gco:CharacterString>2002-01-01publicationgeorefid:2003-077699doi:10.1029/2001PA000662Bralower, Timothy J.University of North Carolina at Chapel Hill, Department of Geological Sciences, Chapel Hill, NC, United StatesauthorAmerican Geophysical Union, Washington, DC, United StatespublisherdocumentDigitalPaleoceanography17 (2)13.1-13.13Nannoplankton assemblages at Ocean Drilling Program Site 690 (Maud Rise, Weddell Sea) experienced an abrupt and dramatic transformation at the onset of the Paleocene-Eocene Thermal Maximum (PETM) at 55 m.y. The major assemblage shift suggests a change from colder, more productive surface waters to warmer, more oligotrophic conditions. Significant restructuring of assemblages during the later part of the PETM indicates that nannoplankton communities were not stable and that surface water conditions changed, although they remained warm and oligotrophic. (modified journ. abst.)completedStratigraphyalgaeassemblagesbiologic evolutionCenozoicclimate changeEoceneextinctionfaunal listForaminiferaglobal changeglobal warmingInvertebrataLeg 113lower Eocenemarine sedimentsMaud RisemicrofossilsnannofossilsnannoplanktonOcean Drilling ProgramODP Site 690paleo-oceanographyPaleocenepaleoclimatologypaleoecologyPaleogenepaleotemperatureplanktonPlantaeproductivityProtistasedimentsSouthern OceanTertiaryupper PaleoceneWeddell Seaurn:org.iodp:exp:113urnlargerWorkCitationcampaignurn:org.iodp:exp:113:site:690urnlargerWorkCitationstudyurn:org.iodp:exp:113urnlargerWorkCitationcampaignEnglishgeoscientificInformation1.12181.1218-65.0938-65.0937application/pdfunknownSEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContacthttp://www.agu.org/journals/pa/pa0202/2001PA000662/2001PA000662.pdfdownload