georefid:2012-040686SEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContact2013-07-08T00:00:00Zhttp://sedis.iodp.org/pub-catalogue/index.php?id=10.1029/2010GC003097<gco:CharacterString>Coherent pattern and timing of the carbon isotope excursion and warming during Eocene Thermal Maximum 2 as recorded in planktic and benthic Foraminifera</gco:CharacterString>2010-01-01publicationgeorefid:2012-040686doi:10.1029/2010GC003097Stap, LucyUtrecht University, Faculty of Geosciences, Utrecht, NetherlandsauthorLourens, LucasRoyal Netherlands Institute for Sea Research, Netherlandsauthorvan Dijk, ArnoldYale University, United StatesauthorSchouten, StefanauthorThomas, EllenauthorAmerican Geophysical Union and The Geochemical Society, United StatespublisherdocumentDigitalGeochemistry, Geophysics, Geosystems - G (super 3)11 (11)Eocene Thermal Maximum 2 (ETM2; approximately 53.7 Ma) occurred approximately 2 Myr after the Paleocene-Eocene Thermal Maximum ( approximately 55.5 Ma) and was characterized by a deep-sea warming of >3 degrees C, associated with massive release of carbon into the ocean-atmosphere system. We performed single-specimen stable isotope analyses of the planktic foraminiferal genera Acarinina (surface dweller) and Subbotina (thermocline dweller) from Ocean Drilling Program Sites 1265, 1267, and 1263 (Walvis Ridge, SE Atlantic Ocean) and compared high-resolution planktic and benthic stable isotope records to constrain the surface warming and the bathymetric pathway of the carbon isotope excursion during ETM2. Tests of the thermocline dweller Subbotina are absent from sediment deposited during the peak of ETM2. The Acarinina carbon and oxygen isotope records of Sites 1263, 1265, and 1267 are strikingly similar, despite some test recrystallization and large differences in burial depths. Sea surface temperature (SST) estimates based on delta (super 18) O isotope values of Acarinina indicate a SST increase of approximately 2 degrees C, significantly less than the >3 degrees C estimated for bottom water warming. The maximum negative carbon isotope excursion for Acarinina was approximately 1.7 ppm, slightly more than in the deep sea ( approximately 1.4 ppm). The planktic and benthic isotope records do not show time lags, indicating that during ETM2 the isotopically depleted carbon injected into the ocean-atmosphere system was rapidly mixed within all oceanic carbon reservoirs.completedStratigraphyAcarininaAtlantic Oceanbenthic taxaC-13/C-12carbonCenozoicForaminiferaglobal changeglobal warmingInvertebrataisotope ratiosisotopesLeg 208microfossilsO-18/O-16Ocean Drilling ProgramODP Site 1263ODP Site 1265ODP Site 1267oxygenpaleo-oceanographyPaleocene-Eocene Thermal MaximumpaleoclimatologyPaleogeneplanktonic taxaProtistaSouth Atlanticstable isotopesTertiaryWalvis Ridgeurn:org.iodp:exp:208urnlargerWorkCitationcampaignurn:org.iodp:exp:208:site:1263urnlargerWorkCitationstudyurn:org.iodp:exp:208urnlargerWorkCitationcampaignurn:org.iodp:exp:208:site:1265urnlargerWorkCitationstudyurn:org.iodp:exp:208urnlargerWorkCitationcampaignurn:org.iodp:exp:208:site:1267urnlargerWorkCitationstudyurn:org.iodp:exp:208urnlargerWorkCitationcampaignEnglishgeoscientificInformation1.42002.4700-28.5000-28.0600application/pdfunknownSEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContacthttp://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1525-2027/homepage/G3_Special_Section_Proposal_Form.pdfdownload