georefid:2013-039687SEDIS Publication Catalogue

ana.macario@awi.de

http://sedis.iodp.org/pub-catalogue/informationpointOfContact2013-07-08T00:00:00Zhttp://sedis.iodp.org/pub-catalogue/index.php?id=10.1111/j.1365-3121.2012.01086.x2012-01-01publicationgeorefid:2013-039687doi:10.1111/j.1365-3121.2012.01086.xDinares-Turell, JaumeIstituto Nazionale di Geofisica e Vulcanologia, Rome, ItalyauthorPujalte, VictorianoUniversity of the Basque Country, SpainauthorStoykova, KristalinaBulgarian Academy of Science, Geological Institute, BulgariaauthorBaceta, Juan IgnacioUniversity of Sofia, BulgariaauthorIvanov, MarinauthorWiley-Blackwell, Oxford, United KingdompublisherdocumentHardcopyTerra Nova24 (6)477-486The early Cenozoic, which is punctuated by several negative carbon isotope excursions (CIEs), was a time of climatic and oceanographic transition from 'Greenhouse' to 'Icehouse' conditions. The occurrence of a approximately 0.5 ppm CIE starting at the top of Chron C27n (TC27N) is reconfirmed with stable isotope data from Zumaia (Spain) and Bjala (Bulgaria) localities. Spectral analysis on respective carbonate/magnetic susceptibility proxy records substantiates the orbital cyclostratigraphy allowing correlation to a high-resolution benthic foraminifera isotope record from ODP Pacific Site 1209, that indicates a coeval 2 degrees C transient warming. The hyperthermal event lasts approximately 200 ka, contrasting with other short-lived events from the Eocene, and displays a relatively rapid onset and a longer tailing back to pre-event values similar to the Palaeocene-Eocene Thermal Maximum (PETM), though lower in amplitude. That a causal trigger for the TC27N event may be the onset of volcanism in the North Atlantic Igneous Province (NAIP) can be inferred from a approximately 200-m-thick lava pile erupted during C27n/C26r polarity transition in the E Greenland margin. Abstract Copyright (2012), Blackwell Publishing Ltd.completedStratigraphyAtlantic OceanBjala BulgariaC-13/C-12carboncarbon isotope excursionscarbonate rocksCenozoicchemical compositionchemostratigraphyChron C27ncorrelationcyclostratigraphyDanianForaminiferagreenhouse effecticehouse effectIceland PlumeIndian OceanInvertebrataisotope ratiosisotopeslarge igneous provincesLeg 122Leg 198Leg 208limestonelower Paleocenemagnetic propertiesmagnetic susceptibilitymicrofossilsNorth AtlanticNorth Atlantic Igneous ProvinceNorth PacificNorthwest PacificO-18/O-16Ocean Drilling ProgramODP Site 1209ODP Site 1262ODP Site 1263ODP Site 761oxygenPacific Oceanpaleo-oceanographyPaleocenePaleocene-Eocene Thermal MaximumpaleoclimatologyPaleogenepaleogeographypaleomagnetismProtistasedimentary rocksShatsky RiseSouth Atlanticspectrastable isotopesstratotypesTertiaryTethysWalvis RidgeWest Pacificwhole rockWombat PlateauZumaia Spainurn:org.iodp:exp:122urnlargerWorkCitationcampaignurn:org.iodp:exp:198urnlargerWorkCitationcampaignurn:org.iodp:exp:208urnlargerWorkCitationcampaignurn:org.iodp:exp:198:site:1209urnlargerWorkCitationstudyurn:org.iodp:exp:198urnlargerWorkCitationcampaignurn:org.iodp:exp:208:site:1262urnlargerWorkCitationstudyurn:org.iodp:exp:208urnlargerWorkCitationcampaignurn:org.iodp:exp:208:site:1263urnlargerWorkCitationstudyurn:org.iodp:exp:208urnlargerWorkCitationcampaignurn:org.iodp:exp:122:site:761urnlargerWorkCitationstudyurn:org.iodp:exp:122urnlargerWorkCitationcampaignEnglishgeoscientificInformation-2.1539158.3100-28.320043.1756Supplemental information/data is available in the online version of this article