georefid:2012-076524SEDIS 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=10.1016/j.cretres.2011.09.0012012-01-01publicationgeorefid:2012-076524doi:10.1016/j.cretres.2011.09.001Thibault, NicolasUniversity of Copenhagen, Department of Geography and Geology, Copenhagen, DenmarkauthorHarlou, RikkeGeological Survey of Denmark and Greenland, DenmarkauthorSchovsbo, NielsGNS Science, New ZealandauthorSchioler, PoulUniversite Pierre et Marie Curie Paris VI, FranceauthorMinoletti, FabriceauthorGalbrun, BrunoauthorLauridsen, Bodil W.authorSheldon, EmmaauthorStemmerik, LarsauthorSurlyk, FinnauthorElsevier, United KingdompublisherdocumentHardcopyCretaceous Research33 (1)72-90High-resolution carbon isotope stratigraphy of the upper Campanian-Maastrichtian is recorded in the Boreal Realm from a total of 1968 bulk chalk samples of the Stevns-1 core, eastern Denmark. Isotopic trends are calibrated by calcareous nannofossil bio-events and are correlated with a lower-resolution delta (super 13) C profile from Rordal, northwestern Denmark. A quantitative approach is used to test the reliability of Upper Cretaceous nannofossil bio-events and provides accurate biohorizons for the correlation of delta (super 13) C profiles. The Campanian-Maastrichtian boundary (CMB) is identified through the correlation of dinoflagellate biostratigraphy and delta (super 13) C stratigraphy between Stevns-1 and the Global boundary Standard Stratotype-section and Point at Tercis les Bains (SW France), allowing the identification of new chemical and biostratigraphic markers that provide a precise placement of the stage boundary on a regional scale. The boundary interval corresponds to the third phase of a stepwise 0.8 ppm negative delta (super 13) C excursion, lies in calcareous nannofossil subzone UC16d (super BP) , and encompasses the last occurrence of nannofossil Tranolithus stemmerikii and first occurrence of nannofossil Prediscosphaera mgayae. Fifteen delta (super 13) C events are defined and correlated to sixteen reliable nannofossil biohorizons, thus providing a well-calibrated standard high-resolution delta (super 13) C curve for the Boreal Realm. Abstract Copyright (2012) Elsevier, B.V.completedIsotope geochemistryStratigraphyalgaeAtlantic OceanbiostratigraphybiozonesBoreal RealmC-13/C-12Campaniancarboncarbonate rockschalkcorrelationCretaceousDanish BasinDeep Sea Drilling ProjectDenmarkDinoflagellataDSDP Site 525eastern DenmarkEuropeFranceIPODisotope ratiosisotopesJutlandLandes FranceLeg 74MaestrichtianMesozoicmicrofossilsmorphologynannofossilsNordjylland Denmarknorthwestern DenmarkpalynomorphsPlantaeRordal DenmarkScandinaviasedimentary rocksSenonianSjaellandSouth Atlanticstable isotopesStevns-1 coreTercis les Bains Franceupper CampanianUpper CretaceousWalvis RidgeWestern Europeurn:org.iodp:exp:74urnlargerWorkCitationcampaignurn:org.iodp:exp:74:site:525urnlargerWorkCitationstudyurn:org.iodp:exp:74urnlargerWorkCitationcampaignEnglishgeoscientificInformation-1.060012.270043.400057.0343Tercis les Bains FranceIncludes appendices