georefid:2012-030421SEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContact2013-07-08T00:00:00Zhttp://sedis.iodp.org/pub-catalogue/index.php?id=10.1017/S0016756811000999<gco:CharacterString>Astronomical duration of polarity Chron C31r (lower Maastrichtian); cyclostratigraphy of ODP Site 762 (Indian Ocean) and the Contessa highway section (Gubbio, Italy)</gco:CharacterString>2012-01-01publicationgeorefid:2012-030421doi:10.1017/S0016756811000999Husson, DorotheeUniversite Pierre et Marie Curie, Paris, FranceauthorGalbrun, BrunoUniversity of Copenhagen, DenmarkauthorThibault, NicolasUniversita d'Urbino, ItalyauthorGardin, SilviaauthorHuret, EmiliaauthorCoccioni, RodolfoauthorCambridge University Press, London, United KingdompublisherdocumentDigitalGeological Magazine149 (2)345-351The duration of polarity Chron C31r is estimated with a cyclostratigraphic approach. Two sites are investigated: ODP Site 762 (Indian Ocean) and the Contessa Highway section (Gubbio, Italy). Cyclostratigraphic analysis is performed on greyscale variations (Site 762) and magnetic susceptibility variations (Contessa section). Both sites reveal an astronomical control of the sedimentation, highlighted by the identification of all the orbital periodicities. Cyclostratigraphic signals are tuned on 405 ka eccentricity cycles extracted from the La04 astronomical solution. In both sites, cycle counting gives an estimate of the duration of polarity Chron C31r of about 2.09 + or - 0.03 Ma.completedStratigraphyGeochronologyalgaeassemblageschronostratigraphyContessa ItalyCretaceouscyclostratigraphyeccentricityEuropeExmouth PlateaugeochronologyGubbio ItalyIndian OceanItalyLeg 122lower MaestrichtianMaestrichtianmagnetic propertiesmagnetic susceptibilityMesozoicmicrofossilsnannofossilsOcean Drilling ProgramODP Site 762paleogeographypaleomagnetismPerugia ItalyPlantaerelative ageSenonianSouthern EuropeUmbria ItalyUpper Cretaceousurn:org.iodp:exp:122urnlargerWorkCitationcampaignurn:org.iodp:exp:122:site:762urnlargerWorkCitationstudyurn:org.iodp:exp:122urnlargerWorkCitationcampaignEnglishgeoscientificInformation11.5000112.1515-19.531543.4000Umbria Italyapplication/pdfunknownSEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContacthttp://journals.cambridge.org/data/relatedlink/GEOColourOnline.pdfdownload