Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/7385
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dc.contributor.authorallPayros, A.; Universidad del País Vascoen
dc.contributor.authorallDinarès-Turell, J.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
dc.contributor.authorallBernaola, G.; Universidad del País Vascoen
dc.contributor.authorallOrue-Etxebarria, Uniersidad del País Vascoen
dc.contributor.authorallApellaniz, E.; Universidad del País Vascoen
dc.contributor.authorallTosquella, J.; Universidad de Huelvaen
dc.contributor.editorallEgger, Hans; Univ. of Salzburgen
dc.date.accessioned2012-01-18T13:27:24Zen
dc.date.available2012-01-18T13:27:24Zen
dc.date.issued2011-06-05en
dc.identifier.urihttp://hdl.handle.net/2122/7385en
dc.description.abstractAn integrated bio-, magneto- and cyclostratigraphic study of the Ypresian/Lutetian (Early/Middle Eocene) transition along the Pyrenean Otsakar section (Payros et al., 2011) resulted in the identification of the C22n/C21r chron boundary and of the calcareous nannofossil CP12a/b zonal boundary; the latter is the main correlation criterion of the Lutetian Global Stratotype Section and Point (GSSP) recently defined at Gorrondatxe (Basque Country). By counting precession-related mudstone-marl couplets of 21 ka, the time lapse between both events was calculated to be of 819 ka. This suggests that the age of the CP12a/b boundary, and hence that of the Early/Middle Eocene boundary, is 47.76 Ma, 250 ka younger than previously thought. This age agrees with, and is supported by, estimates from Gorrondatxe based on the time lapse between the Lutetian GSSP and the C21r/C21n boundary. The duration of Chron C21r is estimated at 1.326 Ma. Given that the base of the Eocene is dated at 55.8 Ma, the duration of the Early Eocene is of 8 Ma, 0.8 Ma longer than in current time scales. The Otsakar results further show that the bases of planktic foraminiferal zones E8 and P10 are younger than the CP12a/b boundary. The first occurrence of Turborotalia frontosa, being approximately 550 ka older that the CP12a/b boundary, is the planktic foraminiferal event that lies closest to the Early/Middle Eocene boundary. The larger foraminiferal SBZ12/13 boundary is located close to the CP12a/b boundary and correlates with Chron C21r, not with the C22n/C21r boundary.en
dc.language.isoEnglishen
dc.publisher.nameBerichte der Geologischen Bundesanstalten
dc.relation.ispartofClimate and Biota of the Early Paleogeneen
dc.subjectLutetianen
dc.subjectGorrondatxeen
dc.titleCyclostratigraphy of the Early/Middle Eocene transition: a Pyrenean perspectiveen
dc.typeAbstracten
dc.description.statusPublisheden
dc.identifier.URLhttp://www.geologie.ac.at/cbep2011/jpg/CBEP_2011_Abstractsen
dc.subject.INGV04. Solid Earth::04.04. Geology::04.04.10. Stratigraphyen
dc.description.ConferenceLocationSalzburg (Austria)en
dc.relation.referencesPayros et al. (2011): Geological Magazine, doi:10.1017/S0016756810000890en
dc.description.obiettivoSpecifico2.2. Laboratorio di paleomagnetismoen
dc.description.fulltextopenen
dc.contributor.authorPayros, A.en
dc.contributor.authorDinarès-Turell, J.en
dc.contributor.authorBernaola, G.en
dc.contributor.authorOrue-Etxebarria, Uniersidad del País Vascoen
dc.contributor.authorApellaniz, E.en
dc.contributor.authorTosquella, J.en
dc.contributor.departmentUniversidad del País Vascoen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
dc.contributor.departmentUniversidad del País Vascoen
dc.contributor.departmentUniversidad del País Vascoen
dc.contributor.departmentUniversidad de Huelvaen
dc.contributor.editorEgger, Hansen
dc.contributor.editordepartmentUniv. of Salzburgen
item.openairetypeAbstract-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextopen-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
crisitem.author.deptDepartment of Stratigraphy and Palaeontology, Faculty of Science and Technology, University of the Basque Country, PO Box 644, E-48080 Bilbao, Spain-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italia-
crisitem.author.deptDepartment of Stratigraphy and Palaeontology, Faculty of Science and Technology, University of the Basque Country, PO Box 644, E-48080 Bilbao, Spain-
crisitem.author.deptEstratigrafía-Paleontología, Fac. Ciencias, UPV/EHU, P.O. Box 644, 48080 Bilbao, Spain-
crisitem.author.deptDepartamento de Estratigrafía y Paleontología, Facultad de Ciencia y Tecnología, Universidad del País Vasco, P.O. Box 644, E-48080 Bilbao, Spain-
crisitem.author.deptDepartment of Geodynamics and Palaeontology, Faculty of Experimental Sciences, University of Huelva, Campus del Carmen, Avenida de las Fuerzas Armadas s/n, E-21071 Huelva, Spain-
crisitem.author.orcid0000-0002-5546-2291-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.classification.parent04. Solid Earth-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
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