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http://hdl.handle.net/2445/34510
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DC Field | Value | Language |
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dc.contributor.author | Costa Gisbert, Elisenda | - |
dc.contributor.author | Garcés Crespo, Miguel | - |
dc.contributor.author | Sáez, Alberto | - |
dc.contributor.author | Cabrera, Lluís | - |
dc.contributor.author | López Blanco, Miguel | - |
dc.date.accessioned | 2013-04-10T17:35:19Z | - |
dc.date.available | 2013-04-10T17:35:19Z | - |
dc.date.issued | 2011 | - |
dc.identifier.issn | 0031-0182 | - |
dc.identifier.uri | http://hdl.handle.net/2445/34510 | - |
dc.description.abstract | The Grande Coupure represents a major terrestrial faunal turnover recorded in Eurasia associated with the overall climate shift at the Eocene-Oligocene transition. During this event, a large number of European Eocene endemic mammals became extinct and new Asian immigrants appeared. The absolute age of the Grande Coupure, however, has remained controversial for decades. The Late Eocene-Oligocene continental record of the Eastern Ebro Basin (NE Spain) constitutes a unique opportunity to build a robust magnetostratigraphy- based chronostratigraphy which can contribute with independent age constraints for this important turnover. This study presents new magnetostratigraphic data of a 495-m-thick section (Moià-Santpedor) that ranges from 36.1 Ma to 33.3 Ma. The integration of the new results with previous litho- bio- and magnetostratigraphic records of the Ebro Basin yields accurate ages for the immediately pre- and post-Grand Coupure mammal fossil assemblages found in the study area, bracketing the Grande Coupure to an age embracing the Eocene-Oligocene transition, with a maximum allowable lag of 0.5 Myr with respect to this boundary. The shift to drier conditions that accompanied the global cooling at the Eocene-Oligocene transition probably determined the sedimentary trends in the Eastern Ebro Basin. The occurrence and expansion of an amalgamated-channel sandstone unit is interpreted as the forced response of the fluvial fan system to the transient retraction of the central-basin lake systems. The new results from the Ebro Basin allow us to revisit correlations for the controversial Eocene-Oligocene record of the Hampshire Basin (Isle of Wight, UK), and their implications for the calibration of the Mammal Palaeogene reference levels MP18 to MP21. | - |
dc.format.extent | 11 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Elsevier B.V. | - |
dc.relation.ispartof | Palaeogeography Palaeoclimatology Palaeoecology, 2011, vol. 301, num. 1-4, p. 97-107 | - |
dc.rights | (c) Elsevier B.V., 2011 | - |
dc.source | Articles publicats en revistes (Dinàmica de la Terra i l'Oceà) | - |
dc.subject.classification | Mamífers fòssils | - |
dc.subject.classification | Eocè | - |
dc.subject.classification | Oligocè | - |
dc.subject.classification | Ebre, Depressió de l' | - |
dc.subject.other | Fossil mammals | - |
dc.subject.other | Eocene Epoch | - |
dc.subject.other | Oligocene | - |
dc.subject.other | Ebro River Watershed (Spain) | - |
dc.title | The age of the"Grande Coupure" mammal turnover: New constraints from the Eocene Oligocene record of the Eastern Ebro Basin (NE Spain.) | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/acceptedVersion | - |
dc.identifier.idgrec | 584168 | - |
dc.date.updated | 2013-04-10T17:35:19Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Dinàmica de la Terra i l'Oceà) |
Files in This Item:
File | Description | Size | Format | |
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584168.pdf | 1.94 MB | Adobe PDF | View/Open |
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