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Eocene-Oligocene magnetostratigraphy from the central part of the SE margin of the Ebro Basin
Costa Gisbert, Elisenda; Gómez Paccard, M.; López Blanco, Miguel; Garcés Crespo, Miguel; Beamud Amorós, Elisabet; Larrasoaña, J.C.; Cabrera, Lluís
Universitat de Barcelona
Previous magnetostratigraphic studies focused in the Eocene successions of the eastern Ebro Basin have provided some absolute age for the basin infill. These results were based on some biostratigraphic constraints wich have been recently challenged. Our new results from the approximately 3000 m thick Montserrat and Maians-Rubió magnetostratigraphic sections have been integrated into the both marine and continental biochronology data, providing a more independent chronology. The resulting absolute chronology of the Montserrat-Rubió composite section represents about 10 My, covering the Lutetian to Rupelian (approximately 40.7 to 30.5 Ma). This leads to the re-evaluation of the age of the La Salut Fm. (Lutetian to Bartonian) and the Montserrat conglomerates (Bartonian to Priabonian). The last marine regression in the central part of the SE margin of the Ebro Basin yields an approximate age of about 36.0 Ma (Priabonian).
Paleomagnetisme
Estratigrafia
Ebre, Conca de l'
Paleomagnetism
Stratigraphic geology
Ebro River Watershead
(c) Sociedad Geológica de España, 2008
Artículo
info:eu-repo/semantics/publishedVersion
Sociedad Geológica de España
         

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