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Magnetobiochronology of Lower Pliocene marine sediments from the lower Guadalquivir Basin: Insights into the tectonic evolution of the Strait of Gibraltar area

2018; Geological Society of America; Linguagem: Inglês

10.1130/b31892.1

1943-2674

José N. Pérez‐Asensio, Juan C. Larrasoaña, Elias Samankassou, Francisco Javier Sierro, Daniel García‐Castellanos, Gonzalo Jiménez‐Moreno, Ángel Salazar, Josep Maria Salvany, Santiago Ledesma, M. Pilar Mata, Jorge Civis, Carlos Marcelo Ávila-Mediavilla,

earthquake and tectonic studies

Research Article| May 08, 2018 Magnetobiochronology of Lower Pliocene marine sediments from the lower Guadalquivir Basin: Insights into the tectonic evolution of the Strait of Gibraltar area José N. Pérez-Asensio; José N. Pérez-Asensio † 1Department of Earth Sciences, University of Geneva, Rue des Maraîchers 13, 1205 Geneva, Switzerland2GRC Geociències Marines, Departament de Dinàmica de la Terra i de l'Oceà, Facultat de Ciències de la Terra, Universitat de Barcelona, Carrer Martí i Franquès s/n, 08028 Barcelona, Spain †Present address: GRC Geociències Marines, Departament de Dinàmica de la Terra i de l'Oceà, Facultat de Ciències de la Terra, Universitat de Barcelona, Carrer Martí i Franquès s/n, 08028 Barcelona, Spain; jn.perezasensio@ub.edu. Search for other works by this author on: GSW Google Scholar Juan C. Larrasoaña; Juan C. Larrasoaña 3Instituto Geológico y Minero de España, Unidad de Zaragoza, Manuel Lasala 44, 50006 Zaragoza, Spain4Institute of Earth Sciences Jaume Almera, Consejo Superior de Investigaciones Científicas, Carrer Solé i Sabarís s/n, 08028 Barcelona, Spain Search for other works by this author on: GSW Google Scholar Elias Samankassou; Elias Samankassou 1Department of Earth Sciences, University of Geneva, Rue des Maraîchers 13, 1205 Geneva, Switzerland Search for other works by this author on: GSW Google Scholar Francisco J. Sierro; Francisco J. Sierro 5Department of Geology, University of Salamanca, 37008 Salamanca, Spain Search for other works by this author on: GSW Google Scholar Daniel Garcia-Castellanos; Daniel Garcia-Castellanos 4Institute of Earth Sciences Jaume Almera, Consejo Superior de Investigaciones Científicas, Carrer Solé i Sabarís s/n, 08028 Barcelona, Spain Search for other works by this author on: GSW Google Scholar Gonzalo Jiménez-Moreno; Gonzalo Jiménez-Moreno 6Departamento de Estratigrafía y Paleontología, Universidad de Granada, Fuente Nueva s/n, 18002 Granada, Spain Search for other works by this author on: GSW Google Scholar Ángel Salazar; Ángel Salazar 7Instituto Geológico y Minero de España, La Calera 1, 28760 Tres Cantos, Madrid, Spain Search for other works by this author on: GSW Google Scholar Josep Maria Salvany; Josep Maria Salvany 8Departament d'Enginyeria Civil i Ambiental, Universitat Politècnica de Catalunya, Carrer Jordi Girona 31, 08034 Barcelona, Spain Search for other works by this author on: GSW Google Scholar Santiago Ledesma; Santiago Ledesma 9Gas Natural Fenosa, Avenida San Luis 77, 28033 Madrid, Spain Search for other works by this author on: GSW Google Scholar M. Pilar Mata; M. Pilar Mata 7Instituto Geológico y Minero de España, La Calera 1, 28760 Tres Cantos, Madrid, Spain Search for other works by this author on: GSW Google Scholar Jorge Civis; Jorge Civis 5Department of Geology, University of Salamanca, 37008 Salamanca, Spain Search for other works by this author on: GSW Google Scholar Carlos Mediavilla Carlos Mediavilla 10Instituto Geológico y Minero de España, Plaza de España, Torre Norte, 41013 Sevilla, Spain Search for other works by this author on: GSW Google Scholar Author and Article Information José N. Pérez-Asensio † 1Department of Earth Sciences, University of Geneva, Rue des Maraîchers 13, 1205 Geneva, Switzerland2GRC Geociències Marines, Departament de Dinàmica de la Terra i de l'Oceà, Facultat de Ciències de la Terra, Universitat de Barcelona, Carrer Martí i Franquès s/n, 08028 Barcelona, Spain Juan C. Larrasoaña 3Instituto Geológico y Minero de España, Unidad de Zaragoza, Manuel Lasala 44, 50006 Zaragoza, Spain4Institute of Earth Sciences Jaume Almera, Consejo Superior de Investigaciones Científicas, Carrer Solé i Sabarís s/n, 08028 Barcelona, Spain Elias Samankassou 1Department of Earth Sciences, University of Geneva, Rue des Maraîchers 13, 1205 Geneva, Switzerland Francisco J. Sierro 5Department of Geology, University of Salamanca, 37008 Salamanca, Spain Daniel Garcia-Castellanos 4Institute of Earth Sciences Jaume Almera, Consejo Superior de Investigaciones Científicas, Carrer Solé i Sabarís s/n, 08028 Barcelona, Spain Gonzalo Jiménez-Moreno 6Departamento de Estratigrafía y Paleontología, Universidad de Granada, Fuente Nueva s/n, 18002 Granada, Spain Ángel Salazar 7Instituto Geológico y Minero de España, La Calera 1, 28760 Tres Cantos, Madrid, Spain Josep Maria Salvany 8Departament d'Enginyeria Civil i Ambiental, Universitat Politècnica de Catalunya, Carrer Jordi Girona 31, 08034 Barcelona, Spain Santiago Ledesma 9Gas Natural Fenosa, Avenida San Luis 77, 28033 Madrid, Spain M. Pilar Mata 7Instituto Geológico y Minero de España, La Calera 1, 28760 Tres Cantos, Madrid, Spain Jorge Civis 5Department of Geology, University of Salamanca, 37008 Salamanca, Spain Carlos Mediavilla 10Instituto Geológico y Minero de España, Plaza de España, Torre Norte, 41013 Sevilla, Spain †Present address: GRC Geociències Marines, Departament de Dinàmica de la Terra i de l'Oceà, Facultat de Ciències de la Terra, Universitat de Barcelona, Carrer Martí i Franquès s/n, 08028 Barcelona, Spain; jn.perezasensio@ub.edu. Publisher: Geological Society of America Received: 20 Jul 2017 Revision Received: 14 Feb 2018 Accepted: 03 Apr 2018 First Online: 08 May 2018 Online Issn: 1943-2674 Print Issn: 0016-7606 © 2018 Geological Society of America GSA Bulletin (2018) 130 (11-12): 1791–1808. https://doi.org/10.1130/B31892.1 Article history Received: 20 Jul 2017 Revision Received: 14 Feb 2018 Accepted: 03 Apr 2018 First Online: 08 May 2018 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation José N. Pérez-Asensio, Juan C. Larrasoaña, Elias Samankassou, Francisco J. Sierro, Daniel Garcia-Castellanos, Gonzalo Jiménez-Moreno, Ángel Salazar, Josep Maria Salvany, Santiago Ledesma, M. Pilar Mata, Jorge Civis, Carlos Mediavilla; Magnetobiochronology of Lower Pliocene marine sediments from the lower Guadalquivir Basin: Insights into the tectonic evolution of the Strait of Gibraltar area. GSA Bulletin 2018;; 130 (11-12): 1791–1808. doi: https://doi.org/10.1130/B31892.1 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGSA Bulletin Search Advanced Search Abstract The Gibraltar Arc is a complex tectonic region, and several competing models have been proposed to explain its evolution. We studied the sedimentary fill of the Guadalquivir Basin to identify tectonic processes that were occurring when the reopening of the Strait of Gibraltar led to the reestablishment of Mediterranean outflow. We present a chronostratigraphic framework for the Lower Pliocene sediments from the lower Guadalquivir Basin (SW Spain). The updated chronology is based on magnetobiostratigraphic data from several boreholes. Our results show that the studied interval in the La Matilla core is in the early Pliocene section, providing better constraints on the sedimentary evolution of the basin during that period. Migrating depositional facies led to a younger onset of sandy deposition basinward. At the northwestern passive margin, a 0.7 m.y. period of sedimentary bypass related to a sharp decrease in sedimentation rates and lower sea levels resulted from the tectonic uplift of the forebulge. In contrast, high sedimentation rates with continuous deep-marine sedimentation are recorded at the basin center due to continuous tectonic subsidence and west-southwestward progradation of axial depositional systems. The marginal forebulge uplift, continuous tectonic basinal subsidence, and southward progradation of clinoforms in the early Pliocene can be explained by the pull of a lithospheric slab beneath the Gibraltar Arc as the Strait of Gibraltar opened. These findings are, to our knowledge, the first reported sedimentary expression of slab pull beneath the Betics related to the opening of the Strait of Gibraltar after the Messinian salinity crisis. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.