Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/172145
COMPARTIR / EXPORTAR:
logo share SHARE logo core CORE BASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE

Invitar a revisión por pares abierta
Título

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

AutorPérez-Asensio, José Noel; Larrasoaña, Juan C. CSIC ORCID; Samankassou, E.; Sierro, Francisco Javier CSIC ORCID; García-Castellanos, Daniel CSIC ORCID ; Jiménez-Moreno, G.; Salazar Rincón, Ángel Enrique CSIC ORCID ; Salvany, J. M.; Ledesma, S.; Mata Campo, Maria Pilar; Civis Llovera, Jorge; Mediavilla Laso, Carlos
Palabras claveSea level
Sedimentation
Sedimentology
Stratigraphy
Submarine geology
Subsidence
Depositional system
Magnetobiochronology
Messinian salinity crisis
Pliocene sediments
Sedimentary evolution
Sedimentation rates
Strait of Gibraltar
Tectonic evolution
Fecha de publicaciónnov-2018
EditorGeological Society of America
CitaciónBulletin of the Geological Society of America, 130(11-12): 1791-1808 (2018)
ResumenThe 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. © 2018 Geological Society of America.
URIhttp://hdl.handle.net/10261/172145
DOI10.1130/B31892.1
ISSN0016-7606
E-ISSN1943-2674
Aparece en las colecciones: (Geo3Bcn) Artículos
(IGME) Artículos




Ficheros en este ítem:
Mostrar el registro completo

CORE Recommender

SCOPUSTM   
Citations

7
checked on 14-mar-2024

WEB OF SCIENCETM
Citations

8
checked on 25-feb-2024

Page view(s)

383
checked on 19-mar-2024

Download(s)

218
checked on 19-mar-2024

Google ScholarTM

Check

Altmetric

Altmetric


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.