Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/101972
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | High-resolution imaging of the Pyrenees and Massif Central from the data of the PYROPE and IBERARRAY portable array deployments |
Autor: | Chevrot, S.; Villaseñor, Antonio CSIC ORCID CVN ; Sylvander, Matthieu; Benahmed, S.; Beucler, E.; Cougoulat, G.; Delmas, P.; De Saint Blanquat, M.; Diaz, J. CSIC ORCID ; Gallart Muset, Josep CSIC ORCID | Palabras clave: | seismic tomography lithosphere pyrenees |
Fecha de publicación: | ago-2014 | Editor: | American Geophysical Union | Citación: | Journal of Geophysical Research: Solid Earth, 119: (2014) | Resumen: | The lithospheric structures beneath the Pyrenees, which holds the key to settle long-standing controversies regarding the opening of the Bay of Biscay and the formation of the Pyrenees, are still poorly known. The temporary PYROPE and IBERARRAY experiments have recently filled a strong deficit of seismological stations in this part of western Europe, offering a new and unique opportunity to image crustal and mantle structures with unprecedented resolution. Here we report the results of the first tomographic study of the Pyrenees relying on this rich data set. The important aspects of our tomographic study are the precision of both absolute and relative traveltime measurements obtained by a nonlinear simulated annealing waveform fit and the detailed crustal model that has been constructed to compute accurate crustal corrections. Beneath the Massif Central, the most prominent feature is a widespread slow anomaly that reflects a strong thermal anomaly resulting from the thinning of the lithosphere and upwelling of the asthenosphere. Our tomographic images clearly exclude scenarios involving subduction of oceanic lithosphere beneath the Pyrenees. In contrast, they reveal the segmentation of lithospheric structures, mainly by two major lithospheric faults, the Toulouse fault in the central Pyrenees and the Pamplona fault in the western Pyrenees. These inherited Hercynian faults were reactivated during the Cretaceous rifting of the Aquitaine and Iberian margins and during the Cenozoic Alpine convergence. Therefore, the Pyrenees can be seen as resulting from the tectonic inversion of a segmented continental rift that was buried by subduction beneath the European plate. | Versión del editor: | http://dx.doi.org/10.1002/2014JB010953 | URI: | http://hdl.handle.net/10261/101972 | DOI: | 10.1002/2014JB010953 | ISSN: | 2169-9356 |
Aparece en las colecciones: | (Geo3Bcn) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
Villaseñor_2014_Journal_of_Geophysical_Research_Solid_Earth_119.pdf | 3,26 MB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
84
checked on 16-abr-2024
WEB OF SCIENCETM
Citations
81
checked on 24-feb-2024
Page view(s)
327
checked on 23-abr-2024
Download(s)
300
checked on 23-abr-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.