Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/136531
Título: Age, duration and spatial distribution of ocean shields and rejuvenated volcanism: Fuerteventura and Lanzarote, Eastern Canaries
Autores/as: Guillou, H.
Fernandez-Turiel, J. L.
Perez-Torrado, F. J. 
Carracedo, J. C. 
Rodríguez-González, A. 
Clasificación UNESCO: 2510 Oceanografía
250621 Vulcanología
250619 Estratigrafía
Palabras clave: Atlantic Ocean Islands
Canary Islands
Cenozoic
Hot spots
Neogene, et al.
Fecha de publicación: 2023
Publicación seriada: Journal of the Geological Society (London) 
Resumen: Fuerteventura and Lanzarote form the oldest emerged part of the Eastern Canary Islands archipelago. Geologically, they can be considered a single edifice, constituting a continuous volcanic ridge extending 250 km from SW to NE. This study completes the dating and the determination of the magnetic stratigraphy of the shields and the rejuvenated volcanism of Fuerteventura and Lanzarote, refining the volcanic stratigraphy and cartography. The new unspiked K–Ar ages and magnetostratigraphy of Fuerteventura and Lanzarote indicate that these islands developed patterns similar to those of the Central and Western Canary Islands, building adjacent and successively superimposed basaltic shield volcanoes during the Miocene, between 20.19 ± 0.30 and 6.30 ± 0.11 Ma. The overlay of post-Miocene rejuvenated volcanism hinders determination of the extent and interrelationship of the shields. These materials constitute only a small fraction by volume but cover a large part of the islands. Despite this, it is confirmed that the disposition of the shields is opposite to the insular progression induced by the hotspot, suggesting the presence of some SW–NE propagation volcanic front or fracture to explain its direction of development.
URI: http://hdl.handle.net/10553/136531
ISSN: 0016-7649
DOI: 10.1144/jgs2022-112
Fuente: Journal of the Geological Society (London) [ISSN 0016-7649, eISSN 2041-479X], v. 180, n. 4, (Junio 2023)
Colección:Artículos
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