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From strike-slip to reverse reactivation : the Crevillente Fault System and seismicity in the Bullas-Mula area (Betic Cordillera, SE Spain)
Sanz de Galdeano, C. (Universidad de Granada. Facultad de Ciencias)
Buforn, E. (Universidad Complutense de Madrid. Departamento de Geofísica y Meteorología)
Consejo Superior de Investigaciones Científicas (Espanya). Instituto Andaluz de Ciencias de la Tierra

Date: 2005
Abstract: Several major N80ºE faults occur in the Bullas-Mula area (SE Spain). These faults and the numerous thrust slices of the Sierra de Ricote can be related to the movements of the Crevillente (or Cadiz-Alicante) fault system, which causes the westward displacement of the Betic Internal Zone and part of the External Zone. These faults moved with dextral strike-slip from Late Burdigalian to Early Tortonian. From this time on, the s1 position changed from a WNW-ESE direction to approximately N-S, giving rise to movements with a new reverse character. The focal mechanisms of the 1999 Mula earthquakes indicate a N80ºE nodal plane, and their pressure axes also coincide with the s1 direction existing from the Late Miocene and deduced from mesotectonic analysis at many points of the region. There is also good coincidence between their epicentral position and the fault traces. The Bullas earthquakes that occurred in 2002 are not directly related to the Crevillente faults, although their stress-pressure axes coincide with the s1 direction reported there.
Rights: Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan aquestes es distribueixin sota la mateixa llicència que regula l'obra original i es reconegui l'autoria de l'obra original. Creative Commons
Language: Anglès
Document: Article ; recerca ; Versió publicada
Subject: Betic Cordillera ; Crevillente Fault ; Mula earthquakes ; Neotectonics
Published in: Geologica acta, Vol. 3, Núm. 3 (2005) , p. 241-250, ISSN 1696-5728

Adreça alternativa: https://raco.cat/index.php/GeologicaActa/article/view/82306
Adreça alternativa: https://revistes.ub.edu/index.php/GEOACTA/article/view/105.000001394
DOI: 10.1344/105.000001394


10 p, 1.1 MB

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Articles > Published articles > Geologica acta
Articles > Research articles

 Record created 2012-01-31, last modified 2024-02-20



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