Active continental subduction beneath the Betic Cordillera and the Alboran Sea

J. Morales, I. Serano, A. Jabaloy, J. Galindo-Zaldívar, D. Zhao, F. Torcal, F. Vidal, F. González-Lodeiro

Research output: Contribution to journalArticlepeer-review

114 Citations (Scopus)

Abstract

P- and S-wave seismic tomography detect a low-velocity anomaly in the upper mantle beneath the Betic Cordillera and the Alboran Sea region. The anomaly is associated with the intermediate-depth seismicity (h < 110 km) in the region. This structure is interpreted as a result of an active continental subduction. Gravity modeling and seismic attenuation also show the continental nature of the low-velocity zone. Stresses determined from the focal mechanisms of the intermediate-depth earthquakes also agree with the scenario of continental subduction, which is caused by the middle-late Miocene to present-day northwest-southeast convergence of the African and European plates and the continental collision that raised the cordillera.

Original languageEnglish
Pages (from-to)735-738
Number of pages4
JournalGeology
Volume27
Issue number8
DOIs
Publication statusPublished - 1999 Aug
Externally publishedYes

ASJC Scopus subject areas

  • Geology

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