• journal_title：Geology
• Contributor：J. Morales ; I. Serrano ; A. Jabaloy ; J. Galindo-Zaldívar ; D. Zhao ; F. Torcal ; F. Vidal ; F. González Lodeiro
• Publisher：Geological Society of America
• Date：1999-
• Format：text/html
• Language：en
• Identifier：10.1130/0091-7613(1999)027<0735:ACSBTB>2.3.CO;2
• journal_abbrev：Geology
• issn：0091-7613
• volume：27
• issue：8
• firstpage：735

P- and S-wave seismic tomography detect a low-velocity anomaly in the upper mantle beneath the Betic Cordillera and the Alborán 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.