Please use this identifier to cite or link to this item:
Authors: Pasquale, V.* 
Verdoya, M.* 
Chiozzi, P.* 
Title: Some geophysical constraints to dynamic processes in the Southwestern Mediterranean
Issue Date: Dec-1996
Series/Report no.: 6/39 (1996)
Keywords: marginal basin
heat-flux and seismotectonic data
lateral extrusion model
Algerian-Balearic and Alboran basins
Betic cordillera-Rif system
Subject Classification04. Solid Earth::04.07. Tectonophysics::04.07.99. General or miscellaneous 
Abstract: The total tectonic subsidence, thermal state and seismotectonic regime have been analysed to better constrain the dynamic processes which originated the basins of the Southwestern Mediterranean. It is argued that backarc extension and oceanic spreading are the possible and main processes which took place within a compressional framework, driven by the interaction between the African and European plates. As inferred by both subsidence and heat-flux data, in the central part of the Algerian-Balearic basin the crust is oceanic, 20 Ma old on average, originated by a spreading phase, which also affected the Ligurian-Provençal basin. The Alboran basin, which is underlain by stretched continental crust, shows an intermediate seismic activity and a few deep events, explainable by a gravitational collapse of cold lithosphere. After a review of the most recent geodynamical hypotheses, an evolutionary scheme is attempted envisaging the lateral continental escape of the Gibraltar arc. Within a convergent tectonic framework, some lithospheric material could translate almost perpendicular to the convergence direction, and undergo a lateral subduction process, secondary to the main boundary between plates.
Appears in Collections:Annals of Geophysics

Files in This Item:
File Description SizeFormat
07 pasquale.pdf5.09 MBAdobe PDFView/Open
Show full item record

Page view(s)

checked on May 25, 2022

Download(s) 10

checked on May 25, 2022

Google ScholarTM