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Title: Tectonic classification of Cenozoic Iberian foreland basins
Authors: De Vicente, G. 
Cloetingh, S. 
Van Wees, J. D. 
Cunha, Pedro P. 
Issue Date: 2011
Publisher: Elsevier
Citation: De Vicente, G.; Cloetingh, S.; Van Wees, J.D.; Cunha, Pedro P.Tectonic classification of Cenozoic Iberian foreland basins. Tectonophysics, 502, 1-2, 38-61, 2011.
Serial title, monograph or event: Tectonophysics
Volume: 502
Issue: 1-2
Abstract: The Iberian microcontinent stands out because of its intense Alpine intraplate deformation. This is reflected in a large number of Cenozoic basins of very different sizes. Most of the contacts between topographic highs and basins are thrust or strike-slip faults. All these basins seem to have undergone a common sedimentary evolution, comprising four stages: initiation of sedimentation, intense syn-tectonic infilling, change from endorheic to exorheic drainage, and accelerated erosion related to fluvial incision. This simple evolutionary model shows a migration from East to West, in which basins are still tectonically active at the Atlantic margin of Iberia. This common evolution is also found in a series of geometrical characteristics, such as the ratio r of length of strike-slip fault and length of thrust fault, that are very similar in both types of basin border settings. Thrust-related basins are mainly associated with segmented pop-downs, whereas the main basins have the characteristics of open-ramp basins. Strike-slip related basins are mostly transpressive structures, although small pull-apart basins are usual along the Vilariça and Messejana faults. For basin areas larger than 100– 1000 km2, a constant r value of 0.6 is found (including the Ebro, Duero, Madrid, Lower Tagus and Badajoz basins). Within the Iberian microcontinent, the total amount of Cenozoic contractional deformation was distributed between strike-slip and thrust faults with an r ratio close to 0.6. However, for small basins this parameter seems to depend on the type of fault, range or deformation belt (pure strike-slip, transtension, transpression, and pop-up) independently of its local tectonic development.
ISSN: 0040-1951
DOI: 10.1016/j.tecto.2011.02.007
Rights: openAccess
Appears in Collections:I&D MARE - Artigos em Revistas Internacionais
FCTUC Ciências da Terra - Artigos em Revistas Internacionais

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