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Tectonic classification of Cenozoic Iberian foreland basins Vicente Muñoz, Gerardo De Cloetingh, S. Van Wees, J.D. Cunha, P.P. © 2011 Elsevier B.V. All rights reserved. Received 18 September 2009 / Received in revised form 15 July 2010 / Accepted 14 February 2011 / Available online 2 March 2011. Corresponding author. Tel. +34 913944827. / E-mail address: gdv@geo.ucm.es (G. De Vicente). 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. 2023-11-07T18:46:45Z 2023-11-07T18:46:45Z 2011 journal article De Vicente, G., et al. «Tectonic Classification of Cenozoic Iberian Foreland Basins». Tectonophysics, vol. 502, n.o 1-2, abril de 2011, pp. 38-61. DOI.org (Crossref), https://doi.org/10.1016/j.tecto.2011.02.007. 10.1016/j.tecto.2011.02.007 https://hdl.handle.net/20.500.14352/88631 https://doi.org/10.1016/j.tecto.2011.02.007 http://www.journals.elsevier.com/tectonophysics/ eng info:eu-repo/grantAgreement/CSD2006-00041 info:eu-repo/grantAgreement/CGL2006-13926-C02-01-02 restricted access Elsevier