| Summary: | X Congreso Geológico de España, 5-7 de julio 2021, Vitoria-Gasteiz.-- 1 page [EN] We present a new classification of geological domains at the Africa-Eurasia plate boundary off SW Iberia, together with a regional geodynamic reconstruction spanning from the Mesozoic extension to the Neogene-to-present-day convergence (Martínez-Loriente et al., 2014). It is based on seismic velocity and density models along two regional wide-angle seismic transects, combined with previously available information. The integration of all this information allows defining the presence of 3 oceanic domains off SW-Iberia: (1) the SAP domain, made of oceanic crust generated during the first stages of slow seafloor spreading in the NE Central Atlantic (Early Jurassic) (Martínez-Loriente et al., 2014); (2) the GC domain, made of oceanic crust generated in the Alpine-Tethys spreading system between Iberia and Africa, which was coeval with the formation of the SAP domain and lasted up to the North Atlantic continental break-up (Late Jurassic); and (3) the Gorringe Bank (GB) domain, mainly made of rocks exhumed from the mantle with little synchronous magmatism, which formed during the first stages of North Atlantic opening. Our models suggest that the SAP and GC domains are separated by the Lineament South strike-slip fault, whereas the GC and GB domains appear to be limited by a deep thrust fault located at the center of the Horseshoe Abyssal Plain (Martínez-Loriente et al., 2014) [ES] Presentamos una nueva clasificación de dominios geológicos en el límite de placas África-Eurasia al suroeste de Iberia, junto con una reconstrucción geodinámica regional que abarca desde la extensión Mesozoica hasta la convergencia actual (Martínez-Loriente et al., 2014). Los resultados se basan en modelos de velocidad sísmica y densidad a lo largo de dos transectos regionales de gran ángulo, combinados con información previa disponible. La integración de toda la información nos permite definir 3 dominios oceánicos al suroeste de Iberia: (1) el dominio ...
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