Resumen de The ALCUDIA Seismic Profile: an image of the Central Iberian Zone (Southern Iberian Variscides, Spain)

Rosa María Tejero López, Ramon Carbonell Bertran, María Puy Ayarza Arribas, José Luis García Lobón, Pablo González Cuadra, Francisco González Lodeiro, Antonio Jabaloy Sánchez, Luis Miguel Martín Parra, David Jesús Martínez Poyatos, Jerónimo Matas, I. Pérez Estaún Palomeras, José Fernando Simancas Cabrera

• Dedicamos este trabajo a nuestro compañero Ángel Pelayo, del equipo de adquisición de ALCUDIA, recientemente fallecido. Abstract: The 250 km long, vertical incidence seismic reflection profile ALCUDIA was acquired in spring 2007. It samples the Variscan Central Iberian Zone from Toledo to Fuenteovejuna. Its main goal was to continue the structure obtained for the crust and mantle from the IBERSEIS transect towards the N and NE. The acquisition parameters, similar to those used in the IBERSEIS profile have proven to be adequate to show a detailed image of the whole crust and upper mantle. After preliminary processing, the upper crust shows a moderate reflectivity that can be easily correlated with identifiable surface geologic features. The middle and lower part of the crust seems to be very reflective, laminated and afected by deformation, although to a different extent. The Moho is placed at approximately 10 s TWT and appears to be flat in the time section. The section can be divided into four domains of reflectivity that can be key to stablish different domains of crustal evolution. This new transect, together with the previous IBERSEIS profile, complete an almost 600 km long lithospheric section that crosses the southern half of the Iberian Variscides. Key words: Deep seismic