Person:
Córdoba Barba, Diego

Profile Picture
First Name
Diego
Last Name
Córdoba Barba
URI
https://hdl.handle.net/20.500.14352/75149
Affiliation
Universidad Complutense de Madrid
Faculty / Institute
Ciencias Físicas
Department
Física de la Tierra y Astrofísica
Area
Física de la Tierra
Identifiers
UCM identifierORCIDScopus Author IDWeb of Science ResearcherIDDialnet ID

Filters

1998 - 199912000 - 20081
Reset filters

Settings

Author: Córdoba Barba, Diego × Subject: 550.34 ×

Search Results

Now showing 1 - 2 of 2
  • Thumbnail Image
    Item
    Seismic crustal structure in the southwest of the Iberian Peninsula and the Gulf of Cadiz
    (Tectonophysics, 1998) González Fernández, Antonio; Córdoba Barba, Diego; Vegas, Ramón; Matías, Luis Manuel
    The crust under the southwestern Iberian Peninsula and the Gulf of Cadiz has been sampled by 1200 km of deep seismic refraction=wide-angle reflection profiles, together with many seismic reflection lines and bore-holes. Wide-angle seismic data were collected during the last three decades. Commercial multichannel data provide a detailed image of the uppermost crust, improving the confidence about the models of the deeper structures. P-wave velocities within the thick column of sediments in the Gulf of Cadiz range from 2.0 to 3.8 km=s, while the Algarve and the Sines areas have higher velocities of 4.3 to 4.8 km=s. The top of the Palaeozoic basement rises to the northwest, outcropping in the South Portuguese zone of the Iberian Massif, and is characterized by P-wave velocities of 5.7–5.9 km=s. High velocities of 6.4 km=s have been found at shallow depths of 7 to 10 km in the South Portuguese zone, that could be related to the mafic and ultramafic rocks in the Beja-Acebuches zone. Lower crustal velocities are in the range of 6.7–6.9 km=s. The crustal thickness shows important lateral changes from 29 km beneath the Guadalquivir Basin=Iberian Massif contact to 35 km in the southeastern part of the South Portuguese zone. From the interpretation of these seismic data, a geodynamic model of the evolution of the crust in Southwestern Iberia and the Gulf of Cadiz is proposed. The Guadalquivir Basin, and its continuation at sea, the Gulf of Cadiz, is a flexure area of the crust that could be related to the overloading due to the overthrusting of the Alboran Domain over the Iberian plate.
  • Thumbnail Image
    Item
    IBERARRAY: La componente sísmica del proyecto TopoIberia
    (Geotemas, 2008) Morales Soto, José; Pazos, Antonio; García Lobón, J.L.; Córdoba Barba, Diego; Álvarez Pulgar, Francisco Javier; Carbonell Beltrán, Ramón; Villaseñor Rodríguez, Isabel; Díaz Cusí, Jordi; Gaite Castrillo, Beatriz; Gallart Muset, Josep
    Iberarray, componente sísmica del proyecto TopoIberia, está formada por una red densa de estaciones sísmicas de banda ancha y alta resolución a semejanza del USarray del proyecto Earthscope. Los objetivos que se persiguen con la instalación de Iberarray es estudiar la relación que existe entre los procesos que tienen lugar a escala litosférica y en la corteza de la península Ibérica, mar de Alborán y norte de Marruecos. Esta red está dedicada fundamentalmente a generar una base de datos de formas de onda con una resolución sin precedentes en una zona de especial interés geodinámico como es la región del contacto de placas continentales de Eurasia y Africa. Esta red está ya instalada en su primera fase, hasta 38.5º de Latitud, conformando una malla de 50x50 km entre estaciones. Iberarray está constituida por 50 estaciones de banda ancha más las aportaciones de las redes permanentes en la zona (IAG-UGR,ROA) y las redes portátiles del IAG-UGR y del ICT-CSIC. Iberarray es el brazo sísmico del proyecto multidisciplinar TopoIberia.