
handle: 10261/92021 , 10261/93574
[EN] The Mediterranean realm is characterized by Neogene tectonically-imbricated arcs and their corresponding basin systems. Although the structures have been the locus of numerous projects, and some arcs and basin deposits have been well studied, particularly in outcrops onshore, most basin-arc pair systems lack modern, comprehensive geophysical studies. The lack of data precludes any detailed knowledge of crust and mantle structure, of the nature of the basement, and thus the understanding of their tectonic structure and sedimentary deposits is thus incomplete. The limited geophysical information has restrained the study of the interplay between tectonic, magmatic, and sedimentary processes in those complex systems. During the last 6 years an initiative lead by scientists from the Spanish National Research Council (CSIC) in Barcelona and international collaborators has collected an extensive geophysical data base across the Gulf of Cadiz, and the Alborán, South Balearic, and Tyrrhenian basins. The new wide-angle seismic data, deep-penetration multichannel seismic reflection images, and high resolution seismic reflection records demonstrate a surprising variability in nature of crust and tectonic structure that controlled the formation of the systems, and the distribution of active faulting across the regions
[ES] El dominio mediterráneo se caracteriza por sistemas Neógenos de pares de arcos imbricados tectónicamente y sus cuencas sedimentarias asociadas. Aunque estos sistemas han sido tema de numerosos proyectos y algunos pares arco-cuenca, particularmente en tierra, están bien estudiados, la mayoría carecen de estudios geofísicos modernos y extensivos. La falta de datos impide el conocimiento detallado de la estructura cortical y mantélica y por tanto el conocimiento de su estructura tectónica y depósitos sedimentarios es incompleto. Esta información geofísica limitada ha frenado la comprensión de la interacción entre los procesos tectónicos, magmáticos y sedimentarios de estos sistemas complejos. Durante los últimos 6 años, una iniciativa liderada por científicos del CSIC de Barcelona y colaboradores internacionales ha generado una extensa base de datos geofísica a lo largo del Golfo de Cádiz y de las cuencas de Alborán, Sud-Balear y del Tirreno. Los nuevos datos de sísmica de gran ángulo, multicanal de reflexión de gran penetración y multicanal de reflexión de alta resolución, muestran una variabilidad sorprendentemente notable de la naturaleza de la corteza y la estructura tectónica que controló la formación de los sistemas, así como de la distribución de las fallas activas a lo largo de estas regiones
These studies have been supported through projects CGL2006-12861-C02-02, CTM2007-66179-C02-01/MAR CTM2008-04938-E/MAR, CTM2008-03346-E/MAR, CTM2008-03208-E/MAR,CGL2008-03474-E/BTE, CTM2009-07772-E/MAR, CGL2011-30005-C02-02, Grups de Recerca de la Generalitat de Catalunya B-CSI 2009 SGR 146
Ranero, César R. ... et. al.-- VIII Congreso Geológico de España, 2012, Oviedo.-- 4 pages, 8 figures
Peer Reviewed
Western Mediterranean, Campañas de sísmica y magnetotelurica marina, Marine seismic and magnetoteluric surveys, Mediterráneo occidental, Arc and basin, Arcos y cuencas
Western Mediterranean, Campañas de sísmica y magnetotelurica marina, Marine seismic and magnetoteluric surveys, Mediterráneo occidental, Arc and basin, Arcos y cuencas
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