Biblioteca de la Universidad Complutense de Madrid

Tectonics and mud volcano development in the Gulf of Cádiz

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Medialdea Cela, Teresa y Somoza Losada, Luis y Pinheiro, Luis Menezes y Fernández Puga, Mª Carmen y Vázquez Garrido, Juan Tomás y León Buendía, Ricardo y Ivanov, M.K. y Magalhaes, Vitor Hugo y Díaz del Río Español, Víctor y Vegas, Ramón (2009) Tectonics and mud volcano development in the Gulf of Cádiz. Marine geology, 261 . pp. 48-63. ISSN 0025-3227

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URL Oficial: http://www.elsevier.com/locate/margeo



Resumen

Many structures associated with fluid escape, including mud volcanoes, mud-carbonate mounds, pockmarks
and slides, have been identified and characterized in the Gulf of Cádiz. Most of the mud volcanoes following
NE–SW and NW–SE main trends are found at 350–2000 m depth in the eastern domain of the Gulf of Cádiz,
which corresponds to the Betic–Rifean Margin. Scattered mud volcanoes have also been recognized on the
lower slope at 2300–3900 m depth. The major tectonic structures are thrust faults, extensional faults, strikeslip
faults and diapirs. All these tectonic structures have provided escape pathways for overpressured
material and fluids or have favoured upward fluid movement along the sedimentary column and eventually
the build up of mud volcanoes. In this work we present images of the mud volcano plumbing systems and the
relationship between regional tectonics and mud volcano development. Seismic profiles acquired during the
TASYO 2000 and MVSEIS/TTR-15 cruises are used to image and interpret the link between the mud volcano
edifices and the subsurface tectonic structures.


Tipo de documento:Artículo
Palabras clave:Mud volcanoes; Hydrocarbon seeps; Fluid venting; Diapirism; Tectonics; Gulf of Cadiz
Materias:Ciencias > Geología > Geodinámica
Código ID:16746
Depositado:17 Oct 2012 11:57
Última Modificación:17 Oct 2012 11:57

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