Multidisciplinary study of mud volcanoes and diapirs and their relationship to seepages and bottom currents in the Gulf of Cádiz continental slope (northeastern sector)
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Autor/esPalomino, D. (Desirée); López-González, N. (Nieves); Vázquez, J.T. (Juan Tomás); Fernández-Salas, L.M. (Luis Miguel); Rueda, J.L. (José Luis); Sánchez-Leal, R.F. (Ricardo Félix); Díaz-del-Río-Español, V. (Víctor)
Versión del editorhttp://www.sciencedirect.com/science/article/pii/S0025322715300426
Palabras claveMud volcanoes
Gulf of Cádiz
The seabed morphology, type of sediments, and dominant benthic species on eleven mud volcanoes and diapirs located on the northern sector of the Gulf of Cádiz continental slope have been studied. The morphological characteristics were grouped as: (i) fluid-escape-related features, (ii) bottom current features, (iii) mass movement features, (iv) tectonic features and (v) biogenic-related features. The dominant benthic species associated with fluid escape, hard substrates or soft bottoms, have also been mapped. A bottom current velocity analysis allowed, the morphological features to be correlated with the benthic habitats and the different sedimentary and oceanographic characteristics. The major factors controlling these features and the benthic habitats are mud flows and fluid-escape-related processes, as well as the interaction of deep water masses with the seafloor topography. Mud volcano eruptions give rise to mud flows and/or aqueous fluid seepage. These processes sustain chemosynt ...
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