Geomorphological characteristics of Pipoca mud volcano linked to recent geological processes in the Gulf of Cadiz continental margin
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AuthorsPalomino, D. (Desirée); Vázquez, J.T. (Juan Tomás); Fernández-Salas, L.M. (Luis Miguel); López-González, N. (Nieves); Rueda, J.L. (José Luis); Díaz-del-Río-Español, V. (Víctor)
Editor/sIV Congress of Marine Sciences
Mud volcanoes are conical edifices formed by the vertical migration of muddy sediments and fluids (hydrocarbons and brines) that are extruded by successive emissions. Mud breccia is the distinctive material of these volcanoes which is composed by clasts of varied lithologies embedded in a clayey matrix. This material is pushed out by the central diatrema of the cone and gives rise to mud flows that slide down the flanks of the edifice. These volcanoes are very common in the middle and upper slope of the Gulf of Cadiz. They are placed over buried diapiric structures and are associated to faults that facilitate the fluid escape (Fern´andez-Puga et al. 2007). The aim of this communication is to study the seafloor morphology and the sub-superficial characteristics of the Pipoca mud volcano, its interaction with the water masses hydrodynamic and the recent geological processes (tectonics, sedimentary, diapirism) that have occurred in the zone. This work has been developed in the ...
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