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Las «sand waves» calcareníticas del Río Alías (Mioplioceno de la Cuenca de Níjar, Almería)

Dabrio, Cristino J. (1987) Las «sand waves» calcareníticas del Río Alías (Mioplioceno de la Cuenca de Níjar, Almería). Acta geologica hispanica , 21-22 . pp. 159-166. ISSN 0567-7505

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Abstract

Las calcarenitas marinas someras del Plioceno del Río Alías se depositaron en un umbral que separaba dos cuencas marinas. Allí migraban distintas formas de fondo movidas por comentes de deriva, de dirección E-W y sentidos cambiantes, generadas por las tormentas
y vientos dominantes en la región.
[ABSTRACT]
The shallow-marine Pliocene succesion of Rio Alías consists
of deposits laid down by prograding shallow shelf-talus and tan delta systems. The lower calcarenite member displays largescale sets of cross-bedding that are sudied in detail. Lack of definite tide-generated features, together with repeated intense burrowing of some of the foreset laminae, lead to invoke wind-driven currents, induced by storms blowing from E and W, torced through a narrow, shallow pass between two emergent islands, where the flow accelerated.

Item Type:Article
Uncontrolled Keywords:Calcarenitas marinas someras, Sand Waves, Bajos fondos, Mio-Plioceno, Almería, Shallow marine calcarenites, Sand waves, Carbonate shoals, Mio-Pliocene, Almería
Subjects:Sciences > Geology > Stratigraphic geology
ID Code:10316
Deposited On:15 Mar 2010 09:31
Last Modified:15 Mar 2010 09:31

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