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Open Access item Las "sand waves" calcareníticas del Río Alías (Mioplioceno de la Cuenca de Níjar, Almería)

Authors:Dabrio, Cristino J.
Keywords:Calcarenitas marinas someras, Sand waves, Bajos fondos, Mio-Plioceno, Almeria, Shallow marine calcarenites, Sand waves, Carbonate shoals, Mio-Pliocene, Almeria
Issue Date:1987
Publisher:CSIC - Instituto de Ciencias de la Tierra Jaume Almera (ICTJA)
Citation:Acta Geológica Hispánica, t. 21-22 (1986-1987), pags. 159-166
Abstract:[ES] Las calcarenitas marinas someras del Plioceno del Río Alías se depositaron en un umbral que separaba dos cuencas marinas. Alli migraban distintas formas de fondo movidas por corrientes de deriva, de dirección E-W y sentidos cambiantes, generadas por las tormentas y vientos dominantes en la región.
[EN] The shallow-marine Pliocene succession of Rio Alias (fig. 1) consists of deposits laid down by prograding shallow shelf-talus and fan delta systems (fig. 2). The lower calcarenite member displays largescale sets of cross-bedding (fig. 3, lam. 1 fots. 1, 3) that are sudied in detail (lam. 1 fots. 2, 4, 5). 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, forced through a narrow, shallow pass between two emergent islands, where the flow accelerated (fig. 4).
URI:http://hdl.handle.net/10261/6933
ISSN:1695-6133
Appears in Collections:(IGE) Artículos

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