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Docta Complutense
Article . 2000
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Sedimentación de plataforma interna-externa con desarrollo de montículos en el Viseense del sector central de la Sierra de la Estrella (Carbonífero, Córdoba)

Authors: Rodríguez Martínez, Marta; Moreno González, Iván; Rodríguez García, Sergio; Mas Mayoral, José Ramón;

Sedimentación de plataforma interna-externa con desarrollo de montículos en el Viseense del sector central de la Sierra de la Estrella (Carbonífero, Córdoba)

Abstract

[ES] En la Sierra de la Estrella (Área del Guadiato, Córdoba) se localiza una sucesión del Viseense superior, principalmente carbonatada, con desarrollo de montículos tipo mud-mound. En esta zona predominan calizas bioclásticas, brechoideas y bioconstruidas, aunque también se localizan niveles de areniscas y conglomerados. Se han identificado un total de 7 litofacies que agrupan a su vez a 9 microfacies tipo: 1.–Mudstonewackestone con cavidades estromatactoideas y fábricas fenestrales, 2.–Wackestonepackstone con algas y bioclastos, 3.1.–Packstone de pseudopeloides, 3.2.–Packstone con algas, pseudopeloides y litoclastos, 4.1.–Packstone de briozoos y crinoideos, 4.2.–Packstone con algas y espículas, 5.–Packstone-rudstone de litoclastos, 6.–Grainstone de cortoides y litoclastos, 7.–Arenitas híbridas. El ambiente de sedimentación se interpreta como una zona de transición entre rampa interna y externa carbonática con influencia de terrígenos y desarrollo de montículos microbianos.

[EN] Late Viséan calcareous rocks containing buildups occur in the Sierra de la Estrella, Guadiato Valley. Bioclastic, breccioid and biohermal limestones as well as sandstones and conglomerates occur. Lithofacies analysis allow to identify 7 types, with 9 characteristic microfacies: 1.–Micropeloidal mudstone-wackestone with stromatactoid cavities and fenestral fabrics, 2.–Algal-bioclastic wackestone-packstone, 3.1.–Pseudopeloidal packstone, 3.2.–Packstone with algae, pseudopeloids and lithoclast, 4.1.–Bryozoal-crinoidal packstone, 4.2.–Packstone with algae and sponge spiculae, 5.–Packstone-rudstone with lithoclasts, 6.–Cortoid-lithoclasts grainstone, 7.–Hybrid sandstones. Sediments are attributed to a inner to outer carbonate ramp with sporadic terrigenous influence. Some microbial mounds developed in such environment.

Este trabajo se enmarca en el proyecto PB 96-0842 de la DGICYT.

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Spain
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Keywords

Análisis Microfacial, Sedimentología, Sierra Morena, 551.735(460.351), Paleontology, 2416 Paleontología, Sedimentology, Microfacies Analysis., Montículos, 56(460.351), Paleontología, Mud-mound, Córdoba, Mounds, 551.3.051(460.351), Análisis microfacial

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This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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