Sedimentación de plataforma interna-externa con desarrollo de montículos en el Viseense del sector central de la Sierra de la Estrella (Carbonífero, Córdoba)[Internal to external platform sedimentation with development of mud-mounds during Viséan form t

  1. Moreno-González, I.
  2. Mas Mayoral, José Ramón
  3. Rodríguez Martínez, Marta
  4. Rodríguez García, Sergio
Journal:
Coloquios de Paleontología

ISSN: 1132-1660

Year of publication: 2000

Issue: 51

Pages: 9-34

Type: Article

More publications in: Coloquios de Paleontología

Abstract

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.