Caracterización de los sistemas palustres de Las Tablas de Daimiel durante el Cuaternariotextura y composición de sus barros micríticos

  1. A.M. Alonso Zarza 1
  2. Miriam Dorado Valiño 2
  3. A. Valdeolmillos Rodríguez 2
  4. M.B. Ruiz Zapata 2
  1. 1 Universidad Complutense de Madrid
    info

    Universidad Complutense de Madrid

    Madrid, España

    ROR 02p0gd045

  2. 2 Universidad de Alcalá
    info

    Universidad de Alcalá

    Alcalá de Henares, España

    ROR https://ror.org/04pmn0e78

Revista:
Geotemas (Madrid)

ISSN: 1576-5172

Año de publicación: 2004

Título del ejemplar: IV Congreso Geológico de España

Número: 6

Páginas: 13-16

Tipo: Artículo

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Otras publicaciones en: Geotemas (Madrid)

Resumen

The National Park of Las Tablas de Daimiel contains a continuous record o f shallow-lacustrine andfluvial deposits, which was studied in a borehole, 38.5 m in depth. The borehole has three different parts that reflect important sedimentary changes. The lower part (17 m) consists o f cal cite mudswith some dolomite, gypsum moulds, gastropods, calcified root tissues and sponge spicules. Itdeposited in a shallow, mostly permanent lacustrine system o f variable salinity. The middle part(8.6 m) is formed by calcitic muds with traces o f dolomite and include diatoms, sponge spicules,ostracods and calcified filaments. It represents the sedimentation within a freshwater palustrinesystem. The upper part (12.9 m) is made o f m¡critic muds with desiccation cracks, alveolar structures, gastropods, charophytes and intraclasts. It formed in a palustrine regime with clear desiccation events. Radiocarbon dating o f samples situated between 8.1 and 12.6 m indicate an age o fabout 25,000 yr BP.

Fuente de los datos: Dialnet