Cambios paleoambientales en la desembocadura del río Guadalquivir durante el Holoceno reciente

  1. Francisco Ruiz Muñoz
  2. Antonio Rodríguez Ramírez
  3. Luis Miguel Cáceres Puro
  4. Joaquín Rodríguez Vidal
  5. Celia Yáñez Camacho
  6. L. Clemente
  7. María Luz González-Regalado Montero
  8. Manuel Abad de los Santos
  9. J. R. de Andrés Alonso
Journal:
Geogaceta

ISSN: 0213-683X

Year of publication: 2001

Issue: 31

Pages: 167-170

Type: Article

More publications in: Geogaceta

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Abstract

Late Holocene palaeoenvironmental changes (~ 2000 BP) in the Donana National Park (Guadalquivir estuary, SW Spain) were studied using geomorphological techniques, lithostratigraphic analysis and ostracode faunas. Two cores were drilled in the Las Nuevas estuarine ridge, showing an environmental evolution with five phases: 1) brackish lagoon (the Roman Lacus Ligustinus); 2) energetic event (storm?, tsunami?); 3) brackish lagoon with reduction of the ostracode density; 4) transitional, with the first apparition of fresh-water species; and 5) temporary pond, located between cheniers and levees