Cambios paleoambientales en la desembocadura del río Guadalquivir durante el Holoceno reciente
- Ruiz Muñoz, Francisco
- Rodríguez Ramírez, Antonio
- Cáceres Puro, Luis Miguel
- Rodríguez Vidal, Joaquín
- Yáñez Camacho, Celia
- Clemente, L.
- González-Regalado Montero, María Luz
- Abad de los Santos, Manuel
- Andrés Alonso, J. R. de
ISSN: 0213-683X
Year of publication: 2001
Issue: 31
Pages: 167-170
Type: Article
More publications in: Geogaceta
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