Abstract
The analysis of the geological units and the ostracod assemblages of a long core collected in the southern Donana National Park (SW Spain) permits to deduce an evolution from shallow marine palaeoenvironments (Lower Pliocene) to a brackish lagoon (Upper Pleistocene-Holocene) and the deposit of aeolian sediments (<1900 yr BP), with an intermediate alluvial stage during the Pleistocene. In the Late Holocene, a tsunamigenic event was detected, with the erosion of aeolian sediments and a subsequent deposit on subtidal environments.
Highlights
The analysis of the geological units and the ostracod assemblages of a long core collected in the southern Doñana National Park (SW Spain) permits to deduce an evolution from shallow marine palaeoenvironments (Lower Pliocene) to a brackish lagoon (Upper Pleistocene-Holocene) and the deposit of aeolian sediments (
Estas zonas internas están protegidas por la flecha de Doñana, que se eleva por encima de los 15 m en algunos sectores
Se detecta el depósito puntual de materiales eólicos, (-17 a – 14 m), formados por arenas amarillentas de grano fino a medio sobre los sedimentos limosos submareales hacia los 2.200 años BP, Estas arenas presentan una ausencia casi total de valvas y caparazones de ostrácodos
Summary
The analysis of the geological units and the ostracod assemblages of a long core collected in the southern Doñana National Park (SW Spain) permits to deduce an evolution from shallow marine palaeoenvironments (Lower Pliocene) to a brackish lagoon (Upper Pleistocene-Holocene) and the deposit of aeolian sediments (
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