Resumen de A evolução paleoambiental do estuario do Guadiana (Sul da Península Ibérica): um estudo com base em diatomáceas
A. Gomes, T. Boski, Delminda Moura, Katie Szkornik, Simon Connor
In order to enhance our understanding of the evolution of the Guadiana Estuary since the Last Glacial Maximum, a diatom-based study was performed on a core collected in a salt-marsh zone of the Guadiana River. The core spans more than 13241 cal. Years B.P. Between ca. 62-m and 25.5-m depth the diatom assemblages are indicative of a prevailing salt-marsh environment. The strongest marine influence was inferred to the period between ca. 25.5 and 13.5-m depth, indicating a phase of rapid sea-level rise. From this period onwards, diatom assemblages seem to indicate an evolution to a more restrict environment probably similar to the actual configuration of the study area.
