A evolução paleoambiental do estuario do Guadiana (Sul da Península Ibérica): um estudo com base em diatomáceas

• A. Gomes ^[1] ; T. Boski ^[1] ; D. Moura ^[1] ; K. Szkornik ^[2] ; S. Connor ^[3]
  1. [1] Universidade do Algarve

     Universidade do Algarve

     Faro (Sé), Portugal

     
  2. [2] Keele University

     Keele University

     Newcastle-under-Lyme District, Reino Unido

     
  3. [3] Monash University

     Monash University

     Australia

     

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• Localización: El Cuaternario Ibérico. Investigación en el s. XXI: VIII Reunión de Cuaternario Ibérico (Sevilla - La Rinconada 2013) / coord. por Rafael Baena Escudero, José Juan Fernández Caro, Inmaculada Guerrero Amador, 2013, ISBN 978-84-695-8601-3, págs. 108-112
• Idioma: portugués
• Títulos paralelos:
  • Paleoenvironmental evolution of the Guadiana estuary (Southern Iberian Peninsula): a diatom-based study
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• Resumen

  • 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.