La secuencia aluvial del bajo Guadalquivir (sw España) durante el Pleistoceno Superior-Holoceno

• F. Borja ^[1] ; C. Borja ^[2] ; F. Díaz del Olmo ^[2] ; J.M. Recio ^[3] ; J.A. Caro ^[3] ; J.A. Valiente ; P. Fraile ^[2]
  1. [1] Universidad de Huelva

     Universidad de Huelva

     Huelva, España

     
  2. [2] Universidad de Sevilla

     Universidad de Sevilla

     Sevilla, España

     
  3. [3] Universidad de Córdoba

     Universidad de Córdoba

     Cordoba, España

     

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• Localización: XV Reunión Nacional de Cuaternario Bizkaia Aretoa: Bilbao, 1-5 julio 2019. Libro de resúmenes, 2019, ISBN 978-84-17713-16-4, págs. 144-147
• Idioma: español
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• Resumen

  • Pleistocene to Holocene evolution of the lower Guadalquivir floodplain (SW Spain) is analyzed from a geoarchaeological approach. We especially study sedimentological data from the valley of the ancient Tagarete River, a small left tributary of the Guadalquivir which is now nolonger there. Our study suggests a transition from the Pleistocene to the Holocene with a triple sedimentary system. The sequence begins with a thick detritic series of upper Pleistocene alluvial gravels, including well-rounded stone tools of the Middle Paleolithic (1). The transit of this alluvial system to the Holocene facies occurs through a strong stratigraphic unconformity that gives way, first, to an organic sediment formation environment (lagoon) correlative with the end of the sea level rise in the mid-Holocene (2), and, subsequently (late Holocene), to a predominance of flooding deposits and emerging facies at the top of the sequenc