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Atlantic Extreme Wave Events During the Last Four Millennia in the Guadalquivir Estuary, SW Spain

Published online by Cambridge University Press:  20 January 2017

Antonio Rodríguez-Ramírez*
Affiliation:
Departamento de Geodinámica y Paleontología, Universidad de Huelva, Campus de Excelencia Internacional del Mar, CEIMAR, Avenida 3 de Marzo, s/n 21007 Huelva, Spain
José Noel Pérez-Asensio
Affiliation:
Earth and Environmental Science Section, University of Geneva, Rue des Maraîchers 13, 1205 Geneva, Switzerland
Ana Santos
Affiliation:
Departamento de Geodinámica y Paleontología, Universidad de Huelva, Campus de Excelencia Internacional del Mar, CEIMAR, Avenida 3 de Marzo, s/n 21007 Huelva, Spain
Gonzalo Jiménez-Moreno
Affiliation:
Departamento de Estratigrafía y Paleontología, Facultad de Ciencias, Universidad de Granada, Avda. Fuentenueva s/n, 18002 Granada, Spain
Juan J.R. Villarías-Robles
Affiliation:
Instituto de Lengua, Literatura y Antropología, Centro de Ciencias Humanas y Sociales (CCHS), Consejo Superior de Investigaciones Científicas (CSIC), C/ Albasanz, 26-28, 28037 Madrid, Spain
Eduardo Mayoral
Affiliation:
Departamento de Geodinámica y Paleontología, Universidad de Huelva, Campus de Excelencia Internacional del Mar, CEIMAR, Avenida 3 de Marzo, s/n 21007 Huelva, Spain
Sebastián Celestino-Pérez
Affiliation:
Instituto de Arqueología de Mérida, Consejo Superior de Investigaciones Científicas (CSIC), Plaza de España 15, 06800 Mérida, Spain
Enrique Cerrillo-Cuenca
Affiliation:
Instituto de Arqueología de Mérida, Consejo Superior de Investigaciones Científicas (CSIC), Plaza de España 15, 06800 Mérida, Spain
José Antonio López-Sáez
Affiliation:
Instituto de Historia, Centro de Ciencias Humanas y Sociales (CCHS), Consejo Superior de Investigaciones Científicas (CSIC), Calle Albasanz, 26-28, 28037 Madrid, Spain
Ángel León
Affiliation:
Fundación del Hogar del Empleado (FUHEM), Colegio Lourdes, C/ San Roberto, 8, 28011 Madrid, Spain
Carmen Contreras
Affiliation:
Departamento de Geodinámica y Paleontología, Universidad de Huelva, Campus de Excelencia Internacional del Mar, CEIMAR, Avenida 3 de Marzo, s/n 21007 Huelva, Spain
*
*Corresponding author. Fax: +34 958219440. E-mail address: arodri@uhu.es (A. Rodríguez-Ramírez).

Abstract

A multidisciplinary study from a number of drilled cores in the Guadalquivir estuary has made possible to identify as many as three extreme wave events and their facies in the 4th millennium BP (A: ~ 4000 cal yr BP, B: ~ 3550 cal yr BP, and C: ~ 3150 cal yr BP). These events, which caused strong erosion in the Guadalquivir sandy barrier and in the neighboring aeolian systems of El Abalario, brought about significant paleogeographical changes that may have affected human settlements established in the area during the Neolithic and Copper Age periods and during the Middle Bronze Age. The three events can be spatially correlated and their facies differentiated from more proximal to more distal from the coastline. The most proximal facies is characterized by a massive accumulation of shells, a sandy or sandy–muddy matrix, an erosive base, a highly diverse mixture of species (marine and estuarine), and lithoclasts. The most distal facies presents a muddy–sandy matrix, dominance of estuarine fauna, shell accumulation, presence of terrestrial species, mudpebbles, pebbles in a clayey matrix, and bioturbation. The evidence presented will further advance scientific knowledge about the impact of extreme wave events on coastal areas in SW Iberia and NW Africa.

Type
Research Article
Copyright
University of Washington

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