Fossil groundwater linked to coastal aquifers

Authors

  • Fernando Sola Recursos Hídricos y Geología Ambiental, Universidad de Almería
  • Luis Molina Recursos Hídricos y Geología Ambiental, Universidad de Almería
  • Ángela Vallejos Recursos Hídricos y Geología Ambiental, Universidad de Almería

DOI:

https://doi.org/10.55407/geogaceta99831

Keywords:

radioisotopes, Cabo de Gata, Andarax river delta, coastal acuifers

Abstract

Two aquifers have been studied, the coastal plain of Cabo de Gata and the Andarax river delta, on the Almeria coast. The apparent age of its waters has been determined, which has made it possible to differentiate four water bodies in each of these aquifers: freshwater, interface, seawater and paleoseawater. The fresh and marine water bodies have been dated as recent, registering the paleoseawater values around 10 ka. The interface shows an intermediate age. In the plain of Cabo de Gata, the paleowater has a salinity higher than seawater, while in the Andarax delta the salinity is identical to current seawater. The contrast of densities between the different water bodies conditions the geometry and the level of advance of these bodies in the aquifer. Paleogeographic evolution has played an important role in the current configuration of these aquifers.

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Erupción de La Palma de 2021 (Cumbre Vieja, 19 septiembre a 13 de diciembre de 2021).

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Published

2022-06-06

How to Cite

Sola, F., Molina, L., & Vallejos, Ángela. (2022). Fossil groundwater linked to coastal aquifers. GEOGACETA, 71, 43–46. https://doi.org/10.55407/geogaceta99831

Issue

Vol. 71 (2022): Enero-Junio

Section

Artículos

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