Mining contamination buffering capacity of the Holocene sediments in the Guadiana estuary (SW Spain)

Authors

  • Angel Moreno-Moreno Dpto. Cristalografía, Mineralogía y Química Agrícola, Universidad de Sevilla
  • Joaquín Delgado Rodríguez Dpto. Cristalografía, Mineralogía y Química Agrícola, Universidad de Sevilla
  • Cinta Barba-Brioso Dpto. Cristalografía, Mineralogía y Química Agrícola, Universidad de Sevilla
  • José Miguel Nieto-Liñán Dpto. Ciencias de la Tierra, Universidad de Huelva

DOI:

https://doi.org/10.55407/geogaceta99841

Keywords:

AMD, Mineralogy, Geochemistry, estuary, sequencial extractions

Abstract

The estuary of the Guadiana River is located in the South of the Iberian Peninsula, specifically on the border between Spain and Portugal. The river crosses in its last section the Iberian Pyrite Belt, where there are important mining deposits that have been exploited during the last 5000 years. Given the danger that Acid Drainage, produced by this type of activity, pose to the environment, a study has been carried out through the extraction of cores, to which different methods have been applied (study of their chemistry, dating by C14, and mineralogical study) through which results have been obtained that
reveal a system capable of dampening in a quite forceful way the contributions that have come from the upper part of the basin during the last 13000 years, thus protecting an ecosystem with a high ecological value.

References

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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

Moreno-Moreno, A., Delgado Rodríguez, J., Barba-Brioso, C., & Nieto-Liñán, J. M. (2022). Mining contamination buffering capacity of the Holocene sediments in the Guadiana estuary (SW Spain). GEOGACETA, 71, 71–74. https://doi.org/10.55407/geogaceta99841

Issue

Vol. 71 (2022): Enero-Junio

Section

Artículos

License

Until the year 2023 the author assigned the copyright to the Sociedad Geológica de España, but from 2024 the author retains the copyright and grants the Sociedad Geológica de España the right of first publication and non-exclusive distribution of each article in all current or future media, while transferring, also non-exclusively, the commercial rights for the distribution of the printed version of Geogaceta. On the other hand, the articles, from the year 2023, are available simultaneously with their publication, under the Creative Commons CC BY-NC-SA 4.0 license, which allows copying, transforming the work, but if any transformation is distributed, the new work must be distributed under the same license, and never for commercial purposes, while acknowledging the authorship and original publication in GEOGACETA, so that the only role of copyright is to give authors control over the integrity of their works and the right to be properly acknowledged and cited.