Caracterización de los sedimentos del embalse de Castilseras en el entorno minero de Almadén

  1. N. Fernández-Naranjo 1
  2. M.L. García-Lorenzo 2
  3. P. Higueras 3
  4. J.M. Esbrí-Victor 3
  5. E. García-Ordiales 4
  6. S. Covelli 5
  1. 1 Instituto Geológico y Minero de Españ
  2. 2 Universidad Complutense de Madrid
    info

    Universidad Complutense de Madrid

    Madrid, España

    ROR 02p0gd045

  3. 3 Universidad de Castilla-La Mancha
    info

    Universidad de Castilla-La Mancha

    Ciudad Real, España

    ROR https://ror.org/05r78ng12

  4. 4 Universidad de Oviedo
    info

    Universidad de Oviedo

    Oviedo, España

    ROR https://ror.org/006gksa02

  5. 5 University of Trieste
    info

    University of Trieste

    Trieste, Italia

    ROR https://ror.org/02n742c10

Erakutsi afiliazioak +
Aldizkaria:
Geotemas (Madrid)

ISSN: 1576-5172

Argitalpen urtea: 2016

Zenbakien izenburua: IX CONGRESO GEOLÓGICO DE ESPAÑA

Zenbakia: 16

Orrialdeak: 137-140

Mota: Artikulua

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Beste argitalpen batzuk: Geotemas (Madrid)

Laburpena

Sediments from the Castilseras reservoir, located downstream of the Valdeazogues River in the Almadén mercury district were collected to assess the total mercury content associated with river sediment input from several decommissioned mines. A geochemical characterization, including the determination of total mercury content, were investigated using different physical and chemical techniques. The results obtained suggested that sediments are slightly acidic and characterized by high mercury, related to mining activities. In addition, sediments showed a silty texture and the electrical conductivity results showed moderate salinity, related to acid mine drainage (AMD) processes. The multivariate statistical analysis suggested that mercury content is positively correlated with the silt fraction in collected samples. In regard to the obtained results, we can conclude that Castilseras is one of the reservoirs with the highest mercury concentration, as a result of mining activities carried out in the zone. In this reservoir, the mercury content is diluted downstream.

Datuen iturria: Dialnet