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Article

3D Spatial Distribution of Arsenic in an Abandoned Mining Area: A Combined Geophysical and Geochemical Approach

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Facultad de Ciencias Geológicas, “Geochemistry: Exploration and Environment” UCM Research Group. Departamento de Mineralogía y Petrología, Universidad Complutense de Madrid, 28040 Madrid, Spain
2
Facultad de Ciencias Geológicas, “Tectonofísica Aplicada” UCM Research Group. Departamento de Geodinámica, Estratigrafía y Paleontología, Universidad Complutense de Madrid, 28040 Madrid, Spain
*
Author to whom correspondence should be addressed.
Minerals 2020, 10(12), 1130; https://doi.org/10.3390/min10121130
Received: 3 November 2020 / Revised: 1 December 2020 / Accepted: 8 December 2020 / Published: 15 December 2020
(This article belongs to the Special Issue Environmental Geochemistry of Mineral Deposits)
Abandoned mine wastes, containing high sulfide contents, are of particular concern because of the formation of acid mine drainage (AMD), becoming an active and harmful point source of potentially toxic elements (PTEs) to the environment. A detailed evaluation of the chemical and mineralogical composition of mining wastes is necessary to determine effective remediation actions. Due to the high amount of generated wastes as a result of mining and processing activities, the cost and time consumed for this characterization are limiting. Hence, efficient tools could be applied to predict the composition of these wastes and their spatial distribution. This study aims to determine the physico-chemical characterization of wastes from mining activities using geochemical and geophysical techniques. The obtained results, both geochemical and geophysical, allow us to locate areas with a high potential risk of contamination by As in an economic and simple way, and enable us to design detailed geochemical sampling campaigns. In addition, the fact that there are conductive fractures in depth suggests the possible circulation of contaminants through them as well as the preferential lines of circulation. View Full-Text
Keywords: arsenic; soil contamination; geochemical characterization; electromagnetic conductivity; electrical resistivity tomography; risk assessment arsenic; soil contamination; geochemical characterization; electromagnetic conductivity; electrical resistivity tomography; risk assessment
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MDPI and ACS Style

Ruiz-Roso, J.; García-Lorenzo, M.L.; Castiñeiras, P.; Muñoz-Martín, A.; Crespo-Feo, E. 3D Spatial Distribution of Arsenic in an Abandoned Mining Area: A Combined Geophysical and Geochemical Approach. Minerals 2020, 10, 1130. https://doi.org/10.3390/min10121130

AMA Style

Ruiz-Roso J, García-Lorenzo ML, Castiñeiras P, Muñoz-Martín A, Crespo-Feo E. 3D Spatial Distribution of Arsenic in an Abandoned Mining Area: A Combined Geophysical and Geochemical Approach. Minerals. 2020; 10(12):1130. https://doi.org/10.3390/min10121130

Chicago/Turabian Style

Ruiz-Roso, Jesús, Mari Luz García-Lorenzo, Pedro Castiñeiras, Alfonso Muñoz-Martín, and Elena Crespo-Feo. 2020. "3D Spatial Distribution of Arsenic in an Abandoned Mining Area: A Combined Geophysical and Geochemical Approach" Minerals 10, no. 12: 1130. https://doi.org/10.3390/min10121130

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