2026-06-27T23:19:26Zhttps://docta.ucm.es/rest/oai/request
oai:docta.ucm.es:20.500.14352/435162023-08-05T21:42:38Zcom_20.500.14352_14col_20.500.14352_15
Docta Complutense author Gómez Ortiz, David author Martín Velázquez, Silvia author Martín Crespo, T. author Ignacio San José, Cristina de author Lillo, J. 2023-06-20T01:20:21Z 2023-06-20T01:20:21Z 2010 1569-4445 10.3997/1873-0604.2009052 https://hdl.handle.net/20.500.14352/43516 http://dx.doi.org/10.3997/1873-0604.2009052 Mining activity in the Iberian Pyrite Belt, on the south-west of the Iberian Peninsula, has generated a great amount of mine tailing ponds, which once the extractive activity is finished, are abandoned and become a serious environmental problem. Here we present the results of applying the electrical resistivity tomography (ERT) technique to characterize the abandoned mine ponds in two sites: Monte Romero and Mina Concepción. ERT has allowed us to determine both the general geometry of the pond's base and the maximum thickness of the mine tailings. In all cases, the resistivity contrast between the infilling and the bedrock is high enough to clearly define the bottom pond boundary. The low-resistivity values (lower than 5 ωm) obtained for the infilling are explained by the high concentration of pyrite in the tailings and the occurrence of acid waters. Whereas the Monte Romero mine pond is almost completely saturated with water, in Mina Concepción it has been possible to identify the presence of inner acid water flows, the outlet of which through the damaged dyke originates a spilling of acid waters to the Odiel River. No low-resistivity water flows through the base of the ponds into the bedrock have been observed, indicating a good isolation of the base of the studied mine ponds. eng Application of electrical resistivity tomography to the environmental characterization of abandoned massive sulphide mine ponds (Iberian Pyrite Belt, SW Spain) journal article URL https://docta.ucm.es/bitstreams/2fd73081-c973-4f33-b0ee-b85f86d8ed4b/download File MD5 75505511b6a1bda211bd15cbff693ae8 4801809 application/pdf Near Surface Geophysics - 2009 - G mez‐Ortiz - Application of electrical resistivity tomography to the environmental.pdf URL https://docta.ucm.es/bitstreams/2ce1b22e-dcc3-4625-8c0f-ba48b082f37d/download File MD5 b61aeb0b4719eedb7d074c7a85a9a9e7 45990 text/plain Near Surface Geophysics - 2009 - G mez‐Ortiz - Application of electrical resistivity tomography to the environmental.pdf.txt