Delgado Martín, JordiJuncosa, RicardoVázquez-González, AnaFalcón-Suárez, Ismael HimarCanal, JacoboHernández, H.Padilla, FranciscoVellando, PabloDelgado, J.L.2024-12-192024-12-192008Delgado, J., Juncosa, R., Vazquez, A., Falcón, I., Canal, J., Hernández, H., … Delgado, J. L. (2008). Hydrochemical characteristics of the natural waters associated with the flooding of the Meirama open pit (A Coruña, NW Spain). Mineralogical Magazine, 72(1), 399–403. https://doi.org/10.1180/minmag.2008.072.1.399http://hdl.handle.net/2183/40563Versión aceptada de: https://doi.org/10.1180/minmag.2008.072.1.399[Abstract:] In December, 2007, after 30 years of operations, the mine of Meirama ceased extraction of brown lignite. Since then operations have begun which will lead to the formation of a big mining lake (~2 km2 surface and up to 180 m deep) after controlled flooding of the open pit. In the process of flooding, both surface and ground waters are involved, each with their own chemical signature. According to the information available, the diversion of surface waters towards the pit hole should lead to the formation of a water body of acceptable quality. However, an unassisted flooding process could eventually form an acidic lake.engThis is an Accepted Manuscript version, accepted for publication in Mineralogical Magazine. It is deposited under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives License (http://creativecommons.org/licenses/by-nc-nd/4.0/).Atribución-NoComercial-SinDerivadashttp://creativecommons.org/licenses/by-nc-nd/3.0/es/Abandoned minesAcid mine drainageAquifersCoal minesDrainageGeochemistryGround waterHydrochemistryLakesLigniteMinesMiningOpen-pit miningPollutionQuarriesSedimentary rocksSurface miningWater pollutionMeiramajournal articleopen access10.1180/minmag.2008.072.1.399