Mineralogy and geochemistry of a clogged mining reservoir affected by historical acid mine drainage in an abandoned mining area

摘要

The present study is focused on a water reservoir that is under the influence of AMD in the historic mining area of Riotinto (SW Spain). Transport of particulate matter and chemical precipitation within the reservoir has caused its clogging. Hydrochemical, geochemical and mineralogical characterization allowed to assess the degree of contamination by trace elements.