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Mineralogical control on the fixing oi metals in sulphide oxidation processes

dc.contributor.authorCapitán, M. A.
dc.contributor.authorNieto Liñán, José Miguel 
dc.contributor.authorSáez Ramos, Reinaldo 
dc.contributor.authorRuiz de Almodóvar Sel, Gabriel
dc.description.abstractGossans are the products of intense oxidation of massive sulphide deposits exposed in the surface. In the Filón Sur deposit (Tharsis, Huelva), a detailed petrological and mineralogical study of the gossan has allowed us to establish the distribution and abundance of the main mineral phases in the gossan profile. Among these mineral phases, beudantite is present in the whole profile, although it tends to concentrate tower the lower part, where this mineral can reach up to 40 %. Chemical analyses of beudantite have shown the presence of important amounts of As and Pb in their structure (up to 13 % As203 and 41% PbO). Taking into account that the content of As and Pb in the original sulphides is very low, beudantite acts as a sink for these two elements during the gossan formation process. This natural mechanism of As and Pb fixation can have important consequences for remediation of areas affected by acid mine drainageen_US
dc.publisherSociedad Geológica de Españaen_US
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.subject.otherFilón Suren_US
dc.subject.otherFaja Pirítica Ibéricaen_US
dc.titleControl mineralógico sobre la fijación de metales en procesos de oxidación de sulfurosen_US
dc.titleMineralogical control on the fixing oi metals in sulphide oxidation processeseng

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Atribución-NoComercial-SinDerivadas 3.0 España
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