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Sulfide oxidation at the polymetallic sulfide deposit Freiberg (Germany) and consequences for heavy metal mobilisation


, : Sulfide oxidation at the polymetallic sulfide deposit Freiberg (Germany) and consequences for heavy metal mobilisation. Geochemical processes in soil and groundwater: measurement, modelling, upscaling GeoProc2002 conference, Bremen, Germany, 4-7 March 2002: 356-379

Oxidation of sulfide minerals in the underground mine workings of the polymetallic sulfide deposit Freiberg (Germany) leads to the formation of several dissolved and precipitated oxidation products. Typical precipitated secondary phases include jarosite and scorodite Together with clay minerals (mainly illite: KAl2(AlSi3O10)(OH)2) they form clayey deposits containing acid pore waters with high concentrations of sulfate and heavy metals.

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