ABSTRACT
This study was carried out around Paracatu in the Brazilian state of Minas Gerais. The Paracatu gold deposit is a metamorphic system of finely disseminated gold hosted in the highly deformed Meso/Neoproterozoic carbonaceous phyllite of the Canastra Group (see Soares Monteiro et al. 2006, for a review). Gold-bearing sulphide mineralization is mainly arsenopyrite [FeAsS], with subordinate pyrite [FeS2], pyrrhotite [Fe1-xS], chalcopyrite [CuFeS2], sphalerite [(Zn,Fe)S], and galena [PbS].
