Mineral associations in the geochemical halos of Milin Kamak ore deposit, Bulgaria

The focus of this study is the mineralogical interpretation of the determined geochemical associations in the Milin Kamak deposit. Based on the results of the factor analysis, an attempt was made for interpretation of the factor axes by mineralogical studies and EPMA analysis. Three factor associations are related to the hydrothermal ore-forming processes. The main factor axes related to Au is quartz-polymetallic stage and is represented by pyrite, marcasite, arsenopyrite, pyrrhotite, sphalerite, galena and chalcopyrite.