Abstract
Recent mineralogical, chemical, physical, and crystallographic investigations of the Boranja orefield showed very complex mineral associations and assemblages where sulfosalts have significant role. The sulfosalts of the Boranja orefield can be divided in four main groups: (i) Pb-Sb(As)-S system with ?Fe and ?Cu; (ii) Cu(Ag)-Fe(Zn)-Sb(As)-S system; (iii) Ag(Pb)-Bi(Sb)-S; (iv) and Pb-Bi-S(Te) system. Spatially, these sulfosalts are widely spread, however, they are the most abundant in the following polymetallic deposits and ore zones: Cu(Bi)-FeS Kram-Mlakva; Pb(Ag)-Zn-FeS2 Veliki Majdan (Kolarica-Centralni revir-Kojici); Sb-Zn-Pb-As Rujevac; and Pb-Zn-FeS2-BaSO4 Bobija. The multi stage formation of minerals, from skarnhydrothermal to complex hydrothermal with various stages and sub-stages has been determined. All hydrothermal stages and sub-stages of various polymetallic deposits and ore zones within the Boranja orefield are followed by a variety of sulfosalts.
Highlights
Sulfosalts are complex sulfide minerals with the general formula: AmBnSp; where A represents a metal such as Cu, Pb, Ag, Fe and rarely Hg, Zn, V; B usually represents semi-metal such as As, Sb, Bi and rarely Ge, or metals like Sn and rarely In; and S is S or rarely Se or/and Te (ANTHONY et al 1990; MOËLO et al 2008)
This study shows a synthesis of previous research of sulfosalts with revisited and new data
The areal extent of the Serbo-Macedonian Metallogenic Province (SMMP) covers around 30,000 km2 in the territory of Serbia and extends over the three major geotectonic units: the Vardar ophiolite zone, the Serbo-Macedonian massif, and the inner Dinarides. It covers a small part of eastern Bosnia and Herzegovina (B&H), larger parts of Serbia and the Former Yugoslav Republic of Macedonia (FYRM), and extends towards Bulgaria and Greece
Summary
Sulfosalts are complex sulfide minerals with the general formula: AmBnSp; where A represents a metal such as Cu, Pb, Ag, Fe and rarely Hg, Zn, V; B usually represents semi-metal such as As, Sb, Bi and rarely Ge, or metals like Sn and rarely In; and S is S or rarely Se or/and Te (ANTHONY et al 1990; MOËLO et al 2008). The complexity of many of the structures results from them having crystallized at low temperatures and the consequent high degree of ordering of the metal atoms Syntheses of such compositions at higher temperature usually result in structures simpler than the complicated low-temperature forms. There are about 200 known sulfosalts (MOËLO et al 2008) These minerals were formed under the mutual influence of different sulfantimonide, sulfarsenide, sulfstanate, sulfbismuthinide, etc. Anions (e.g. SbS21–, As4S1518–, AsS33–, Bi2S66–), with metal ions (e.g., Cu1+; 2+, Ag1+, Fe2+, Pb2+) These reactions occur only in mineralized solutions with increased alkalinity and high concentration of H2S. Decrease of temperature and pressure led to decomposition of high-temperature solid solutions when two or more stable sulfosalts phases were formed This is visible in Pb-Ag-bearing sulfbismuthinide when complex exsolutions with lamellae structures were deposited (i.e., phases along the lillianite-gustavite solid solution Pb3Bi2S6-AgPbBi3S6) (COOK 1997). This study shows a synthesis of previous research of sulfosalts with revisited and new data
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
