The Cerovo-cementacija 2 porphyry Cu deposit, Eastern Serbia - Ore mineralogy and paragenetic analysis

Abstract

The Cerovo-Cementacija 2 porphyry Cu deposit, hosted by hydrothermally altered hornblende andesite, located into the Bor Metallogenic Zone, eastern Serbia, has been investigated. In this porphyry Cu deposit, the following mineral parageneses have been established: i) pyrite-chalcopyrite with Mo; ii) quartz-pyrite with Au; iii) digenite-chalcocite-covellite with Au; iv) chalcedony by sulfatization and sulphation; v) malachite-azurite-limonite. Chalcopyrite is the major Cu mineral and it is the most abundant compared to other established Cu-sulfide minerals. By the ascending and descending hydrothermal processes along the Zone-1 (cementation zone), chalcopyrite was commonly transformed into secondary Cu sulfide minerals (digenite, chalcocite, anilite, covellite, etc.), while those appearances is less represented to the Zone-2 (transitional zone).