Seminar Giada Iacono-Marziano

The mineral system approach interprets the formation of ore deposits in terms of source, pathway, and sink processes, with the aim of improving ore exploration. Magmatic Niu2013Cuu2013PGE sulfide deposits form by the segregation and accumulation of immiscible sulfide melts from mafic or ultramafic magmas. The mineral system approach for these deposits mainly investigates (i) the geodynamic setting, (ii) sources and compositions of ore-forming magmas, (iii) the magma migration pathway at crustal scale, (iv) magma focusing and emplacement mechanisms at deposit scale, (v) chemical and physical mechanisms for ore precipitation. Here we discuss these points using recent experimental studies that shed light on previously neglected processes, using the Noril’sk-Talnakh province in Russia and the Central Lapland Greenstone Belt in Finland as case studies. The implications of the experimental works are also presented in terms of ore exploration at the province, camp and deposit scales.