Porphyry copper and high-sulfidation epithermal Au (Ag) mineralization, igneous Petias Blancas complex of Jasimana (Miocene), Salta, NW Argentina
Rioja, S; Santiago S, H; Castillo, L; Castillo, A; ,
This article describes Cu-Au mineralization associated with Porphyry and high-sulfidation Au (silver) epithermal systems in the Igneous Perias Blancas Complex (CIPB) of Jasimana (middle Miocene), Salta province, NW Argentina. The area is part of the Central Andes, located in a zone of intersection between regional structural lineaments of NW-SE trend and NE-SW trend. The following vein-hosted mineralization was identified: quartz pyrite, chalcopyrite, hematite-magnetite with gold (up to 3 g/t Au). Field studies and petrographic and geochemical studies enabled us to recognize areas with seritization, silicification, and propylitic alteration, associated with Au, Ag, Cu, Mo, Pb, Zn and As anomalies. This new area adds up to the already known mineralization of subvolcanic bodies of the Central Andes of Argentina, such as Pan De Azucar, Cerro Redondo, Chinchillas, Orosmayo, Pancho Arias, Inca Viejo, Diablillos, among others.
MercierLangevin, P; Dube, B; Bardoux, M; Ross, PS; Dion, C;