Pustaka Ilmiah Universitas Padjadjaran

Abstrak

Ore Minerals Assemblage and Geochemical Characteristics of Gold-Telluride-Sulfide Mineralization in the Bantarhuni Vein of Arinem Deposit, West Java, Indonesia

The mineralization at the Bantarhuni vein occurred as polymetallic association. Gold has been deposited during stages I and II, while argentite and Au-Ag rich- tellurium minerals during stage II. Te-bearing minerals are present in association with sulfide minerals in stage II mineralization and its textural relationships suggest that introduction of tellurides were postdate formation of sulfide minerals and it is closely related to the later stage introduction of sulfosalt and oxide minerals in the system. At the vein scale, paragenetic observations indicate that fluids might have evolved from reduced LS-IS to more oxidized HS solutions. Textures, mineralogy and stable isotopes data suggest that the Arinem and Bantarhuni veins are co-genetic.