EPITHERMAL GOLD DEPOSITS? A QUICK INSIGHT! Epithermal gold deposits form at shallow crustal levels from hot, mineral-rich fluids circulating through fractures and faults. They are classified into low-sulfidation and high-sulfidation types, each with distinct alteration and mineral assemblages. Common host rocks include volcanic and subvolcanic rocks. These deposits often display quartz veins, breccia zones, and hydrothermal alteration halos, with gold and silver as the main economic metals. Epit

PRIMER EPITHERMAL GOLD DEPOSITS Primer epithermal gold deposits are formed simultaneously with the host rock during geological processes. In Indonesia, most gold deposits are of the epithermal type. These deposits not only yield gold but also other valuable minerals such as silver, copper, lead, zinc, antimony, mercury, tungsten, cadmium, and topaz. Epithermal deposits result from large-scale hydrothermal systems in volcanic environments. Key materials in the formation process include magmatic h