Noble-metal mineralization of the Adycha–Taryn metallogenic zone: geochemistry of stable isotopes, fluid regime, and ore formation conditions

The regional geologic setting of the Adycha–Taryn metallogenic zone, one of the areas most productive for noble-metal mineralization in northeastern Russia, is discussed. The intricate metallogenic history of the zone and the prolonged geodynamic activity of its ore-hosting structures are documented. Different types of mineralization, such as hydrothermal-metamorphogenic, gold–bismuth, gold–quartz, gold–antimony, and silver–antimony, are...