Mass Transfer, Oxygen Isotopic Variation and Gold Precipitation in Epithermal Systems: A Case Study of the Hishikari Deposit, Southern Kyushu, Japan

摘要

Geochemical and mineralogical data (bulk composition, hydrothermal alteration, oxygen isotopes), thermodynamic considerations and dissolution kinetics-fluid flow coupling model indicate that mixing between hydrothermal solutions and acidic groundwater plays an important role in hydrothermal alteration and gold deposition at the Hishikari epitermal gold mining district, southern Kyushu, Japan.