Numerical Simulation of Multiphase Fluid Flow in Hydrothermal Systems

摘要

Ore-forming hydrothermal systems often show signs of boiling. In certain classes of deposits-such as low-sulfidation epithermal Au-Ag veins-the chemical consequences of boiling are often considered the cause of ore mineral precipitation, while in others the role of boiling may rather lie in enforcing a favorable pressure-temperature regime. In yet other cases it may, however, be just a passive record of the conditions during ore formation, with little or no direct causal relation to the actual metal enrichment.