Thermodynamic Models of Submarine Hydrothermal Systems

This contribution presents a method for constructing thermodynamic models of convective hydro- thermal systems with an exogenous source of solutions. With the example of a simulation of modern hydrother- mal systems on the ocean floor, the prospects of such a method for the interpretation and forecasting of hydro- thermal mineralization are discussed. A procedure for constructing isotopic chemical models is described using sulfur isotopes as an example. The role of boiling within oceanic hydrothermal systems in the formation of met- alliferous deposits is evaluated. This paper is intended for geologists who specialize in hydrothermal ore depos- its, geochemists, and marine geologists and can be used by students as a guide for the simulation of ore-forming processes.