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P. Weis, T. Driesner, D. Coumou and S. Geiger Hydrothermal, multiphase convection of H2O-NaCl fluids from ambient to magmatic temperatures: a new numerical scheme and benchmarks for code comparison Geofluids 14

Version of Record online: 25 MAR 2014 | DOI: 10.1111/gfl.12080

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We present a new numerical scheme for multiphase convection of salt water at magmatic-hydrothermal conditions based on the control volume finite element method. In a series of benchmarks with HYDROTHERM and TOUGH2, we find very good agreement of the simulated hydrothermal systems. Simulations at high-temperature, high-salinity conditions outside of the range of these models show the influence of solid halite on dynamic flow behavior and suggest that salt from magmatic degassing is not easily vented or accommodated within the crust.

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