4:30 PM - 4:45 PM
[SMP44-11] Molecular Dynamics Simulations of NaCl-H2O fluid: Prediction of Electrical Conductivity of Salt Water in the Crust
Keywords:Water, Seismogenic zone, Salinity, MD simulation
In this study, we performed classical molecular dynamics (MD) simulations for predicting the electrical conductivity, density, and molecular behavior of NaCl-H2O fluid at elevated temperatures and pressures in the crust. Our H2O interaction model used for the MD simulations has succeeded in reproducing the density and permittivity of H2O at temperatures and pressures over the critical point . This H2O model has been applied for reproducing and predicting the density and isothermal compressibility of NaCl-H2O fluid . Finally, we have derived the electrical conductivity of NaCl-H2O fluid in the pT conditions of the crust .
In this talk, we discuss the behavior of NaCl-H2O fluid in the crust as a function of temperature, pressure, and salinity. The salinity and fluid fraction of NaCl-H2O fluid are discussed for explaining the observed highly conductive zone in the crust.
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