Influence of temperature, pressure, and fluid salinity on the distribution of chlorine into serpentine minerals

Abstract Serpentinization produces serpentine minerals that have abundant water and fluid-mobile elements ( e.g. , Ba, Cs, and Cl). The dehydration of serpentine minerals produces chlorine-rich fluids that may be linked with the genesis of arc magmas. However, the factors that control the distribution of chlorine into serpentine minerals remain poorly constrained. We performed serpentinization experiments at 80–500 °C and pressures from vapor saturated pressures to 20 kbar on peridotite, orthopyroxene, and olivine with