Apatite as an indicator of fluid salinity in subduction zone settings : implications for the deep earth chlorine cycle
In search of a parameter to monitor the variation in the salinity of subduction zone fluids, piston-cylinder experiments have been conducted to investigate chlorine partitioning behaviour in subducted sediment systems at subduction zone conditions. Apatite was found to be a prime candidate for monitoring fluid Cl content, as it represents the most chlorine rich phase. Chlorine partition coefficients between apatite and melt/aqueous fluid (DCl) show a general increase with increasing...[Show more]
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