Experimental Determination of C1 Solubility in Granite Meltsand C1 Partitioning Between Granite Melt and Aqueous Fluid Phases at Shallow Crustal Conditions

这个项目将阐明岩浆系统中Cl的行为。这些结果将应用于含Cl流体/熔体的溶解过程、热液流体中含Cl的矿金属的形成和运移过程，或从喷发的岩浆向大气中排放Cl的过程。该研究计划包括一系列实验，以确定：(1)氯化物熔体（含NaCl-、KCl-和alcl3）在花岗岩熔体中的溶解度；(2)氯化物在花岗岩熔体和共存的水相之间的分布；(3)P、T和熔体成分对这两个目标的影响。实验将在0.001至1.5 kbar的压力和700至1000℃的温度下进行，熔体成分将包括过碱性、亚铝质和过铝质单长花岗岩以及含铁、钙、锂、B、F和二氧化碳的花岗岩；实验将在一定的氯浓度下进行。

9315683 Webster This project will elucidate the behavior of Cl in magmatic systems. The results will find application in processes involving exsolution of Cl-bearing fluids/melts, in speciation and transport of Cl-complexed ore metals in hydrothermal fluids, or in discharge of Cl to the atmosphere from erupting magma. The research program involves a series of experiments to determine: (1) the solubility of chloride melts (NaCl-, KCl-, and AlCl3-bearing) in granitic melts, (2) the distribution of chlorine between granite melt and coexisting aqueous phases, and (3) the effects of P, T, and melt composition on both of these objectives. The experiments will be conducted at pressures of 0.001 to 1.5 kbar and temperatures of 700o to 1000o C. Melt compositions will include peralkaline, subaluminous, and peraluminous haplogranites and Fe-, Ca-, Li-, B-, F-, and CO2-bearing granites; the experiments will be conducted with a range of Cl concentrations.