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

9315683韦伯斯特这个项目将阐明氯在岩浆系统中的行为。这些结果将应用于含氯流体/熔体的出溶过程、热液中络合氯金属的形态和迁移、或从喷发的岩浆中向大气排放氯。该研究计划包括一系列实验，以确定：(1)氯化物熔体(含氯化钠、氯化钾和三氯化铝)在花岗岩熔体中的溶解度，(2)氯在花岗岩熔体和共存水相之间的分配，以及(3)P、T和熔体组成对这两个目标的影响。实验将在0.001至1.5kbar的压力和700至1000℃的温度下进行，熔体成分将包括过碱性、亚铝和过铝单长花岗岩以及含Fe-、Ca-、Li-、B-、F-和CO2的花岗岩；实验将在一定的氯浓度范围内进行。

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.