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

9315683韦伯斯特本项目将阐明Cl在岩浆系统中的行为。 结果将发现应用程序中涉及含Cl流体/熔体的出溶，在热液流体中的Cl-络合的矿石金属的形态和运输，或在Cl从喷发岩浆排放到大气中。 该研究计划包括一系列的实验，以确定：（1）氯化物熔体（NaCl-，KCl-，和AlCl 3轴承）在花岗岩熔体中的溶解度，（2）花岗岩熔体和共存的水相之间的氯的分配，和（3）P，T，和熔体成分对这两个目标的影响。 实验将在0.001至1.5千巴的压力和700至1000摄氏度的温度下进行。 熔体成分将包括过碱性、次铝质和过铝质单花岗岩以及含Fe、Ca、Li、B、F和CO2的花岗岩;实验将在一系列Cl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.