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

花岗岩熔体中 C1 溶解度的实验测定浅地壳条件下花岗岩熔体和水相之间的 C1 分配

• 批准号: 9315683
• 负责人: James Webster
• 金额: $ 10.12万
• 依托单位: American Museum Natural History
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-01-15 至 1997-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9315683&HistoricalAwards=false
• 关键词: Experimental; Determination; C1; Solubility; Granite

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.

9315683 Webster 该项目将阐明 Cl 在岩浆系统中的行为。 研究结果将应用于含氯流体/熔体的溶出过程、热液中含氯络合矿石金属的形态形成和迁移，或从喷发的岩浆中向大气排放氯的过程。 该研究计划包括一系列实验，以确定：(1) 花岗岩熔体中氯化物熔体（含 NaCl、KCl 和 AlCl3）的溶解度，(2) 花岗岩熔体和共存水相之间氯的分布，以及 (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 700o 至 1000oC 的温度下进行。熔体成分将包括过碱性、次铝质和过铝质单质花岗岩以及含 Fe、Ca、Li、B、F 和 CO2 的花岗岩；实验将在一定范围的 Cl 浓度下进行。