Experimental Determination of Oxygen and Hydrogen Isotope Fractionation Factors Between Alunite and Water

将进行实验以确定氧和氢 明矾石和水之间的同位素分馏 温度范围为250至450 oC。 交换实验将在 在冷密封热液容器中进行，运行1 - 3次 月的持续时间，并将涉及耦合同位素交换 与Na-K交换以促进达到平衡。 明矾石分馏因素的知识将允许校准 明矾石-石英和明矾石-黄铁矿同位素地质温度计， 将允许解释含明矾石矿床， 形成的温度和化学成分， 产生它们的各种液体

Experiments will be conducted to determine oxygen and hydrogen isotope fractionation between alunite and water over the temperature range of 250 to 450oC. Exchange experiments will be conducted in cold seal hydrothermal vessels with runs of 1 to 3 months duration, and will involve coupling of isotope exchange with Na-K exchange to facilitate attainment of equilibrium. Knowledge of alunite fractionation factors will allow calibration of alunite-quartz and alunite-pyrite isotope geothermometers, and will permit interpretaion of alunite-bearing deposits in terms of temperatures of formation and the chemical compositions of the various fluids that produced them.