引言现代地热系统的研究给浅成低温热液贵金属矿床和贱金属矿床的形成机理带来了新认识。在许多研究中,蒸气蒸发后在一个大气压条件下收集的地热水样品中测到的微量金属的浓度,可用来表示地热系统深部的这些微量金属的浓度。其假设是在地热流体排泄过程中金属不会发生有意义的沉淀。然而,在新西兰奥哈阿基(样品编号为BR)和卡韦劳(样品编号 Introduction The study of modern geothermal systems has brought new insights into the formation mechanism of epithermal precious metal deposits and base metal deposits. In many studies, the concentration of trace metals detected in samples of geothermal water collected under one atmosphere of vapor after vaporization can be used to indicate the concentrations of these trace metals in the deep geothermal system. It is assumed that there is no meaningful precipitation of metals during geofluid discharge. However, Ohaki, New Zealand (sample number BR) and Kavewell (sample number