Collaborative Research: Comprehensive Geochemical Sampling and Multicomponent Thermochemical Equilibria of Volcanic Emissions

该项目是针对综合性的持续研究 火山喷发产物的现场取样和测量. 活火山 这将涉及到持续的多方法领域 在两个或三个实地进行取样和测量工作， 未来两年 新的数据和样本将被分析 并使用新的热化学模型进行解释， 涉及40多个组成部分和500多个物种;这些 模型构成了理解众多 当排放物产生时发生的化学反应， 特别是气体，从深处上升，冷却和氧化， 地球的大气层。 PI将使用新的现场测量 技术，拉曼光谱，它可以测量发射率 许多不同的物种。 根据空气污染方面的经验 新的拉曼技术可以测量两个或多个 在真实的时间里同时存在的物种;这可能被证明是 对火山喷发预测有用。 这项工作将增加 由于火山喷发数据不足， 小喷发现象的精确缩放，帮助指导 火山活动对大气化学影响的模型， 或许能让我们更好地了解某些矿石 存款 这是一个合作项目， 密歇根技术大学的马克·里德 来自俄勒冈州。

This project is for continued studies directed at comprehensive field sampling and measurement of volcanic emission products at active volcanoes. It will involve continued multi-method field sampling and measurement efforts at two or three field sites in the next two years. The new data and samples will be analyzed and interpreted using new thermochemical models which now address more than 40 components and over 500 species; these models form the basis for understanding the multitude of chemical reactions which happen when emission products, especially gases, ascend from depth, cool and oxidize in the earth's atmosphere. The PIs will use a new field measurement technique, Raman spectroscopy, which can measure emission rates of many different species. Based on experience in air pollution monitoring, the new Raman technique can measure two or more species contemporaneously in real time; this may prove to be useful for eruption forecasting. This work will add to the inadequate data base on volcanic emissions, allow for more accurate scaling of phenomena of small eruptions, help guide models of the impact of volcanism on atmospheric chemistry and possibly provide a better understanding of some kinds of ore deposits. This is a collaborative project between William Rose of Michigan Technical University and Mark Reed of the University of Oregon.