Acquisition of a new noble gas mass spectrometer and extraction system for the University of Michigan

该奖项将支持购买一台新的惰性气体质谱仪和建造两条新的提取线？一个是地壳流体，另一个是密歇根大学地球与环境科学系的岩石和矿物。密歇根大学目前的设备已经陈旧，现在正在对测量效率以及使用更现代化的设备实现更高精度的能力产生影响。作为私家侦探和合作私家侦探？的研究兴趣也得到了扩展，目前的MAP215和提取系统已被压入服务分析样品，这些样品远比最初计划的淡水样品更具挑战性。追求新的研究方向需要新的和更强大的提取和纯化惰性气体线以及新的，更有能力的质谱仪，这将能够分析更广泛的样品。通过购买一台新的质谱仪以及建造两个新的萃取系统，取得了多项智力成就。例如，它将使我们能够对电子区域古老流体中的惰性气体进行常规研究，以进一步研究它们在保存和保存太阳惰性气体特征方面的潜力。它还将导致更好地了解惰性气体在非饱和区的行为，从而改进惰性气体温度模型和更准确的大陆地区古气候重建。获得这种新设备也将导致更好地了解惰性气体在冰和冰川中的行为，使我们能够限制覆盖冰湖的时间演变（例如，在南极洲），因此，对过去的气候在该地区。此外，地幔岩石中稀有气体同位素的分析将使人们对地幔地球化学有新的认识。 总的来说，该奖项所带来的精度提高和产量增加将对多个领域产生重大的积极影响，从地幔地球化学到古气候学，水文地质学和环境。

This award will support the acquisition of a new noble gas mass spectrometer and construction of two new extraction lines ? one for crustal fluids and one for rocks and minerals in the Department of Earth and Environmental Sciences at the University of Michigan. Current equipment at the University of Michigan is old and is now taking a toll in terms of measurement efficiency as well as its ability to reach greater levels of accuracy made possible with more modern equipment. As the PI and co-PIs?s research interests have also expanded, the current MAP215 and extraction system have been pressed into service analyzing samples that are far more challenging than the originally planned freshwater samples. Pursuing new directions of research requires new and more robust extraction and purification noble gas lines as well as a new, more capable mass spectrometer which will enable the analysis of a wider variety of samples. The intellectual achievements made possible through the acquisition of a new mass spectrometer as well as the construction of two new extraction systems are multiple. For example, it will allow us to conduct routine studies of noble gases in old fluids in cratonic regions to further investigate their potential in holding and preserving solar noble gas signatures. It will also lead to an improved understanding of noble gas behavior in the unsaturated zone and thus, improved noble gas temperature models and more accurate paleoclimate reconstructions in continental areas. Acquisition of this new equipment will also lead to a better understanding of noble gases behavior in ice and glaciers allowing us to place constraints in the temporal evolution of covered ice lakes (e.g., in Antarctica) and thus, on the past climate in the region. Furthermore, analyses of noble gas isotopes in mantle rocks will allow new insights into mantle geochemistry. Overall, the improved precision and enhanced output resulting from this award will have a major positive impact on multiple fields, from Mantle Geochemistry to Paleoclimatology, Hydrogeology and the Environment.