Acquisition of instrumentation for volatile analyses in Earth Sciences

0743540费舍尔这项提案寻求资金，以获得一台双检测器气相色谱仪和一台四极质谱计。GC和QMS系统将用于He、Ne、Ar、N2、O2、H2、CH4、CO、CO2和H2S分析，并将扩大新墨西哥大学火山和热液流体分析实验室可用的分析工具。建议的仪器的主要优点是更高的灵敏度，允许更小的样本量和更快速的分析。提出了全面扩展能力的建议。通过这次收购，几项研究工作将得到加强。重点项目包括利用CO2、N2、He和Ar丰度来了解弧后玻璃和弧斑晶体中的地幔挥发性成分，通过分析变质流体包裹体中捕获的挥发分来分析地幔捕虏体的形成，分析来自温泉水的气体(H2、H2S、CO2、CH4和CO)以研究与热液系统有关的化学自养，以及其他广泛学科范围的微环境地球化学分析。该仪器将被安置在一个新装修的空间内，具有全面的样品准备能力。一名博士生将参与仪器安装和配置。所有支持人员(电子工程师、稳定同位素地球化学家、质谱学支持技术和计算机网络专家)均由大学提供。学生和博士后将大量参与该仪器的运行。实验室支持多名学生吗？一些来自其他机构的来访者。大约有10名北卡罗来纳大学的研究生在他们的论文工作中使用了该设备，两名本科生在他们的荣誉工作中使用了VHFAL数据。相关的外联活动包括E&P；PS高级论文项目支助、少数群体参与联盟(Crossey Is PI)和正在进行的GK-12努力。该仪器将集成到火山学夏季野外课程中。*

0743540Fischer This proposal seeks funding to acquire a dual-detector gas chromatograph and a quadrupole mass spectrometer. The GC and QMS systems will be used for He, Ne, Ar, N2, O2, H2, CH4, CO, CO2, and H2S analyses and will expand the analytical tools available at the Volcanic and Hydrothermal Fluids Analyses Laboratory at the University of New Mexico. The major advantage of the proposed instrumentation is greater sensitivity allowing smaller sample sizes and more rapid analyses. A general expansion of capabilities is proposed. Several research efforts will be enhanced through this acquisition. Highlighted projects include using CO2, N2, He, and Ar abundances to understand mantle volatile composition in back-arc glasses and arc phenocrysts, analyzing the mantle xenolith formation by assaying trapped volatiles in metamorphic fluid inclusions, analyzing gases (H2, H2S, CO2, CH4 and CO) from hot spring waters to investigate chemolithoautotrophy associated with hydrothermal systems, and other microenvironmental geochemistry analyses over a broad discipline range. The instrument will be housed in a newly renovated space with full sample prep capabilities. A PhD student will be involved with instrument installation and configuration. All support personnel (electronics engineer, stable isotope geochemist, mass spec support tech and computer network specialist) are provided by the University. Students and post-docs will be heavily involved in running the instrument. The laboratory supports multiple students ? several visiting from other institutions. About 10 UNM graduate students have used the facility for their thesis work and two undergraduates have used VHFAL data in their honors work. Associated outreach includes E&PS senior thesis project support, the Alliance for Minority Participation (Crossey is PI) and ongoing GK-12 efforts. The instrument will be integrated into a volcanology summer field course.***