Acquisition of instrumentation for volatile analyses in Earth Sciences

0743540Fischer该提案寻求资金购买双检测器气相色谱仪和四极杆质谱仪。GC和QMS系统将用于He， Ne, Ar, N2, O2, H2, CH4， CO， CO2和H2S分析，并将扩展新墨西哥大学火山和热液分析实验室可用的分析工具。提出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。提出了能力的总体扩展。几项研究工作将通过此次收购得到加强。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结晶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物来分析地幔捕虏体的形成，分析来自温泉的气体（H2、H2S、CO2、CH4和CO）来研究与热液系统相关的化学岩石自养，以及其他广泛学科范围内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，具有完整的样品准备能力。一名博士生将参与仪器的安装和配置。所有支援人员（电子工程师、稳定同位素地球化学家、质谱支援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仪器的运行。这个实验室能容纳多个学生吗？有几位来自其他机构。大约有10名新墨西哥大学研究生在他们的论文工作中使用了该设施，两名本科生在他们的荣誉工作中使用了VHFAL数据。相关的外展活动包括E&amp；PS高级论文项目支持，少数民族参与联盟（克罗西是PI）和正在进行的GK-12努力。该仪器将被纳入火山学夏季实地课程

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.***