Facility Support: The Arizona State University SIMS Laboratories

这项奖励将部分资助亚利桑那州立大学二次离子质谱仪(SIMS)实验室作为国家科学基金会的多用户设施。这些实验室通过促进SIMS对微量元素和同位素比率的微量分析为研究人员提供支持。通常要求的分析实例包括：1)测量火山喷发后回收的晶体中捕获的玻璃熔体包裹体的H2O、CO2和微量元素含量；2)粘土矿物中的硼、锂含量和同位素比率；3)对来自低温和高温环境的矿物进行广泛的微量元素微量分析；以及4)对实验样品进行深度剖面分析，以确定微量元素扩散系数。这种支持的形式还包括培训来访者使用SIMS技术，并根据研究人员的需要开发新的分析方案。参观者包括本科生和研究生，博士后研究人员和来自广泛的地球科学机构的教职员工。这个设施支持奖将使亚利桑那州立大学的二次离子质谱仪、亚利桑那州立大学人员的广泛专业知识和亚利桑那州立大学开发的新分析技术，供来自美国各地的研究人员在高低温地球化学、地球生物学、考古学、气候科学和太阳系早期历史等领域使用。

This award will partially fund the ASU secondary ion mass spectrometry (SIMS) laboratories as an NSF national, multi-user facility. The laboratories support researchers by facilitating SIMS microanalyses for trace elements and isotope ratios. Examples of commonly requested analyses include: 1) the measurement of H2O, CO2, and trace element contents of glassy melt inclusions trapped in crystals recovered from explosive volcanic eruptions, 2) boron and lithium amounts and isotopic ratios in clay minerals, 3) a wide range of trace element microanalyses on minerals from low- and high-temperature environments, and 4) depth profile analyses of experimentally-derived samples to determine trace element diffusion coefficients. This support also takes the form of training visitors to use the SIMS technique and development of new analytical protocols in response to the needs of researchers. Visitors include undergraduate and graduate students, post-doctoral researchers and faculty from a wide range of Earth Science institutions.This facility support award will make the Arizona State University secondary ion mass spectrometry instrumentation, the extensive expertise of the ASU personnel and novel analytical techniques developed at ASU available to researchers from across the US in areas including high and low-temperature geochemistry, geobiology, archaeology, climate science, and the early history of the solar system.