Facility Support: Multi-User Facility Support for U-Th-Pb Geochronology and Complementary Isotope Geochemistry and SEM imaging at the Arizona LaserChron Center

设施支持：亚利桑那州 LaserChron 中心的 U-Th-Pb 地质年代学、互补同位素地球化学和 SEM 成像多用户设施支持

• 批准号: 1338583
• 负责人: George Gehrels
• 金额: $ 78.55万
• 依托单位: University of Arizona
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-02-01 至 2017-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1338583&HistoricalAwards=false
• 关键词: Facility; Support; Multi; User; Th

Recent developments in geochronologic methods and instrumentation are revolutionizing many different aspects of Earth Science research. Some of the most exciting advances are being driven by Laser-Ablation ICP Mass Spectrometry (LA-ICPMS), which generates U-Th-Pb ages and complementary geochemical information rapidly and with micron-scale spatial resolution. The Arizona LaserChron Center (ALC) is a multi-user facility that utilizes LA-ICPMS to determine U-Th-Pb ages, Hf isotope ratios, and trace element abundances from a variety of minerals that occur in sedimentary, igneous, and metamorphic rocks. We also utilize a dedicated Scanning Electron Microscope that generates the high-resolution and high-magnification images necessary for state-of-the-art micro-analysis. Primary goals of the ALC are to (1) generate robust geochronologic and geochemical data in support of many different NSF-funded projects, (2) use every aspect of facility operation as an opportunity to train faculty and student researchers in geochronologic theory and methodology, and (3) drive the development of new techniques and applications that take advantage of the high efficiency and fine spatial resolution of LA-ICPMS. Research at the ALC is conducted in a highly collaborative mode, with ALC scientists providing assistance with all aspects of a project (from initial design of the study to final publication of results) and faculty members and students from other institutions visiting the lab to generate their own data and learn the theory and methodology of U-Th-Pb geochronology.Funding from this award will enable the ALC to facilitate the acquisition of geochronologic information in support of a large number of NSF-funded projects, drive the development of numerous new analytical techniques and applications, and provide a broad array of educational opportunities such as teaching short courses at annual meetings, developing materials that can be used in Earth Science courses, creating new tools for displaying and interpreting geochronologic data, and driving the development of a global database "Geochron" that hosts U-Th-Pb geochronologic information. Research conducted at the ALC will continue to generate important new knowledge about the growth of continents, processes of mountain building, generation and dispersal of sediment, formation of mineral and hydrocarbon resources, history of evolutionary changes, and genetic linkages between climate and tectonics.

地质方法和仪器的最新发展正在彻底改变地球科学研究的许多不同方面。一些最令人兴奋的进步是由激光燃烧ICP质谱（LA-ICPMS）驱动的，该质谱（LA-ICPMS）迅速生成U-TH-PB年龄和互补的地球化学信息，并以微分尺度的空间分辨率产生互补的地球化学信息。亚利桑那激光器中心（ALC）是一种多用户设施，利用LA-ICPMS确定U-TH-PB年龄，HF同位素比和来自多种矿物质的痕量元素丰度，这些矿物质发生在沉积物，点燃和变质岩石中。我们还利用了专用的扫描电子显微镜，该电子显微镜产生了最先进的微型分析所需的高分辨率和高磁化图像。 ALC的主要目标是（1）生成强大的地质学和地球化学数据，以支持许多不同的NSF资助的项目，（2）使用设施操作的各个方面作为培训地质理论和方法论中的教师和学生研究人员的机会，以及（3）驱动新技术和应用高效效率的新技术和应用的机会。 Research at the ALC is conducted in a highly collaborative mode, with ALC scientists providing assistance with all aspects of a project (from initial design of the study to final publication of results) and faculty members and students from other institutions visiting the lab to generate their own data and learn the theory and methodology of U-Th-Pb geochronology.Funding from this award will enable the ALC to facilitate the acquisition of geochronologic information in support of a large number NSF资助的项目，推动开发众多新的分析技术和应用，并提供一系列教育机会，例如在年度会议上教短课程，开发可用于地球科学课程中的材料，创建新的工具，以展示和解释地球文学数据，并开发了一个全球数据库“ Geochron”的开发。在ALC进行的研究将继续产生有关大陆增长，山地建筑过程的增长，沉积物的产生和分散，矿物质和碳氢化合物资源的形成，进化变化的历史以及气候与构造之间的遗传联系的重要新知识。