MRI: Acquisition of an XRF Core Scanner for the Lamont-Doherty Core Repository

该项目将支持获取x射线荧光（XRF）岩心扫描仪，该扫描仪能够对沉积物岩心和其他地质材料（如板状岩石岩心或珊瑚）进行自动化、高通量、高分辨率地球化学分析。陆地和海洋沉积物和岩心的地球化学分析是研究过去和现在气候变化、地球构造史和人为环境干扰的重要组成部分。特别是在气候研究中，需要高分辨率的地球化学和矿物学代理数据来模拟和理解几十年到数百万年的气候变化机制。这一提议最重要的三个更广泛的影响是：a)建立一个区域分析设施，为纽约三小时半径内的科学家和学生提供服务；b)为哥伦比亚大学众多即将获得终身教职的教员和科学家提供增强的和必要的分析能力；c)获得一种仪器，为研究生的职业生涯和所选领域提供重要的培训。此外，XRF设施将提高前来参观和/或在库中工作的许多学生和非专业人员的教育和研究经验。Lamont-Doherty核心资源库的访客数量在过去四年中急剧增加，因为资源库已发展成为同事、当地大学、高中、当地实习生项目、ELHI教师及其当地专业组织、研讨会/会议与会者和记者等的教育和推广中心。仓库的目标是创造一个环境，使其能够教育所有教育水平的学生和成年人，同时激发好奇心和奇迹。特别的努力是确保参观者了解（以适合年龄的方式）每天在储存库中开展的科学与所有公民都应该了解的进化、自然资源可用性和气候变化等更大问题之间的联系。XRF数据被用于研究陆地干旱和降水历史、冰川历史、地下水健康问题、二氧化碳封存以及渔业和资源污染问题等多种主题。由地球科学理事会资助的众多科学项目将从XRF核心扫描仪的收购中受益。此外，东北走廊内的许多科学家也将受益于拉蒙特分析设施的扩建。许多在陆地或海上进行nsf资助的岩芯探险的科学家都认识到在Lamont-Doherty岩芯储存库取样和存档岩芯的好处，特别是如果他们的岩芯需要冷藏。Lamont-Doherty地球观测站的XRF核心扫描仪将达到加强向内部和外部调查人员提供的分析服务的目的，并使该区域的学生更容易积极参与他们与其顾问一起进行的研究。

This project will support the acquisition of an X-ray fluorescence (XRF) core scanner capable of automated, high-throughput, high-resolution geochemical analysis of sediment cores and other geological materials such as slabbed rock cores or coral. The geochemical analysis of sediment and rock cores, from land and sea, is a critical component of research studying past and present climate change, Earth's tectonic history, and anthropogenic disturbance of our environment. In climate research especially, high-resolution geochemical and mineralogical proxy-data is needed to model and understanding mechanisms of climate change on time scales ranging from decades to millions of years. The three most important broader impacts of this proposal are a) the establishment of a regional analytical facility that will serve scientists and students within a three hour radius of New York; b) the provision of enhanced and needed analytical capability to numerous pre-tenure faculty and scientists at Columbia University; and c) the acquisition of an instrument that will provide graduate student training central to their professional life and chosen fields. In addition, the XRF facility will enhance the educational and research experience of the many students and laypeople that come to visit and/or work in the Repository. The number of visitors to the Lamont-Doherty Core Repository has increased dramatically over the last four years as the Repository has evolved into an educational and outreach center for colleagues, local colleges, high schools, local intern programs, ELHI teachers and their local professional organizations, workshop/conference attendees, and journalists, among others. The goal of the Repository has been to create an environment that lends itself to educating students and adults at all educational levels while simultaneously inspiring curiosity and wonder. Particular effort has been put into to ensuring that visitors understand (in an age-appropriate way) the link between the science carried out every day in the Repository and the larger, issues of evolution, natural resource availability, and climate change that all citizens should understand. XRF data are used to study topics as diverse as terrestrial drought and precipitation history, glacier history, groundwater health issues, CO2 sequestration, and fisheries and resource pollution issues. Numerous scientific projects based at Lamont, funded by programs spanning the breadth of the Geosciences Directorate, will benefit from the acquisition of the XRF core scanner. In addition, numerous scientists within the northeast corridor will also benefit from the expansion of Lamont's analytical facilities. Many scientists who run NSF-funded coring expeditions, on land or sea, recognize the benefits of sampling and archiving their cores at the Lamont-Doherty Core Repository, especially if their cores require cold storage. An XRF core scanner at Lamont-Doherty Earth Observatory will meet the objective of enhancing the analytical services offered to internal and external investigators, as well as making it much easier for students in the region to be active participants in the research they are undertaking with their advisors.