Upgrade Request for the Triangle Universities Electron Microprobe Facility

9405215博德罗该合同提供42%的资金用于购买和升级一个旧的电子微探头，该探头将在杜克大学地质系安装和操作。该仪器将被添加到三角地球科学微量分析联盟合作协议涵盖的微量分析设备池中，以确保杜克大学、北卡罗来纳大学教堂山分校和北卡罗来纳州立大学罗利分校的教职员工和学生可以免费使用该仪器。升级后的电子探针系统将能够以微米量级的空间分辨率对固体样品中的主要和次要元素进行准确的元素化学分析。电子微探头是处理地球材料化学的地质研究的基本工具，将在地球科学的各种研究和教学项目中使用。*9406684约翰逊本奖项为威斯康星大学麦迪逊分校地质和地球物理系放射性同位素实验室的一名技术人员提供部分资金支持。该技术人员将协助操作和维护实验室的设备，其中包括一台多采集器热电离质谱仪以及用于样品制备和数据分析的相关仪器。该实验室是大量校内外研究人员在地球科学研究和教学项目中所需的质谱分析资源。研究应用包括北冰洋沉积物、地幔地球化学、火山作用、密歇根盆地和威斯康星州Arch省的碳酸盐年代学以及太古宙和元古界花岗岩。该技术人员还将参与实验室的技术开发工作，包括开发用于定量测量Hf的同位素S的新方法。***

9405215 Boudreau This award provides 42% of the funds for the acquisition and upgrade of a used electron microprobe that will be installed and operated in the Geology Department at Duke University. The instrument will be added to the microanalytical equipment pool covered by a Cooperative Agreement of the Triangle Earth Science Micro-analytical Consortium, assuring that it will be freely available for shared use by staff and students of Duke University, The University of North Carolina at Chapel Hill, and The North Carolina State University at Raleigh. The upgraded electron microprobe system will be capable of accurate elemental chemical analysis of major and minor elements in solid samples with a spatial resolution on the order of micrometers. The electron microprobe is a basic tool of geological research dealing with the chemistry of earth materials and will be used in a variety of research and teaching projects in the earth sciences. *** 9406684 Johnson This award provides partial funding for the support of a technician assigned to the Radiogenic Isotope Laboratory in the Department of Geology and Geophysics at the University of Wisconsin, Madison. The technician will assist in the operation and maintenance of the laboratory's equipment that includes a multicollector thermal ionization mass spectrometer and associated instrumentation for sample preparation and data analysis. The laboratory is a resource for mass spectrometric analysis needed in research and teaching projects in the earth sciences by a large number of researchers on-campus and off-campus. Research applications include work on Arctic Ocean sediments, mantle geochemistry, volcanism, geochronology of carbonates in the Michigan Basin and Wisconsin Arch provinces, and Archean and Proterozoic granites. The technician will also participate in the technical developmental work of the laboratory, including the development of new methods for the quantitative measurement of the isotope s of hafnium. ***