Upgrade of Electron Microprobe for Earth Science and Materials Research at the University of South Carolina

这项提案寻求167K美元的资金，用于购买升级南卡罗来纳大学现有电子探针(SX-50)的部件。探测器是1986年生产的，需要几个更新的硬件和软件组件。所要求的是一个新的WDS自动化系统，包括一台基于Windows的采集和分析计算机、用于控制探测器和整合EDS和WDS数据的新软件、一个新的EDS探测器和相关的采集系统，以及一个新的阴极发光探测器。该大学将提供5万美元的配套资金。升级后的EMP设施将使私人投资机构能够继续开展涵盖地质、公共卫生、工程和材料研究的多学科研究项目。PI研究火成岩过程，旨在了解与俯冲相关的岩浆的物理和化学过程以及导致它们形成的条件。令人感兴趣的地区是阿卢提亚人和堪察加人。通过全岩地球化学测量、铅、锶、钕、氢同位素比值、斑晶和玻璃包裹体电磁脉冲分析等方法进行研究。Co-Pi Bizimis专注于使用详细的地幔捕虏体地球化学研究上地幔过程。计划中的电磁脉冲使用包括对矿物边缘反应、扩散轮廓、次要基质相和学生培训的详细观察。Co-Pi Barbeau研究沉积和构造。重点包括确定矿物元素组成，包括CL分析，确定沉积物来源，以及约束板块构造和运动学重建。Co-Pi Hintz将使用电磁脉冲来更好地了解有孔虫、方解石和文石测试中的元素丰度。这些丰度将被用作古记录中现有环境条件的代用品。赵连培研究地幔过程和核废料管理。电磁脉冲将在确定与地幔有关的过程、成分和演化方面发挥关键作用。此外，电磁脉冲设施将为材料研究提供支持。EMP被纳入矿物学、火成岩和变质岩石学的本科生和研究生课程。其他系(生物学)的教授也教授电磁脉冲方法。目前的调查支持由NSF赞助的研究，这些研究产生了同行评议的出版物。***

0841461Yogodzinski This proposal seeks funding of ~$167K to purchase components to upgrade an existing electron microprobe (SX-50) at the University of South Carolina. The probe is 1986 vintage and needs several updated components, both hardware and software. Requested are a new WDS automation system including a Windows-based acquisition and analysis computer, new software to control the probe and integrate EDS and WDS data, a new EDS detector and related acquisition system, and a new cathodoluminescence detector. The University will contribute $50K in matching funds. The upgraded EMP facility will allow the PIs to continue multidisciplinary research projects encompassing geologic, public health, engineering and materials research. The PI studies igneous processes aiming to understand the physical and chemical processes of subduction-related magmas and the conditions leading to their formation. Areas of interest are the Aluetians and Kamchatka. Studies are conducted by measuring whole-rock geochemistry, Pb, Sr, Nd, and Hf isotopic ration, and phenocryst and glass inclusion EMP analysis. Co-PI Bizimis focuses on upper mantle processes using detailed mantel xenolith geochemistry. Planned EMP use involves detailed observations of mineral rim reactions, diffusion profiles, minor matrix phases and student training. Co-PI Barbeau studies sedimentation and tectonics. Foci include determining mineral elemental compositions including CL analysis, resolving sediment provenance, and contraining plate tectonic and kinematic reconstructions. Co-PI Hintz will use the EMP to better understand elemental abundances in foraminifera calcite and aragonite tests. These abundances will be used as proxies for existing environmental conditions in the paleorecord. Co-PI Zhao studies mantle processes and nuclear waste management. The EMP will be critical in determining mantle-related processes, composition and evolution. Additionally, the EMP facility will support materials research. The EMP is incorporated into undergraduate and graduate-level courses in mineralogy and igneous and metamorphic petrology. Professors from other departments (Biology) also teach EMP methods. The current probe supports NSF-sponsored research which produces peer-reviewed publications. ***