Acquisition of New-Generation Ion Microprobe for the North East Regional Ion Microprobe Facility (NERIMF) at Woods HoleOceanographic Institution

该合同提供了支持伍兹霍尔海洋研究所(WHOI)一项重大设备采购所需资金的一半。世界卫生组织致力于提供购买大半径、高透射率、二次离子源质谱计系统所需的剩余资金，该系统通常被称为离子微探测器。最近的技术发展使新一代离子探测器能够测量具有极高丰度灵敏度和微米级空间分辨率的地质样品中的同位素物种。WHOI离子微探测器将在伍兹霍尔园区安装和维护，并作为向国家地球科学研究社区开放的设施运营。新仪器的分析能力将用于研究领域，包括地球的早期演化、上地幔动力学(熔融、熔融提取、玄武岩的生成)、深层变质过程(岩石-流体物理化学相互作用)和环境地球化学(利用氧同位素和微量金属在有孔虫和双壳类贝壳中的分布，以监测海水的温度和营养含量的变化)。

This award provides one-half the funding necessary to support a major equipment acquisition at the Woods Hole Oceanographic Institution (WHOI). WHOI is committed to providing the remaining funds needed for the acquisition of a large-radius, high- transmission, secondary ion source mass spectrometer system, more commonly referred to as an ion microprobe. Recent technological developments have made the new generation ion probes capable of measuring isotopic species with extremely high abundance sensitivity and micron-level spatial resolution in samples of geological interest. The WHOI ion microprobe will be installed and maintained at the Woods Hole campus and operated as a facility open to the national geoscience research community. The analytical capabilities of the new instrument will be employed in research areas including the early evolution of the Earth, upper mantle dynamics (melting, melt extraction, generation of basalts), deep-seated metamorphic processes (rock-fluid physicochemical interactions), and environmental geochemistry (use of oxygen isotopes and trace metal distribution in foraminifera and bivalve shells to monitor changes in temperature and nutrient content of seawater).