Acquisition of a gas source mass spectrometer for high precision - high sensitivity (delta)17O and (delta)18O analyses of silicates

该奖项将为高灵敏度/高精度气源质谱仪的收购提供资金，作为我们涉及高空间分辨率和超高精度三重氧同位素地球化学的新研究计划的基础。这种令人兴奋的测量地质材料17 O值微小变化的技术尚处于起步阶段，在地球科学中具有广泛的潜在应用。超高分辨率17 O测量的应用将是三名即将入学的研究生（一名女性）论文工作的一个组成部分，并最终将向更广泛的地质界展示这项新技术的潜力。该设施将供从事有关研究项目的外部用户使用。高精度质谱仪是一系列研究主题的基础平台，包括限制古气候变化，了解深时气候，跟踪浅地壳和地幔岩石中的近地表特征，测量从月球和太古代陆地岩石中提取的单个锆石，陨石研究和其他不断发展的项目。该设备将成为两个PI的主要研究工具，并将补充新成立的全校稳定同位素中心（CSI）的其他进展。

This award will provide funds for the acquisition of a high sensitivity/high precision gas source mass spectrometer as a foundation for our new research program involving high-spatial resolution and ultra-high precision triple oxygen isotope geochemistry. This exciting technique of measuring small variations in 17O values of geological materials is in its infancy, with many potential applications across a broad spectrum within Earth Sciences. The application of ultra-high resolution 17O measurements will be an integral part of the thesis work for three incoming graduate students (one woman) and will ultimately serve to demonstrate to the broader geological community the potential for this new technology. The facility will be available to outside users with relevant research projects. It will serve as a platform for future NSF proposals involving student research.The high precision mass spectrometer is the basic platform for a number of research themes,including constraining paleoclimate variations, understanding Deep-Time climate, tracking near-surface signatures in shallow crustal and mantle rocks, measuring individual zircons extracted from lunar and Archean terrestrial rocks, meteoritic studies, and other evolving projects. This equipment will be the primary research tool of the two PIs and will compliment other advances being instituted in the newly formed University-wide Center for Stable Isotopes (CSI).