MRI: Acquisition of Thermal Ionization Mass-Spectrometer for UCSC W.M. Keck Facility

该合同为购买一台新的热电离质谱仪（TIMS）提供资金，该质谱仪将集成到加州大学圣克鲁斯分校的W.M. Keck同位素实验室中。TIMS将设在最近翻修的气候控制实验室和湿化学清洁实验室内，这些实验室需要为同位素分析准备地质样品。这个开放用户设施的重新开放将促进新的研究，并提供在使用高精度同位素方法方面培训本科生、研究生和博士后研究人员所需的工具。地球和行星科学系，是最大的地球科学系之一？该校拥有150多个专业，学生群体中有40%以上来自代表性不足的种族背景，一年级学生占第一代大学生的41%。该奖项的外展包括一个小型赠款计划，可用于内部和外部用户，以支持探索性和发展性研究。该设施将允许高精度的U-Pb和u系列地质年代学定年，研究应用于大陆和海洋地壳的起源和演化，火山系统的动力学以及冰川作用和气候变化的时间和速度。其他功能包括Sr， Ca， Nd和Pb同位素系统的测量，UCSC地球和海洋科学家应用这些系统来重建古海水的变化，以响应构造隆起，气候，生物地球化学循环和海洋环流的变化。加州大学圣迭戈分校的古生物学家和生态学家使用同样的工具来研究食物网动态和生物在现在和过去的觅食范围。

This award funds the acquisition of a new Thermal Ionization Mass Spectrometer (TIMS) to be integrated into the W.M. Keck Isotope Laboratory at the University of California, Santa Cruz. The TIMS will be co-located within the recently renovated climate-controlled laboratory and wet chemistry clean labs needed for the preparation of geologic samples for isotopic analysis. The reopening of this open-user facility will catalyze new research and provide the tools needed to train undergraduate, graduate and postdoctoral researchers in the use of high precision isotopic methodologies. The Earth and Planetary Science department, which is one of the largest Earth Science department?s in the country with over a 150 majors, has a population representative of the student body which includes over 40% from underrepresented ethnic backgrounds and a first year class made up of 41% of first generation college students. Outreach from this award includes a mini-grants program, available to internal and external users, to support exploratory and developmental research.This facility will allow high precision U-Pb and U-series geochronologic dating with research applied to the origin and evolution of the continental and oceanic crust, the dynamics of volcanic systems and the timing and rate of glaciations and climatic change. Additional capabilities include measurements of the Sr, Ca, Nd, and Pb isotope systems, which are applied by UCSC Earth and Marine scientists to reconstruct variations in paleo-seawater in response to changes in tectonic uplift, climate, biogeochemical cycling and ocean circulation. UCSC paleontologists and ecologists use these same tools to study food web dynamics and foraging ranges of organisms in the present and past.