MRI: Acquisition of a Multicollector Inductively Coupled Plasma Mass Spectrometer for Earth Science Research at the University of Texas at Austin

MRI：德克萨斯大学奥斯汀分校购买多接收器感应耦合等离子体质谱仪用于地球科学研究

• 批准号: 1532097
• 负责人: Jay Banner
• 金额: $ 60.94万
• 依托单位: University of Texas at Austin
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-08-01 至 2018-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1532097&HistoricalAwards=false
• 关键词: MRI; Acquisition; Multicollector; Inductively; Coupled

This award provides funding for the acquisition of a new generation multi-collector inductively coupled plasma mass spectrometer (MC-ICP-MS). This instrumentation would replace the aging MC-ICP-MS currently used by the Jackson School of Geosciences, University of Texas, Austin. Acquisition of a new MC-ICP-MS will expand the research directions and capabilities offered by the Jackson School of Geosciences and enrich educational opportunities for students. JSG faculty are engaged in a variety of outreach activities, and research involving the new instrument will be integrated into an ongoing REU (Research Experience for Undergraduates) program, GK-12 outreach program partnering K-12 teachers and STEM graduate students, and GeoFORCE (a successful college preparatory outreach program targeting Texas minority high school students). Numerous scientists at UT-Austin have both current and planned research projects requiring a new generation MC-ICP-MS analyses. These analytical needs include the development of new techniques in addition to applying existing methodologies to answer new and innovative research questions. These include U-series measurements to determine ages on carbonates. This will be applied to a variety of research topics including studies of cave, pedogenic and lacustrine carbonate deposits and dating of ostrich egg shells to investigate the timing of human evolution. A modern MC-ICP-MS would also facilitate the concurrent measurement of Hf and Pb isotopes and allow us to identify both the isotopic fingerprint and age within a single growth zone in zircons, crucial to investigations of magma chamber evolution and sediment provenance. Additional research applications include high spatial resolution in situ Sr isotope measurements in a) biogenic carbonates in fishes to reconstruct migration histories, b) speleothems in karst hydrologic systems to reconstruct drip-water evolution and climate, and c) feldspar phenocrysts to track magma mixing and crustal assimilation. The new instrument will also be used to measure a variety of isotopes including Li, Os, and Pb for isotopic fingerprinting of mineral phases and bulk rocks and Fe and Zn isotopes to investigate metal uptake in cells.

该奖项为获取新一代多核心电感耦合等离子体质谱仪（MC-ICP-MS）提供了资金。 该仪器将取代德克萨斯大学奥斯汀分校杰克逊地球科学学院目前使用的老化MC-ICP-MS。 收购新的MC-ICP-MS将扩大杰克逊地球科学学院提供的研究方向和能力，并为学生提供丰富的教育机会。 JSG教职员工从事各种外展活动，涉及新工具的研究将融入正在进行的REU（本科生的研究经验）计划中，GK-12的外展计划合作K-12，与K-12教师和STEM研究生合作，以及Geoforce（成功针对Texas Texas少数民族高中生的大学准备课程计划）。 UT-Austin的许多科学家都有当前和计划的研究项目，需要进行新一代MC-ICP-MS分析。 这些分析需求包括开发新技术，除了应用现有方法来回答新的和创新的研究问题。 这些包括U系列测量值，以确定碳酸盐的年龄。 这将应用于各种研究主题，包括研究洞穴，碳酸盐和氯酸盐沉积物以及鸵鸟蛋壳壳的约会，以研究人类进化的时机。 现代的MC-ICP-MS还将促进HF和PB同位素的同时测量，并使我们能够识别锆石单个生长区内同位素指纹和年龄，这对于对岩浆室进化和沉积物的研究至关重要。 其他研究应用程序包括在A）鱼类中的生物生物碳酸盐中进行高空间分辨率测量，以重建迁移历史，b）喀斯特水理系统中的speleothems，以重建滴水水的进化和气候，以及c）feldspar andocrysts，以跟踪岩浆混合和构造杂物。 新仪器还将用于测量各种同位素，包括LI，OS和PB，用于矿物相和块状岩石以及Fe和Zn同位素的同位素指纹识别，以研究细胞中的金属摄取。