Acquisition of TQ-ICP-MS for Geochemical Research in the Department of Earth and Environmental Science at the University of Minnesota

明尼苏达大学地球与环境科学系采购用于地球化学研究的 TQ-ICP-MS

• 批准号: 1946945
• 负责人: William Seyfried
• 金额: $ 23.18万
• 依托单位: University of Minnesota-Twin Cities
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2020
• 资助国家: 美国
• 起止时间: 2020-04-01 至 2022-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1946945&HistoricalAwards=false
• 关键词: Acquisition; TQ; ICP; MS; Geochemical

This Division of Earth Sciences Instrumentation and Facilities Program award supports acquisition of an inductively coupled plasma mass spectrometer (ICP-MS) which will be used in support of Earth and Ocean science research and research training in the Department of Earth and Environmental Sciences at the University of Minnesota. The instrument will support geochemical research that requires the ability to determine trace element concentrations and isotope ratios in natural fluids to better understand processes that occur in minerals-fluid interactions in high temperature hydrothermal systems in lakes and the oceans, the effects of biological activity on toxic elements introduced into the environment from mining and agricultural activity and for the study of the sedimentary record of Earth’s past climate dynamics. The instrument will support student training in methods of geochemical analysis and will serve as a departmental resource for environmental research on topics of societal relevance including studies with implications for human health hazards related to anthropogenic activities and remediation strategies.Compositional variability of fluids coexisting with minerals in natural aquatic systems in time and space provides fundamental insight on a wide range of processes critical to the chemical evolution and climate history of Earth. Specific research and teaching activities that will benefit from this acquisition include: geochemical controls on sublacustrine and subaerial hydrothermal activity and associated biogeochemistry in Yellowstone National Park; microbially mediated mineral alteration, weathering, and metal and metalloid redox transformations; development of stable potassium isotopes as a novel proxy for the potassium cycle; and development, calibration and application of high resolution dating methods to study changes in Earth climate and ocean chemistry.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

这项地球科学仪器仪器设施奖奖支持收购电感耦合等离子体质谱仪（ICP-MS），该等离子质谱仪将用于支持明尼苏达大学地球与环境科学系的地球和海洋科学研究与研究培训。该仪器将支持地球化学研究，该研究需要确定自然烟道中的痕量元素浓度和同位素比率，以更好地理解湖泊和海洋高温水热系统中矿物 - 流体相互作用中发生的过程，生物学活动对矿物和农业活动的毒性元素的影响，从而导致了矿物和农业活动和农业活性的记录。该仪器将支持学生对地球化学分析方法的培训，并将作为有关社会相关性特定研究和教学活动的环境研究的部门资源，这些研究将受益于这一收购，包括：关于sublacutorine和Sublacutorine on Sublacutorine on Sublacutor和suberyial syprothermal活动的地球化学控制，以及在黄石国家公园的生物地球化学；微生物介导的矿物质改变，风化以及金属和金属氧化还原转化；稳定的钾同位素的发展是钾周期的新代理。以及高分辨率约会方法在研究地球气候和海洋化学变化中的开发，校准和应用。该奖项反映了NSF的法定任务，并且使用基金会的知识分子优点和更广泛的影响审查标准，被认为是值得通过评估来支持的。

项目成果

An experimental and thermodynamic study of sphalerite solubility in chloride-bearing fluids at 300–450 °C, 500 bar: implications for zinc transport in seafloor hydrothermal systems

300-450°C、500 bar 下闪锌矿在含氯流体中溶解度的实验和热力学研究：对海底热液系统中锌传输的影响

• DOI: 10.1016/j.gca.2022.03.026
• 发表时间: 2022
• 期刊: Geochimica et Cosmochimica Acta
• 影响因子: 5
• 作者: Xing, Yanlu;Brugger, Joël;Scheuermann, Peter;Tan, Chunyang;Ji, Shichao;Seyfried, William E.
• 通讯作者: Seyfried, William E.

Experimental study on Fe solubility in vapor-rich hydrothermal fluids at 400–500 °C, 215–510 bar: Implication for Fe mobility in seafloor vent systems

400～500℃、215～510bar 富蒸气热液中铁溶解度的实验研究：对海底喷口系统中铁迁移率的影响

• DOI: 10.1016/j.gca.2021.09.027
• 发表时间: 2021
• 期刊: Geochimica et Cosmochimica Acta
• 影响因子: 5
• 作者: Xing, Yanlu;Scheuermann, Peter;Seyfried, William E.
• 通讯作者: Seyfried, William E.