MRI: Acquisition of a Multi-Collector ICP-MS with Laser Ablation for Geochemical and Geochronological Applications

MRI：获取具有激光烧蚀功能的多接收器 ICP-MS，用于地球化学和地质年代学应用

基本信息

批准号：
1919658
负责人：
Elisabeth Widom
金额：
$ 71.18万
依托单位：
Miami University
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2019
资助国家：
美国
起止时间：
2019-08-15 至 2023-07-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1919658&HistoricalAwards=false
关键词：
MRI Acquisition Multi Collector ICP

项目摘要

This award supports the acquisition of a multi-collector inductively coupled plasma mass spectrometer (MC-ICP-MS) with a laser ablation (LA) system to be housed in the Department of Geology and Environmental Earth Science at Miami University. The (LA)-MC-ICP-MS will complement the existing Triton thermal ionization mass spectrometer (TIMS), creating a state-of-the-art isotope geochemistry facility for student training and research initiatives in a wide range of geoscience and related disciplines. The (LA)-MC-ICP-MS will enable students to gain significant hands-on experience with modern analytical techniques that are becoming widely applied across disciplines in science and medicine, and throughout industry and government employment sectors. The new instrumentation will also be a key component of two new programs that the PIs will develop for training and mentoring of underrepresented groups in STEM: a summer research program for local high school girls, and a First Year Research Experience for minority students, linked to Miami's Louis Stokes Alliance for Minority Participation program.The (LA)-MC-ICP-MS will facilitate research initiatives in the areas of high temperature geochemistry (e.g., crustal evolution, growth of orogenic belts, subduction fluxes, magmatic processes and timescales) and low-temperature geochemistry (e.g., paleoclimate reconstruction, ore deposit formation, fate and transport of environmental contaminants), as well as geoarchaeology, geobiology, geomicrobiology, planetary geology, and nuclear forensics. The research will involve analysis of a wide range of radiogenic (Nd, Pb, Hf, Th, U) and non-traditional stable isotope systems, including several that are in the relatively early stages of development and application, e.g., solution-based Mo, Ag, 235U/238U "stable" isotope systems; and in situ U-Pb and U-Th dating (carbonates) and Sr, Mg, and S isotopes via LA-MC-ICP-MS. As such, acquisition of the proposed instrumentation will contribute to further establishing these isotope systems and techniques as useful geochemical tools that can be used community-wide and applied to a wide range of future scientific investigations.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.

该奖项支持收购迈阿密大学地质与环境地球科学系的激光消融系统（LASER消融（LA）系统），以收购一个多核心耦合等离子体质谱仪（MC-ICP-MS）。（LA）-MC-ICP-MS将补充现有的Triton热电离质谱仪（TIMS），从而在广泛的地球科学及相关学科中创建一种最先进的同位素地球化学设施，用于学生培训和研究计划。（LA）-MC-ICP-MS将使学生能够在现代分析技术方面获得丰富的动手经验，这些技术在科学和医学以及整个行业和政府就业领域都广泛应用。新仪器还将成为PIS将开发两个新计划的关键组成部分，用于培训和指导STEM中代表性不足的群体：针对当地高中女生的夏季研究计划，以及针对少数群体学生的第一年研究经验，与迈阿密的Louis Stokes stokes stokes Alliance链接有关少数派参与计划的研究。进化，造山带的生长，俯冲通量，岩浆过程和时标）以及低温地球化学（例如，古气候重建，矿石沉积的形成，环境污染物的命运和运输）以及地球生物学，地球生物学，地球生物学，Planetary Gerensic和核心地球学。该研究将涉及对广泛的放射原（ND，PB，HF，TH，U）和非传统稳定同位素系统的分析，包括在开发和应用相对早期阶段，例如基于溶液的MO，AG，235U/235U/238U“稳定”同位素系统；以及通过LA-MC-ICP-MS的原位U-PB和U-th Date（碳酸盐）和SR，MG和S同位素。因此，对拟议仪器的获取将有助于进一步建立这些同位素系统和技术作为有用的地球化学工具，可以在社区范围内使用，并应用于广泛的未来科学研究。这项奖项反映了NSF的法定任务，并通过该基金会的知识优点和广泛的影响来评估NSF的法定任务，并被认为是值得的支持。