MRI: Acquisition of a Thermal Ionization Mass Spectrometer to Support National Multi-User Access to High-Precision U-Th-Pb Geochronology

MRI：购买热电离质谱仪以支持国家多用户获取高精度 U-Th-Pb 地质年代学

• 批准号: 1337887
• 负责人: Mark Schmitz
• 金额: $ 74.4万
• 依托单位: Boise State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-09-01 至 2015-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1337887&HistoricalAwards=false
• 关键词: MRI; Acquisition; Thermal; Ionization; Mass

This award from the Major Research Instrumentation Program (MRI) provides funds to acquire a Multi-Collector Thermal Ionization Mass Spectrometer (TIMS) for the Isotope Geology Laboratory (IGL) of the Department of Geosciences, Boise State University, as the next step in creating a national multi-user facility for high-precision geochronology. The IGL is dedicated to the calibration of Earth history and quantification of the rates of geological processes through the application of high-precision U-Th-Pb geochronology and radiogenic isotope tracers. Since its creation, the IGL has established itself as a critical node in the isotope geochronological community through its efforts with the EARTHTIME Initiative for the Calibration of Earth History. The requested instrument will complement the existing TIMS and LA-ICPMS equipment in the Isotope Geology Laboratory, and will be specifically tasked with expanding community access to high-precision U-Th-Pb geochronology. The instrumentation will be configured with the latest in ion-counting and high-ohmic Faraday amplifier technology, to continue innovations in the precise and accurate analysis of very small amounts of parent and daughter isotopes. Expansion of the analytical infrastructure of the IGL will help to meet the burgeoning geochronology needs of the national user community, for state-of-the-art applications including: high-precision, high-accuracy U-Pb dating for chronostratigraphy, paleobiology and paleoclimatology; tandem in situ (ion microprobe or LA-ICPMS) and chemical abrasion TIMS analysis of detrital zircons for robust maximum age constraints; coupling of in situ geochemical and isotopic analyses to high-precision analyses of the same grains to explore silicic volcanic and plutonic igneous processes; and the characterization and calibration of mineral standard materials for in situ geochronology and geochemistry. Expanding the instrumentation base of the Isotope Geology Laboratory is a sound investment capitalizing on existing infrastructure, a larger laboratory in the newly constructed Environmental Research Building, an exceptional personnel base of technical support, and a working and successful cost recovery management plan. Inreach to the scientific community will continue to center around student and early-career scientist training and multi-disciplinary integration. The Isotope Geology Laboratory will also continue to host a portfolio of in-person and web-based education and outreach activities including research-based science lessons to middle and high school students and community members via informal science education center partners, and a series of web-based learning objects to teach the science of geochronology and Earth history.

重大研究仪器计划（MRI）的奖项提供了资金，以获取博伊西州立大学地球科学系的同位素地质实验室（IGL）的多层电离质谱仪（TIMS），这是为创建高确定地球素养的国家多用户设施的下一步。 IgL致力于通过应用高精度U-TH-PB地质学和放射性同位素示踪剂的应用来校准地球历史的校准和地质过程率的量化。自创建以来，IGL通过对地球历史校准的Earth Time倡议的努力来确立同位素群体学界的关键节点。所请求的仪器将补充同位素地质实验室中现有的TIMS和LA-ICPMS设备，并专门负责扩大社区访问高精度U-TH-PB地球人数的访问。该仪器将配置为最新的离子计数和高含量的Faraday放大器技术，以继续对非常少量的父母和女儿同位素进行精确和准确的分析。 IGL分析基础设施的扩展将有助于满足国家用户社区的新生人工学需求，包括：高精度，高准确性，高准确性的U-PB日期，用于年表，古代学，古生物学和古质量学；串联原位（离子微探针或LA-ICPMS）和碎屑锆石的化学磨损TIMS分析可靠的最大年龄限制；将原位地球化学和同位素分析与对相同晶粒的高精度分析的耦合，以探索硅化火山和岩石火成岩过程；以及用于原位地质学和地球化学的矿物标准材料的表征和校准。扩大同位素地质实验室的仪器基础是一项可利用现有基础设施的良好投资，这是新建的环境研究大楼中的较大实验室，技术支持的卓越人事基础，以及一项工作和成功的成本恢复管理计划。对科学界的Inreach将继续围绕学生和早期的科学家培训和多学科融合。同位素地质实验室还将通过非正式科学教育中心合作伙伴以及一系列基于Web的学习对象来教授地球人数和地球历史科学的一系列基于研究的科学课程，包括基于研究的科学课程，包括基于研究的科学课程，包括基于研究的科学课程，包括基于研究的科学课程。