Laboratory Technician Support: Enhanced Community Access to High-Precision U-Pb Geochronology Across the Earth Sciences

实验室技术人员支持：增强社区在地球科学领域获取高精度 U-Pb 地质年代学的能力

• 批准号: 1735889
• 负责人: Mark Schmitz
• 金额: $ 67.28万
• 依托单位: Boise State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-09-01 至 2023-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1735889&HistoricalAwards=false
• 关键词: Laboratory; Technician; Support; Enhanced; Community

The science of geochronology provides the numerical measurement of geological time, establishes the age of events in Earth history, and constrains the rates and durations of geological processes that form and shape the Earth?s surface and interior. Because of its key role in establishing correlation, causality, and rates, geochronology impacts a broad spectrum of outstanding problems in the Earth sciences, from the evolution and extinction of life to plate tectonics and the uplift of mountain belts, and from igneous petrology and volcanic hazards to geologic mapping and the search for mineral and energy resources. Advances in analytical methods and technology now allow geochronological measurements at unprecedented resolution and in greater quantities to address these challenges. This grant for laboratory technician support in the Isotope Geology Laboratory at Boise State University will expand its human resource infrastructure to maximize the effective and efficient delivery of high-precision U-Pb geochronology to a large cross-section of the national geoscience community.The Isotope Geology Laboratory at Boise State University has a decade of experience with state-of-the-art clean laboratory and thermal ionization mass spectrometry methods and technologies to measure the U-Pb isotope ratios and ages of Earth materials at the finest possible temporal resolution. Built and maintained by a portfolio of federal, state, University, and industry support, the laboratory has a proven track record of providing high-precision U-Pb geochronometric data and geochronological expertise across a broad user base. The new laboratory technical and applications scientist will leverage our existing state-of-the-art instrumentation, personnel, and cost recovery structure into a community-facing laboratory that can meet the increasing demand for high-resolution dating of Earth systems and processes. These resources will broaden community access, provide education, outreach, and training, and foster innovative research and development. Beyond the increased provision of the highest quality U-Pb zircon ages to diverse users, the anticipated scientific impacts of this project will include technical enhancements in ion formation and detection in the thermal ionization mass spectrometer, improved interpretation of U-Pb zircon ages through the petrochronological integration of in situ textural and geochemical analysis with micro-sampled isotope dilution strategies, broadened use of tandem in situ/isotope dilution analysis on the same crystals for refined detrital zircon provenance and maximum depositional age estimates, and new strategies for the statistical integration of radioisotopic dates, astrochronologies, and other systems proxy data into age models essential to addressing the most demanding problems of Earth systems science.

地质学科学提供了地质时代的数值测量，建立了地球历史上事件的年龄，并限制了形成和塑造地球表面和内部的地质过程的速度和持续时间。由于其在建立相关性，因果关系和速率中的关键作用，地球人数会影响地球科学中的广泛问题，从生命的演变和灭绝到板块构造以及山地腰带的隆起，以及从火山岩石学和火山质量危害到地球贴图以及地球映射以及寻找矿产和矿产和矿产和矿产和矿产和矿产和能源。现在，分析方法和技术的进步允许以前所未有的分辨率和更大数量的解决这些挑战时的测量测量。博伊斯州立大学同位素地质实验室中的实验技术人员支持赠款将扩大其人力资源基础设施，以最大程度地提高高精度U-PB地球人工学的有效和有效地交付到国家地球科学社区的大型横截面。 U-PB同位素比和地球材料的年龄以最好的时间分辨率。该实验室由联邦，州，大学和行业支持的投资组合建造和维护，具有良好的记录，可在广泛的用户群中提供高精度的U-PB地球工程学数据和地质专业知识。新的实验室技术和应用科学家将利用我们现有的最先进的工具，人员和成本恢复结构进入社区面向社区的实验室，该实验室可以满足对地球系统和过程高分辨率约会的日益增长的需求。这些资源将扩大社区的访问，提供教育，推广和培训，并促进创新的研发。除了增加最高质量的U-PB锆石年龄为多样化的用户提供外，该项目的预期科学影响还包括在热电离质谱仪中的离子形成和检测方面的技术增强，改善了通过对现场和地球范围的策略进行策略，对U-pb锆石之间的解释进行了改善对相同晶体的原位/同位素稀释分析，用于精制的碎屑锆石出处和最大沉积年龄估计，以及放射性分析日期，天体保量和其他系统代理数据统计整合到地球系统科学问题最苛刻问题至关重要的年龄模型的新策略。

项目成果

A bulk annealing and dissolution-based zircon concentration method for mafic rocks

• DOI: 10.1016/j.chemgeo.2022.120817
• 发表时间: 2022-03
• 期刊: Chemical Geology
• 影响因子: 3.9
• 作者: A. L. Oliveira;M. Schmitz;C. Wall;M. Hollanda

Electrochemically induced amorphous-to-rock-salt phase transformation in niobium oxide electrode for Li-ion batteries

• DOI: 10.1038/s41563-022-01242-0
• 发表时间: 2022-05-02
• 期刊: NATURE MATERIALS
• 影响因子: 41.2
• 作者: Barnes, Pete;Zuo, Yunxing;Xiong, Hui
• 通讯作者: Xiong, Hui

Apatites for destruction: Reference apatites from Morocco and Brazil for U-Pb petrochronology and Nd and Sr isotope geochemistry

• DOI: 10.1016/j.chemgeo.2021.120689
• 发表时间: 2022-02-20
• 期刊: CHEMICAL GEOLOGY
• 影响因子: 3.9
• 作者: Apen, Francisco E.;Wall, Corey J.;Seward, Gareth G. E.
• 通讯作者: Seward, Gareth G. E.

A link between rift-related volcanism and end-Ediacaran extinction? Integrated chemostratigraphy, biostratigraphy, and U-Pb geochronology from Sonora, Mexico

• DOI: 10.1130/g47972.1
• 发表时间: 2021-02-01
• 期刊: GEOLOGY
• 影响因子: 5.8
• 作者: Hodgin, Eben B.;Nelson, Lyle L.;Smith, Emily F.
• 通讯作者: Smith, Emily F.

Integrating zircon trace-element geochemistry and high-precision U-Pb zircon geochronology to resolve the timing and petrogenesis of the late Ediacaran–Cambrian Wichita igneous province, Southern Oklahoma Aulacogen, USA

整合锆石微量元素地球化学和高精度 U-Pb 锆石地质年代学，解析美国俄克拉荷马州南部奥拉肯晚期埃迪卡拉纪 — 寒武纪威奇托火成岩省的时代和岩石成因

• DOI: 10.1130/g48140.1
• 发表时间: 2020
• 期刊: Geology
• 影响因子: 5.8
• 作者: Wall, Corey J.;Hanson, Richard E.;Schmitz, Mark;Price, Jonathan D.;Donovan, R. Nowell;Boro, Joseph R.;Eschberger, Amy M.;Toews, Chelsea E.
• 通讯作者: Toews, Chelsea E.