Laboratory Technician Support: National sample preparation facility for broadening participation, research, and hands-on research training in cosmogenic nuclide studies

实验室技术人员支持：国家样品制备设施，用于扩大宇宙成因核素研究的参与、研究和实践研究培训

• 批准号: 1735676
• 负责人: Paul Bierman
• 金额: $ 54.22万
• 依托单位: University of Vermont & State Agricultural College
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-02-15 至 2024-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1735676&HistoricalAwards=false
• 关键词: Laboratory; Technician; Support; National; sample

This project transforms an established, state-of-the-art, high-throughput, geologic dating laboratory at the University of Vermont into a national facility open for use by the broader science community. It will provide both intellectual resources and a venue for consistent, reliable, high-quality, and safety-focused preparation of samples using a hands-on model that integrates research and research training. Over the past several decades, the use of these nuclides in Earth Science has increased rapidly; however, sample preparation remains tedious, difficult, and hazardous, requiring strong acids and complicated and expensive clean laboratory facilities and expertise that are not readily available. The approach of this facility is cost-effective because it relies on existing physical and intellectual infrastructure and builds on demonstrated research and research training successes. Working closely with experts, the facility staff will broaden participation and build long-term relationships by proactively engaging students, faculty, and administrators at both undergraduate institutions and graduate institutions serving communities underrepresented in STEM. The facility will use collaborative outreach activities including campus visits and a seed grant program to bring minority students and their faculty mentors to the laboratoryThis is a new approach aimed at broadening participation in the rapidly expanding field of cosmogenic isotope geoscience by opening a successful cosmogenic geochemistry laboratory to the broader community. Building upon tested sample-processing and training protocols, we will facilitate research and research training by increasing access to 10Be and 26Al sample preparation. Because of limited laboratory availability, the cosmogenic nuclide community has remained small. Providing a national sample preparation facility will catalyze the inclusion of new and different scientists, increasing the number and diversity of projects involving these isotopes - a catalyst for transformative research. Supporting a community facility for sample processing and research training has numerous different broader impacts. 1) It directly addresses a current bottleneck in cosmogenic nuclide studies: the extraction of 10Be and 26Al from rock, soil, and sediment that precedes isotopic measurement. 2) It broadens participation by providing open access to a state-of-the-art processing facility for the many students and faculty who do not have such a facility at their home institutions. 3) The outreach program, supported by the experience of Semken and Whittaker, goes directly to faculty and students at institutions serving minority communities and the seed grant program brings faculty/student teams from Historically Black Colleges and Universities as well as Tribal Colleges to the laboratory for meaningful collaboration and hands-on training. 4) Technician support will provide for research training in isotopic clean lab methods for students, researchers, faculty, and young investigators in a variety of geoscience disciplines through lab residencies, lab consultancies, a yearly training course for those wishing to adopt these methods or start a similar laboratory.

该项目将佛蒙特大学一个成熟的、最先进的、高通量的地质测年实验室改造成一个面向更广泛的科学界开放的国家设施。它将提供智力资源和场所，使用集成了研究和研究培训的动手模型，进行一致、可靠、高质量和以安全为重点的样品制备。在过去的几十年里，这些核素在地球科学中的使用迅速增加；然而，样品制备仍然是繁琐、困难和危险的，需要强酸、复杂和昂贵的清洁实验室设施和不易获得的专业知识。该设施的方法具有成本效益，因为它依赖于现有的物质和智力基础设施，并建立在已证明的研究和研究培训成功的基础上。该设施的工作人员将与专家密切合作，通过积极吸引本科院校和研究生院校的学生、教师和管理人员，为STEM中代表性不足的社区服务，扩大参与范围，建立长期关系。该设施将采用协作外展活动，包括校园参观和种子资助计划，将少数民族学生和他们的教师导师带到实验室。这是一种新的方法，旨在通过向更广泛的社区开放一个成功的宇宙形成地球化学实验室，扩大对快速发展的宇宙形成同位素地球科学领域的参与。在测试样品处理和培训协议的基础上，我们将通过增加10Be和26Al样品制备的机会来促进研究和研究培训。由于实验室可用性有限，宇宙核素群落仍然很小。提供一个国家样品制备设施将促进新的和不同的科学家的加入，增加涉及这些同位素的项目的数量和多样性-这是变革性研究的催化剂。支持社区设施进行样品处理和研究培训具有许多不同的更广泛的影响。1)它直接解决了目前宇宙核素研究的瓶颈：在同位素测量之前，从岩石、土壤和沉积物中提取10Be和26Al。2)它为许多学生和教师提供了最先进的加工设备，从而扩大了他们的参与范围，这些学生和教师在自己的学校没有这样的设备。3)外展项目由塞姆肯和惠特克的经验支持，直接面向服务于少数族裔社区的机构的教职员工和学生，种子资助项目将来自传统黑人学院和大学以及部落学院的教职员工和学生团队带到实验室，进行有意义的合作和实践培训。4)技术人员支持将通过实验室驻留、实验室咨询、为希望采用这些方法或建立类似实验室的人员提供年度培训课程，为各种地球科学学科的学生、研究人员、教师和年轻研究人员提供同位素清洁实验室方法的研究培训。

项目成果

Rapid southeastern Laurentide Ice Sheet thinning during the last deglaciation revealed by elevation profiles of in situ cosmogenic 10Be

• DOI: 10.1130/b36463.1
• 发表时间: 2022-12
• 期刊: GSA Bulletin
• 作者: Christopher T. Halsted;P. Bierman;J. Shakun;P. Davis;L. Corbett;M. Caffee;Taylor S. Hodgdon;J. Licciardi

The Northwestern Greenland Ice Sheet During The Early Pleistocene Was Similar To Today

更新世早期的格陵兰岛西北部冰盖与今天相似

• DOI: 10.1029/2019gl085176
• 发表时间: 2020
• 期刊: Geophysical Research Letters
• 影响因子: 5.2
• 作者: Christ, Andrew J.;Bierman, Paul R.;Knutz, Paul C.;Corbett, Lee B.;Fosdick, Julie C.;Thomas, Elizabeth K.;Cowling, Owen C.;Hidy, Alan J.;Caffee, Marc W.
• 通讯作者: Caffee, Marc W.

Meteoric 10Be as a tracer of subglacial processes and interglacial surface exposure in Greenland

• DOI: 10.1016/j.quascirev.2018.05.009
• 发表时间: 2018-07-01
• 期刊: QUATERNARY SCIENCE REVIEWS
• 影响因子: 4
• 作者: Graly, Joseph A.;Corbett, Lee B.;Neumann, Thomas A.
• 通讯作者: Neumann, Thomas A.

Landslides, hurricanes, and sediment sourcing impact basin-scale erosion estimates in Luquillo, Puerto Rico

• DOI: 10.1016/j.epsl.2021.116821
• 发表时间: 2021-03-08
• 期刊: EARTH AND PLANETARY SCIENCE LETTERS
• 影响因子: 5.3
• 作者: Grande, Alexandra;Schmidt, Amanda H.;Caffee, Marc W.
• 通讯作者: Caffee, Marc W.

Laurentide Ice Sheet persistence during Pleistocene interglacials

更新世间冰期期间劳伦太德冰盖的持续存在

• DOI: 10.1130/g50820.1
• 发表时间: 2023
• 期刊: Geology
• 影响因子: 5.8
• 作者: LeBlanc, Danielle E.;Shakun, Jeremy D.;Corbett, Lee B.;Bierman, Paul R.;Caffee, Marc W.;Hidy, Alan J.
• 通讯作者: Hidy, Alan J.