Laboratory Technician Support: Expanding the capacity for U-Pb geochronology at Princeton University

实验室技术人员支持：扩大普林斯顿大学 U-Pb 地质年代学能力

• 批准号: 1735512
• 负责人: Blair Schoene
• 金额: $ 74.91万
• 依托单位: Princeton 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: 2017-08-15 至 2024-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1735512&HistoricalAwards=false
• 关键词: Laboratory; Technician; Support; Expanding; capacity

An increase in understanding of how the Earth system operates in the present, and how it has evolved over billions of years, has led geoscientists to ask ever more precise questions about the timescales of geologic processes and the feedbacks between the ocean-atmosphere system, the biosphere, and the solid Earth. In order to provide quantitative answers to these questions, high-precision time constraints are required. Radiometric dating, or geochronology, is the most reliable way to provide such time constraints, and U-Pb geochronology is the most versatile method available. In order to meet the growing demand for geochronologic data in the Geosciences, this grant provides technical support for the U-Pb geochronology lab in the Department of Geosciences at Princeton University. This will create a new position that will: 1) increase the lab's capacity to take on new projects and host additional external scientists, including faculty and graduate and undergraduates students; 2) maintain efficient operations of clean lab facilities and analytical equipment; 3) streamline knowledge transfer between incoming and outgoing graduate students and postdocs; 4) provide a more reliable means for method development and improvement of precision and accuracy in U-Pb geochronology; 5) improve the integration of laboratory research into undergraduate and graduate curriculum; and 6) assist in outreach efforts to bring the lab?s science to a broader community. Given the unquenchable thirst in the Geosciences for geochronology, additional technical support will help the Princeton lab do its part to fill the deficit between user demand and capacity of existing geochronology labs.This grant provides much-needed technical support within the U-Pb geochronology laboratory in the Department of Geosciences at Princeton University. U-Pb geochronology is the most broadly applied system for determining the rates of geologic processes, and current demand for high-precision ID-TIMS U-Pb dates far outweighs the capacity of geochronology labs to generate them. The U-Pb lab at Princeton University, overseen by PI Schoene, wishes to expand its operations in order to host more outside users and devote more time to technique development that is required to place high-precision U-Pb dates into petrologic and/or stratigraphic context. Research themes within Schoene's lab range from understanding the evolution of continents and volcanic systems, calibrating rates of climate and biologic change in the deep past through ashbed zircon geochronology of stratigraphic sections, measuring the flux of flood basalt eruptions and understanding their environmental impact, and increasing the precision and accuracy of geochronology of Lunar samples. Each of these topics includes externally-funded collaborators from outside of Princeton University that send students to carry out the work. The new technical support will expand the ability of the lab to train both internal and external users and, in conjunction with upcoming facilities expansion, will provide new opportunities for integration of TIMS and laser ablation ICPMS U-Pb geochronology. These efforts serve both the need for assessing and increasing the accuracy of resulting ages and how to interpret them as chronometers of a wide range of geologic processes.

了解当前地球系统的运作方式以及它在数十亿年的发展方面的了解，使地球科学家提出了有关地质过程的时间表以及海洋 - 大气系统，生物圈和固体地球之间的反馈的越来越精确的问题。 为了为这些问题提供定量答案，需要高精度时间限制。辐射测定或年代学是提供此类时间限制的最可靠方法，而U-PB地质学是最通用的方法。 为了满足地球科学中对地貌数据的不断增长的需求，该赠款为普林斯顿大学地球科学系的U-PB地球人工学实验室提供了技术支持。 这将创建一个新的职位，将：1）提高实验室承担新项目的能力并拥有其他外部科学家，包括教职员工和研究生和本科生； 2）保持清洁实验室设施和分析设备的有效运营； 3）简化新来和外科研究生和博士后之间的知识转移； 4）提供了一种更可靠的方法来开发方法，并提高U-PB地质学的精度和准确性； 5）改善实验室研究与本科和研究生课程的整合； 6）协助推广工作，将实验室科学带入更广泛的社区。鉴于地质学的地球科学的渴望无法取消，额外的技术支持将帮助普林斯顿实验室（Princeton Lab）发挥其作用，以填补现有地球体学实验室的用户需求和能力之间的赤字。这项拨款在普林多州大学地球科学系的U-PB地球人工学实验室内提供了急需的技术支持。 U-PB年代学是确定地质过程速率的最广泛应用的系统，并且当前对高精度ID-TIMS U-PB日期的需求远远超过地球人工学实验室产生它们的能力。 Pi Schoene监督的普林斯顿大学的U-PB实验室希望扩大其运营，以托管更多的外部用户，并将更多的时间用于将高精度U-PB日期放置在岩石学和/或地层环境中所需的技术开发。 Schoene实验室内的研究主题范围从了解大陆和火山系统的演变，校准过去的气候和生物学变化速率到地层剖面的灰烬锆石锆石对数量，测量洪水盆地盆地爆发的范围以及了解其环境的影响，并提高其lunar samples的准确性和准确性。 这些主题中的每一个都包括来自普林斯顿大学以外的外部资助的合作者，这些合作者派学生从事这项工作。新的技术支持将扩大实验室培训内部和外部用户的能力，并结合即将到来的设施扩展，将为TIMS和激光消融ICPMS ICPMS U-PB地球人工学提供新的机会。这些努力既需要评估和提高产生的年龄的准确性，又是如何将其解释为各种地质过程的天文序列。

项目成果

Tracing widespread Early Miocene ignimbrite eruptions and petrogenesis at the onset of the Carpathian-Pannonian Region silicic volcanism

追踪喀尔巴阡-潘诺尼亚地区硅质火山活动开始时广泛的早中新世冰凝灰岩喷发和岩石成因

• DOI: 10.1016/j.gr.2022.12.015
• 发表时间: 2023
• 期刊: Gondwana Research
• 影响因子: 6.1
• 作者: Brlek, Mihovil;Richard Tapster, Simon;Schindlbeck-Belo, Julie;Gaynor, Sean P.;Kutterolf, Steffen;Hauff, Folkmar;Georgiev, Svetoslav V.;Trinajstić, Nina;Šuica, Sanja;Brčić, Vlatko
• 通讯作者: Brčić, Vlatko

U–Pb ID-TIMS geochronology using ATONA amplifiers

• DOI: 10.1039/d0ja00135j
• 发表时间: 2020-06
• 期刊: Journal of Analytical Atomic Spectrometry
• 影响因子: 3.4
• 作者: D. Szymanowski;B. Schoene

Genesis of the Questa Mo Porphyry Deposit and Nearby Polymetallic Mineralization, New Mexico, USA

• DOI: 10.5382/econgeo.5011
• 发表时间: 2023-03
• 期刊: Economic Geology
• 影响因子: 5.8
• 作者: S. Gaynor;J. Rosera;D. Coleman

Evaluating the Potential of Rhyolitic Glass as a Lithium Source for Brine Deposits

评估流纹质玻璃作为卤水矿床锂源的潜力

• DOI: 10.5382/econgeo.4866
• 发表时间: 2022
• 期刊: Economic Geology
• 影响因子: 5.8
• 作者: Ellis, B. S.;Szymanowski, D.;Harris, C.;Tollan, P.M.E.;Neukampf, J.;Guillong, M.;Cortes-Calderon, E. A.;Bachmann, O.
• 通讯作者: Bachmann, O.

Constraining the timescales of mafic magmatism of the Central Karoo Large Igneous Province using high precision U-Pb zircon geochronology

利用高精度 U-Pb 锆石地质年代学约束中央卡鲁大火成岩省镁铁质岩浆作用的时间尺度

• DOI: 10.25131/sajg.125.0009
• 发表时间: 2022
• 期刊: South African Journal of Geology
• 影响因子: 1.8
• 作者: Muedi, T.;MacLennan, S.;Szymanowski, D.;Schoene, B.;Ramezani, J.;Oalmann, J.;Linol, B.
• 通讯作者: Linol, B.