Collaborative Research: Equipment: Acquisition of a Confocal Micro-Raman Spectroscopy System at the University of Massachusetts and Amherst College

合作研究：设备：在马萨诸塞大学和阿默斯特学院购买共焦显微拉曼光谱系统

• 批准号: 2225643
• 负责人: Victor Guevara
• 金额: $ 2.07万
• 依托单位: Amherst College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-09-01 至 2024-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2225643&HistoricalAwards=false
• 关键词: Collaborative; Research; Equipment; Acquisition; Confocal

This award will support the acquisition of a confocal Raman spectroscopy system for research and teaching at the University of Massachusetts, Amherst College, and Five-college community. Raman spectroscopy involves the measurement of the slight energy shifts that result when a laser is focused on a mineral or fluid target sample. The magnitude and intensity of these energy shifts contain information about the identity, composition, or distortion of the target sample. The new Raman System – which will be housed at the University of Massachusetts - will be used by faculty, students, and researchers to identify and characterize minerals and fluids in rocks. Of particular interest are extremely small minerals and fluid “bubbles” that have been trapped in larger mineral grains. These tiny mineral and fluid inclusions can be difficult or impossible to identify by other techniques, and can be used to constrain the origin and evolution of the host rocks, in turn providing insight into large-scale Earth processes. The Raman system will aid researchers at University of Massachusetts and Amherst College in investigating: the evolution of mountain belts, the origins of critical mineral deposits, how magma is generated under volcanoes and where in the crust this magma is stored, and the development of new techniques to date rocks. The new system will also be incorporated into undergraduate and graduate classes, providing students with hands-on research and data-analysis experience. The Raman system will also serve as a component of our outreach activities, allowing faculty and students to hold demonstrations that showcase mineral identification and material characterization for K-12 students and other members of the surrounding communities. This acquisition of the Raman System is motivated by three immediate research avenues and one development project: (1) identification of mineral inclusions and inclusion assemblages in metamorphic porphyroblasts; (2) characterization of metamorphic pressures (and temperatures) using elastic thermobarometry; (3) quantification of CO2 in igneous melt inclusions; and (4) development of alpha-damage in zircon thermochronometer. The first three projects will contribute critical data and open new research avenues for active (funded) research projects. The development project may provide a new high-temperature thermochronometer to complement 40Ar/39Ar based systems. The Raman system will also be available for a wide range of research projects from faculty and students in the Five-College community. The new system will provide efficient mineral identification down to small grain/spot sizes (ca. 1 micrometer). It can be used to identify mineral inclusions even when such inclusions are not exposed at the surface of the host mineral. It is one of the few techniques for identification and quantification of volatile species (in-situ) in vapor bubbles within melt inclusions. Recently, Raman spectroscopy has been used to quantify the stress state in mineral lattices, which has given rise to rapidly expanding Raman barometry applications. For the research applications (above) and for many others, Raman spectroscopy provides data that cannot be obtained by other means. The new Raman spectroscopy system will also have a significant impact on teaching and student research at UMass, Amherst College, and in the Five College community. The PIs will develop Raman-based learning activities into their undergraduate and graduate Mineralogy and Petrology courses. Because of the ease of training and use, and our large archive of research samples, we suspect the Raman system may be particularly appropriate for involving undergraduate students in active, high-impact research projects as a precursor to senior theses.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.

该奖项将支持收购马萨诸塞大学，阿默斯特学院和五大学社区的研究和教学的共焦拉曼光谱系统。拉曼光谱涉及测量激光集中在矿物或流体靶样品上时产生的轻微能量移位。这些能量转移的大小和强度包含有关目标样本的身份，组成或失真的信息。新的拉曼系统（将在马萨诸塞大学安置）将由教师，学生和研究人员使用，以识别和表征岩石中的矿物质和液体。特别值得关注的是极小的矿物质和流体“气泡”，这些矿物质被困在较大的矿物质中。这些微小的矿物质和流体夹杂物可能难以或无法通过其他技术识别，并且可以用来限制宿主岩石的起源和演变，从而洞悉大规模的地球过程。拉曼系统将帮助马萨诸塞大学和阿默斯特学院的研究人员进行调查：山带的发展，关键矿物质的起源，在火山下如何产生岩浆以及在地壳中存储岩浆的位置，以及在岩石上的发展。新系统还将纳入本科和研究生班，为学生提供动手研究和数据分析经验。拉曼系统还将作为我们宣传活动的组成部分，使教师和学生能够举办示威活动，以展示矿物质识别和为K-12学生和周围社区的其他成员展示的材料表征。对拉曼系统的收购是由三个直接研究途径和一个开发项目激励的：（1）识别变质卟啉细胞中的矿物包含和包含组合； （2）使用弹性热计量法表征变质压（和温度）； （3）火成岩熔体夹杂物中的二氧化碳数量； （4）在锆石热量表中发展α-破坏。前三个项目将为活动（资助）研究项目提供关键数据和开放新的研究途径。该开发项目可以为完整的40AR/39AR系统提供新的高温热化学计。拉曼系统还将用于五大社区的教职员工和学生的广泛研究项目。新系统将提供有效的矿物识别，向小谷物/斑点尺寸（约1千分尺）。即使没有在宿主矿物的表面暴露于这种夹杂物的情况下，它也可以用来识别矿物质。它是在熔体夹杂物中识别和定量挥发性物种（原位）识别和定量的少数技术之一。最近，拉曼光谱法已用于量化矿物晶格中的应力状态，这导致了迅速扩展的拉曼气压应用。对于研究应用程序（上），对于许多其他研究应用程序，拉曼光谱法提供了无法通过其他方式获得的数据。新的拉曼光谱系统还将对UMass，Amherst学院以及五个大学社区的教学和学生研究产生重大影响。 PI将在其本科和研究生矿物学和岩石学课程中开发基于拉曼的学习活动。由于培训和使用的易用性以及我们的大量研究样本档案，我们怀疑拉曼系统可能特别适合使本科生从事积极的高级研究项目，作为高级论点的先兆。这一奖项反映了NSF的法定任务，并认为通过基金会的知识优点和广泛的crietia crietia crietia criperia criperia criperia rection the Supportiation the Awmentia奖。