Community Facility Support: Northeast National Ion Microprobe Facility (NENIMF): 2021-2024

社区设施支持：东北国家离子微探针设施 (NENIMF)：2021-2024

• 批准号: 2128822
• 负责人: Glenn Gaetani
• 金额: $ 119.7万
• 依托单位: Woods Hole Oceanographic Institution
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-08-15 至 2024-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2128822&HistoricalAwards=false
• 关键词: Community; Facility; Support; Northeast; National

Secondary Ion Mass Spectrometry (SIMS) is a powerful micro-analytical technique for determining the elemental and isotopic compositions of solid materials that has broad applications to earth, ocean, and planetary sciences. This grant supports the continued operation of the Northeast National Ion Microprobe Facility (NENIMF) as a National SIMS Facility serving the geoscience community. The principal strengths of SIMS relative to other micro-analytical techniques are its high spatial resolution and the capability for high-precision measurements of both concentration and isotopic composition of light elements such as hydrogen, lithium, boron, carbon, nitrogen, and oxygen. The analytical capabilities and expertise of the NENIMF are focused in two areas: determination of magmatic volatiles in silicate glasses and analysis of biogenic carbonates as records of climate change and its impacts on marine organisms, making the NENIMF a unique interdisciplinary resource for the geosciences community to investigate such societally relevant issues as volcanic hazards and climate change.The NENIMF is equipped with two Cameca SIMS instruments: an IMS 1280 and an IMS 3f. The IMS 1280 is a double focusing mass spectrometer with a large radius magnetic sector (585 mm), and ion optics optimized to attain a mass resolving power of 6,000 without significant loss of secondary ion intensity. The IMS 3f is a double focusing mass spectrometer with a small radius magnetic sector that has been used for a wide spectrum of geochemical studies. The combination of these two instruments and the technical and scientific expertise of the NENIMF provides the geoscience community with a unique resource, that has minimal overlap with the other National SIMS Facilities. In addition to our areas of specialization, NENIMF users have taken advantage of the Cameca IMS 1280 to work on a range of topics that include B isotopes in MORB glasses and subduction zone minerals, Zr in rutile geospeedometry, Ti diffusion in quartz, and U-Th-Pb dating of monazite and zircon. New analytical protocols developed at the NENIMF over the past few years include measuring H2O concentration and D/H in dacite and rhyolite glasses, analysis of hydrogen and halogens in nominally anhydrous minerals, analysis of bromine and nitrogen in volcanic glasses, and analysis of trace metals in sulfide minerals from hydrothermal vents. Support for the NENIMF meets the NSF Broader Impacts criteria in several different ways. Discovery and understanding are advanced while promoting teaching, training, and learning and participation of underrepresented groups is broadened through the involvement of undergraduates, graduate students, and postdocs. WHOI’s Undergraduate Summer Student Fellows, Postdoctoral Scholars, and WHOI/MIT Joint Program graduate students are specifically targeted for involvement in research projects with NENIMF personnel and WHOI faculty in which they are intimately involved with SIMS techniques. Involvement of young scientists in SIMS-based research is encouraged through workshops and short-courses. Infrastructure for research and education are enhanced through making both our existing analytical platforms, and those to be developed by the NENIMF personnel during the funding period, available to scientists and students from diverse disciplines. Research results are disseminated broadly to enhance scientific and technological understanding through an average of 14 publications per year that result from use of the facility.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.

次级离子质谱法（SIMS）是一种强大的微分析技术，用于确定固体材料的元素和同位素组成，对地球，海洋和行星科学具有广泛应用。该赠款支持东北国家离子微探针设施（Nenimf）的继续运营，作为为地球科学社区服务的国家模拟机构。 SIMS相对于其他微型分析技术的主要优势是其高空间分辨率，以及对光浓度和同位素组成的高精度测量能力，例如氢，锂，锂，硼，碳，碳，氮和氧气。 Nenimf的分析能力和专业知识集中在两个领域：确定硅胶眼镜中的岩浆挥发物和生物碳酸盐的分析，作为气候变化的记录及其对海洋生物体的影响，使Nenimf成为奇异的跨学科资源，使对社会上的隔离型和隔离型杂货不动，并构成隔离型杂货，并将其等同于自发性的变化。乐器：IMS 1280和IMS 3F。 IMS 1280是具有较大半径磁性扇形（585 mm）的双聚焦质谱仪，并且优化了离子光学元件，可达到6,000的质量分辨能力，而没有明显的次级离子强度损失。 IMS 3F是一个双聚焦质谱仪，具有小半径磁性扇形，已用于广泛的地球化学研究。这两种仪器的结合以及Nenimf的技术和科学专业知识为地球科学界提供了独特的资源，与其他国家模拟人生的设施的重叠最小。除我们的专业领域外，Nenimf用户还利用了Cameca IMS 1280的优势来处理一系列主题，其中包括MORB眼镜和俯冲带中的B同位素矿物质，金黄色地质测量法中的ZR，Ti在Quartz中的扩散以及Monazite和Monazite和Zircon的U-Th-PB评估。在过去的几年中，Nenimf开发的新分析方案包括测量H2O浓度和D/H中的dacite和流纹岩眼镜，名义上无水矿物质中的氢和卤素的分析，对火山玻璃中溴和氮的分析，以及对硫化物矿物质矿物质矿物质含量金属的痕量分析。对Nenimf的支持以几种不同的方式符合NSF的更广泛影响标准。通过本科生，研究生和博士后的参与来扩展，发现和理解是在促进代表性不足的群体的教学，培训和学习和参与的同时进行的。 Whoi的本科夏季学生研究员，博士后学者和WHOI/MIT联合计划研究生专门针对与Nenimf人员和WHOI教职员工一起参与研究项目，与他们密切参与SIMS技术。通过研讨会和短幕鼓励年轻科学家参与基于模拟的研究。通过建立我们现有的分析平台和Nenimf人员在资金期间开发的研究和教育基础设施，可以提高研究和教育的基础设施，从而提供了来自潜水员学科的科学家和学生。研究结果被广泛传播，以通过使用该设施的平均每年14个出版物来增强科学和技术理解。该奖项反映了NSF的法定任务，并被认为是通过基金会的知识分子和更广泛影响的评估审查标准来通过评估来获得的支持。

项目成果

Pre-eruptive water content and volatile degassing processes in the southern Okinawa Trough magma: Implications for subduction zone water recycling and magmatic contributions to hydrothermal systems

• DOI: 10.1016/j.lithos.2023.107145
• 发表时间: 2023-03
• 期刊: Lithos
• 影响因子: 3.5
• 作者: Yuxiang Zhang;G. Gaetani;B. Monteleone;Z. Zeng;Zuxing Chen;Xuebo Yin;Xiaoyuan Wang;Shuai Chen

Accuracy and Reproducibility of Coral Sr/Ca SIMS Timeseries in Modern and Fossil Corals

• DOI: 10.1029/2021gc010068
• 发表时间: 2021-08
• 期刊: Geochemistry
• 影响因子: 3.7
• 作者: H. Sayani;K. Cobb;B. Monteleone;Heather Bridges

High water content of arc magmas recorded in cumulates from subduction zone lower crust

• DOI: 10.1038/s41561-022-00947-w
• 发表时间: 2022-05
• 期刊: Nature Geoscience
• 影响因子: 18.3
• 作者: B. Urann;V. Le Roux;O. Jagoutz;O. Müntener;M. Behn;E. Chin

Carbon stable isotope constraints on CO2 degassing models of ridge, hotspot, and arc magmas

碳稳定同位素对山脊、热点和弧岩浆二氧化碳脱气模型的约束

• DOI: 10.1016/j.chemgeo.2022.120962
• 发表时间: 2022
• 期刊: Chemical geology
• 影响因子: 3.9
• 作者: Aubaud, C.