Acquisition of a laser-ablation system for trace element mapping and large-N geochronology by inductively-coupled-plasma mass spectrometry (ICP-MS)

通过电感耦合等离子体质谱 (ICP-MS) 获取用于痕量元素测绘和大氮地质年代学的激光烧蚀系统

• 批准号: 1831766
• 负责人: Daniel Viete
• 金额: $ 21.65万
• 依托单位: Johns Hopkins University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-11-01 至 2019-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1831766&HistoricalAwards=false
• 关键词: Acquisition; laser; ablation; system; trace

This grant provides funding for a laser to connect to an existing device at Johns Hopkins University that measures chemical compositions of samples. The laser system will support creative Geosciences research on tiny samples that contain information about the formation of the Earth. The laser will help to start new research partnerships among early-career Geoscientists from universities in the Baltimore area. This research will support numerous graduate and undergraduate students. The laser system will be included in undergraduate courses at many Baltimore-area universities. It will bring advanced technology and ideas to young minds and broaden their exposure to modern research and instrumentation in the geosciences.A laser ablation (LA) system is requested to link to an existing triple-quadrupole inductively-coupled-plasma mass spectrometer (ICP-MS) at Johns Hopkins University. The LA system will enable high-spatial-resolution, in situ analysis of geomaterials. The Hopkins LA-ICP-MS Facility will focus on fine-scale trace element mapping, and large-N U/Pb geochronology. It will also offer capacity for very sensitive trace and rare earth element analysis of solid samples. An updated Hopkins LA-ICP-MS Facility is important for the research programs of multiple early-career geoscientists based in the Baltimore area, and will serve the broader Mid-Atlantic region. Existing projects proposed to utilize the Hopkins LA-ICP-MS Facility span multiple disciplines, from the biogeosciences to meteoritics, petrology, plate tectonics and archaeology. The Hopkins LA-ICP-MS Facility will offer graduate and undergraduate research students valuable training in modern geosciences research and will be incorporated into undergraduate courses at multiple universities in the Baltimore area.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.

该赠款为激光与约翰·霍普金斯大学现有设备连接起来的赠款提供了资金，该设备可以测量样品的化学成分。激光系统将支持有关包含有关地球形成的信息的微小样本的创造性地球科学研究。激光将有助于在巴尔的摩地区大学的早期培养基地球科学家中建立新的研究合作伙伴关系。这项研究将支持众多研究生和本科生。激光系统将包括在许多巴尔的摩地区大学的本科课程中。它将为年轻人带来先进的技术和想法，并扩大他们在地球科学中现代研究和仪器的接触。激光消融（LA）系统被要求链接到约翰斯霍普金斯大学的现有三季度Quadrupole电感耦合 - 乘积质量光谱仪（ICP-MS）。洛杉矶系统将实现高空间分辨率，原位分析地材料。霍普金斯LA-ICP-MS设施将集中于细尺度的微量元素映射和大N U/PB地质学。它还将为实心样品的非常敏感的痕迹和稀土元素分析提供能力。更新的Hopkins LA-ICP-MS设施对于位于巴尔的摩地区的多个早期职业地球科学家的研究计划很重要，并将为更广泛的中大西洋地区提供服务。提议利用霍普金斯LA-ICP-MS设施的现有项目涵盖了多个学科，从生物学家到气象，岩石学，板块构造和考古学。霍普金斯LA-ICP-MS设施将为现代地球科学研究的研究生和本科研究学生提供宝贵的培训，并将在巴尔的摩地区的多个大学的本科课程中纳入本科课程。该奖项反映了NSF的法定任务，并通过该基金会的知识优点和广泛的影响来评估NSF的法定任务，并通过评估值得进行评估。

项目成果

Garnet zoning patterns record multiple processes of chemical transfer during subduction

• DOI: 10.1016/j.epsl.2024.118634
• 发表时间: 2024-04
• 期刊: Earth and Planetary Science Letters
• 影响因子: 5.3
• 作者: Freya R. George;D. Viete;Janaína Ávila;G. Seward;George L. Guice;Mark B. Allen;Michael J. Harrower

A c. 1900 Ma Tethyan-type ophiolite in the Penokean Orogen, Pembine, Wisconsin (USA): Insights from the volcanic stratigraphy

A c.

• DOI: 10.1016/j.precamres.2023.107223
• 发表时间: 2023
• 期刊: Precambrian Research
• 影响因子: 3.8
• 作者: Guice, George L.;Viete, Daniel R.;Holder, Robert M.;Roy, Supratik
• 通讯作者: Roy, Supratik