Acquisition of a single-collector, magnetic-sector ICP-MS for research in U-series and (U-Th)/He chronometry at the Berkeley Geochronology Center

伯克利地质年代学中心购买单接收器磁扇区 ICP-MS，用于 U 系列和 (U-Th)/He 测时研究

• 批准号: 0930054
• 负责人: Warren Sharp
• 金额: $ 48.2万
• 依托单位: Berkeley Geochronology Center
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-09-01 至 2011-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0930054&HistoricalAwards=false
• 关键词: Acquisition; single; collector; magnetic; sector

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5). Funds will be used to acquire a single-collector, magnetic-sector, inductively coupled plasma mass spectrometer (ICP-MS) for the Berkeley Geochronology Center (BGC). The instrument will provide enhanced analytical capabilities and increased capacity for research and training programs in uranium-series and (U-Th)/He radio-isotopic dating. Many fundamental questions in the Earth sciences require precise and accurate radio-isotopic dating of natural events and processes. For example, uranium-series and (U-Th)/He dating are at the core of ongoing NSF-supported research at BGC in: (1) seismic histories and slip rates of active faults, (2) past climate transitions, (3) development of pre-contact Pacific cultures and ensuing environmental effects, (4) landscape evolution, and (5) chemical weathering processes. The new ICP-MS will supplement a thermal ionization mass spectrometer acquired by BGC in 1997 to provide higher sensitivity and greater throughput for uranium-series analyses and new capabilities for measuring small samples of 238U, 232Th, and 146Sm for BGC?s recently established Noble Gas Thermochronology Lab. Through interdisciplinary collaborations between BGC scientists and other researchers in the Earth sciences and related fields, the ICP-MS will help to establish the timing of geologic events and the rates of natural processes that have affected Earth?s surface, its natural resources, hazards, and life upon it. This research will help clarify topics of vital societal relevance and widespread public interest. The ICP-MS will be highly accessible to graduate students and post-docs, thereby playing an essential role in providing state-of-the-art training in innovative dating techniques to early-career scientists.

该奖项根据 2009 年美国复苏和再投资法案（公法 111-5）提供资金。 资金将用于为伯克利地质年代学中心 (BGC) 购买一台单收集器、磁扇区、电感耦合等离子体质谱仪 (ICP-MS)。该仪器将为铀系和(U-Th)/He放射性同位素测年领域的研究和培训项目提供增强的分析能力和能力。地球科学中的许多基本问题需要对自然事件和过程进行精确的放射性同位素测年。例如，铀系和 (U-Th)/He 定年是 BGC 正在进行的 NSF 支持的研究的核心：(1) 活动断层的地震历史和滑移率，(2) 过去的气候转变，(3) ）接触前太平洋文化的发展和随之而来的环境影响，（4）景观演变，以及（5）化学风化过程。新的 ICP-MS 将补充 BGC 于 1997 年购买的热电离质谱仪，为铀系分析提供更高的灵敏度和更大的通量，并为 BGC 最近成立的 Noble 测量 238U、232Th 和 146Sm 的小样品提供新功能。气体热年代学实验室。通过 BGC 科学家和地球科学及相关领域的其他研究人员之间的跨学科合作，ICP-MS 将有助于确定影响地球表面、自然资源、灾害、地质事件的时间和自然过程的速率。和其上的生命。这项研究将有助于澄清具有重要社会意义和广泛公共利益的主题。 ICP-MS 将为研究生和博士后提供便利，从而在为早期职业科学家提供创新约会技术的最先进培训方面发挥重要作用。