Replacement of a 23-year-old analytical system for continuing leading-edge stable isotope research on carbonate minerals

更换已有 23 年历史的分析系统，以继续进行碳酸盐矿物的前沿稳定同位素研究

• 批准号: RTI-2019-00292
• 负责人: Kim, SangTae
• 金额: $ 9.53万
• 依托单位: McMaster University
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=655579
• 关键词: Replacement; 23; year; old; analytical

Carbonates have been ubiquitous on the surface of the earth throughout its geological history. Stable isotope compositions of carbonate minerals, such as corals and speleothems, have been extensively used to unveil Earth's climate and environmental history because isotopic variations in carbonate minerals are controlled by changes in Earth's climate and environment. This proposal is for the replacement of a 23-year-old carbonate analysis system that allowed my stable isotope laboratory at McMaster University to provide a world-class analytical service for numerous internal and external researchers and HQP. Since this central analytical system to my research program is currently inoperative and irreparable, I am requesting urgent funds to acquire an automated analytical system for carbonate minerals that will enable us to retain and enhance our proven analytical ability for the measurement of carbon and oxygen isotope compositions of carbonate minerals. The requested analytical system will be coupled to our existing high-sensitivity gas-source stable isotope ratio mass spectrometer for high analytical precision and sample throughput, creating a value-added research infrastructure and environment. The goal of my NSERC-funded research program is to gain a thorough understanding of stable isotope systematics of carbonate minerals to develop new innovative geochemical tools for reconstructing Earth's climate and environmental history, as well as for probing biosignatures from extraterrestrial carbonates. The anticipated analytical capability and flexibility by acquiring the requested analytical system is not only essential for my research program, but also critical for training and recruitment of my HQP. It should be emphasized that, without the proposed analytical system, my ongoing and future research projects will be significantly delayed and proper training of HQP for a trained stable isotope geochemist in today's competitive job market cannot be provided. The knowledge generated from my research program using the requested analytical system will help researchers to better elucidate Earth's climate and environmental changes and provide key paleoclimate information in building accurate climate models. This will enable our society to better predict future climate variability and prepare appropriate government policies and regulations in a timely manner, ensuring social and economic benefits to our community.

在整个地质史上，碳酸盐在地球表面一直无处不在。 碳酸盐矿物质的稳定同位素组成，例如珊瑚和辣椒，已被广泛用于揭示地球的气候和环境史，因为碳酸盐矿物质的同位素变化受到地球气候和环境的变化的控制。 该建议是为了替代一个23岁的碳酸盐分析系统，该系统使我在麦克马斯特大学的稳定同位素实验室可以为众多内部和外部研究人员以及HQP提供世界一流的分析服务。 由于我的研究计划的中央分析系统目前是不起作用的且无法弥补的，因此我要求紧急资金获得碳酸盐矿物质的自动分析系统，以使我们能够保留和增强碳酸盐矿物质的碳和氧同位素成分的验证分析能力。 所请求的分析系统将与我们现有的高敏化气体源稳定同位素比质谱仪耦合，以进行高分析精度和样品吞吐量，从而创建增值的研究基础设施和环境。 我由NSERC资助的研究计划的目的是对碳酸盐矿物质的稳定同位素系统有透彻的了解，以开发新的创新地球化学工具，以重建地球的气候和环境历史，并探究来自外星碳酸盐的生物签名。 通过获得所需的分析系统，预期的分析能力和灵活性不仅对我的研究计划至关重要，而且对于培训和招募我的HQP也至关重要。 应该强调的是，如果没有拟议的分析系统，我正在进行的和未来的研究项目将大大延迟，并在当今的竞争激烈的就业市场中对训练有素的稳定同位素地球化学者对HQP进行适当的培训。 使用要求的分析系统从我的研究计划中产生的知识将帮助研究人员更好地阐明地球的气候和环境变化，并在建立准确的气候模型中提供关键的古气候信息。这将使我们的社会能够更好地预测未来的气候变化，并及时准备适当的政府政策和法规，从而确保对我们社区的社会和经济利益。