Sulfur isotope fractionations in Earth evolution

地球演化中的硫同位素分馏

• 批准号: DP140103393
• 负责人: Prof Trevor Ireland
• 金额: $ 32.75万
• 依托单位: The Australian National University
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2014
• 资助国家: 澳大利亚
• 起止时间: 2014-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP140103393
• 关键词: Sulfur; isotope; fractionations; Earth; evolution

Sulfur isotopes provide a unique window into the major events in Earth's history. Techniques have been developed for measuring all four sulfur isotopes, including the low abundance sulfur-36 (0.02 per cent) to 0.2 per mil, in situ for sulfides. This project will make innovative technological developments to the counting system to extend this capability to the lower count rates obtained from sulfates. This will open windows for research on processes occurring in the early solar system, atmospheric and hydrologic conditions in the Archean, ore-forming processes, and evolution of life on Earth.

硫同位素为我们提供了一个了解地球历史上重大事件的独特窗口。 已经开发出了测量所有四种硫同位素的技术，包括硫化物的低丰度硫-36（0.02%）至0.2%。该项目将对计数系统进行创新技术开发，以将这种能力扩展到从硫酸盐中获得的较低计数率。这将为研究早期太阳系中发生的过程、太古代的大气和水文条件、成矿过程和地球上生命的演化打开窗口。