Nanoscale repositories of the geological record of Earth and other planets

地球和其他行星地质记录的纳米级存储库

• 批准号: DP210101866
• 负责人: Prof Katy Evans
• 金额: $ 23.27万
• 依托单位: Curtin University
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2021
• 资助国家: 澳大利亚
• 起止时间: 2021-12-20 至 2024-12-19
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP210101866
• 关键词: Nanoscale; repositories; geological; record; Earth

Rhenium-Osmium (Re-Os) dating is used widely to infer Earth's evolution, but most samples are hydrated, with consequent mobility of Re, which is problematic for interpretation of isotope results. This project will solve this problem by determining the effects of hydration on Re and Os. Further, our knowledge of the mobility of Re and related elements will allow us to recognise rocks that once interacted with water, even after that water has gone, providing a tool to read the record of Earth's earliest oceans. Our new methods will enable Re-Os dating with clarity and confidence, with profound implications for understanding of Earth and extra-terrestrial planetary evolution.

铼-锇（Re-Os）定年法被广泛用于推断地球的演化，但大多数样品都是水合的，因此Re的流动性很大，这对同位素结果的解释是有问题的。该项目将通过确定水化对Re和Os的影响来解决这个问题。此外，我们对Re和相关元素的流动性的了解将使我们能够识别曾经与水相互作用的岩石，即使在水消失之后，也可以提供一种工具来阅读地球最早的海洋记录。我们的新方法将使Re-Os测年更加清晰和自信，对理解地球和地外行星的演化具有深远的意义。