Banded iron formations: life, oxygen and ocean chemistry

带状铁的形成：生命、氧气和海洋化学

• 批准号: DP190102237
• 负责人: Adj/Prof Birger Rasmussen
• 金额: $ 30.17万
• 依托单位: The University of Western Australia
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2019
• 资助国家: 澳大利亚
• 起止时间: 2019-05-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP190102237
• 关键词: Banded; iron; formations; life; oxygen

This project aims to investigate the co-evolution of life and environments during Earth’s first two billion years using iron-rich chemical sediments deposited from global oceans. The project expects to generate knowledge of Earth’s transition into a planet habitable for complex life by combining nanoscale characterisation techniques, with laboratory experiments and theoretical modelling. Expected outcomes include transformative ideas about the role of life in iron and phosphorus cycles, the chemistry of the early ocean, ancient biological productivity, the antiquity of oxygenic photosynthesis and the rise of oxygen. The project will also deliver new conceptual models for the formation of the host-rocks for most of the world’s iron resources, improving how we explore for iron in the Earth’s crust. This should provide benefits to understanding geobiology on Earth and other planets.

该项目旨在利用从全球海洋沉积的富含铁的化学沉淀物，研究地球最初20亿年期间生命和环境的共同进化。该项目希望通过将纳米尺度的表征技术与实验室实验和理论建模相结合，产生关于地球转变为适合复杂生命居住的行星的知识。预期的结果包括关于生命在铁和磷循环中的作用、早期海洋的化学成分、古代生物生产力、充氧光合作用的古老和氧气的上升的变革性观点。该项目还将为世界上大多数铁资源的寄主岩石的形成提供新的概念模型，改善我们在地壳中寻找铁的方式。这应该有助于理解地球和其他行星上的地球生物学。