Assessing the mode and fluctuations of Earth’s surface redox changes across and after the Great Oxidation Event using a unique set of Hamersley Basin iron formations, W-Australia

使用一组独特的哈默斯利盆地铁矿层评估大氧化事件期间和之后地球表面氧化还原变化的模式和波动，W-澳大利亚

• 批准号: 442738734
• 负责人: Professor Dr. Ronny Schönberg, Ph.D.
• 金额: --
• 依托单位: School of Biological, Earth and Environmental Sciences (BEES)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/442738734?language=en
• 关键词: Assessing; mode; fluctuations; Earth; surface

In this project we aim to further our understanding of the evolution of oxygen levels and ocean chemistry throughout the Paleoproterozoic, assess different modes of precipitation for iron formations and evaluate a changing environment for the evolution of complex life. We will investigate a unique set of iron formations from Western Australia, spanning a time from 2.42 Ga to 1.86 Ga across and beyond the Great Oxidation Event, for their redox potential. For this, we will combine field observations and petrography with state-of-the-art major and trace element measurements (including REE+Y analyses), and stable Mo- and Fe-isotope data.

在这个项目中，我们的目标是进一步了解整个古元古代氧气水平和海洋化学的演变，评估铁形成的不同沉淀模式，并评估复杂生命进化的环境变化。我们将研究来自西澳大利亚的一组独特的铁矿层，其氧化还原潜力跨越大氧化事件期间和之后的 2.42 Ga 至 1.86 Ga 时间。为此，我们将现场观察和岩相学与最先进的主量元素和微量元素测量（包括 REE+Y 分析）以及稳定的钼和铁同位素数据结合起来。