Evolution of sub-arc mantle oxidation state over Earth’s history

地球历史上弧下地幔氧化态的演化

• 批准号: FT180100533
• 负责人: Prof Andrew Tomkins
• 金额: $ 70万
• 依托单位: Monash University
• 依托单位国家: 澳大利亚
• 项目类别: ARC Future Fellowships
• 财政年份: 2019
• 资助国家: 澳大利亚
• 起止时间: 2019-01-01 至 2023-12-05
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/FT180100533
• 关键词: Evolution; sub; arc; mantle; oxidation

This project aims to determine how the oxidation state of the Earth's mantle has changed throughout geologic history in response to recycling of sulfur, carbon and iron though subduction zones, and how this has influenced mineral deposit formation. The expected outcome is a holistic model that ties evolution of the Earth's biosphere to geochemical changes in the deep Earth that control mineral deposit formation. By improving our understanding of how, where, when and why mineral deposits formed, this project should provide improvements in mineral exploration strategy, and thus benefits to Australia's economy.

该项目旨在确定在整个地质历史中，地幔的氧化状态是如何随着硫、碳和铁在俯冲带的再循环而变化的，以及这是如何影响矿床的形成的。预期的结果是建立一个整体模型，将地球生物圈的演化与地球深部控制矿床形成的地球化学变化联系起来。通过提高我们对矿藏形成的方式、地点、时间和原因的理解，该项目将改善矿产勘探策略，从而有利于澳大利亚的经济。