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

该项目旨在确定在整个地质历史中，地幔的氧化状态如何随着俯冲带中硫、碳和铁的再循环而发生变化，以及这如何影响矿物存款的形成。预期成果是一个整体模型，将地球生物圈的演变与控制矿物存款形成的地球深部的地球化学变化联系起来。通过提高我们对矿床形成的方式、地点、时间和原因的理解，该项目应能改进矿产勘探战略，从而有利于澳大利亚的经济。

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.