Olympic Dam in a Test Tube: Critical Experiments and Theory for Understanding Fe-Cu-U-REE in Hydrothermal Fluids and during Fluid-Rock Interaction

试管中的奥林匹克大坝：了解热液中以及流体-岩石相互作用过程中 Fe-Cu-U-REE 的关键实验和理论

• 批准号: DP140102765
• 负责人: Prof Joel Brugger
• 金额: $ 19.91万
• 依托单位: Monash University
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2014
• 资助国家: 澳大利亚
• 起止时间: 2014-06-01 至 2018-10-01
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP140102765
• 关键词: Olympic; Dam; Test; Tube; Critical

Olympic Dam (OD) is a supergiant Cu-U-Au-Ag-REE ore deposit, containing more than a trillion Australian dollars worth of metals, and hosted by hematite-rich breccia in South Australia. Yet, key aspects of the geochemistry of OD-style deposits remain poorly understood. This project will conduct innovative experiments to address the role for fluorine in Fe, U and REE transport at OD, and the role of fluid-rock interaction in generating the unusually oxidised Fe-Cu mineral assemblages and in controlling U grades and distribution. The fundamental information gained will underpin intense on-going research aimed at discovering new OD-style orebodies and at creating new ore-processing technology that are environmentally sustainable and able to access lower-grade ores.

奥林匹克大坝(OD)是一个超大型的铜-铀-金-银-稀土矿床，含有价值超过1万亿澳元的金属，赋存于南澳大利亚富含赤铁矿的角砾岩中。然而，对OD式矿床的地球化学的关键方面仍然知之甚少。该项目将进行创新性实验，以探讨氟在OD时Fe、U和REE迁移中的作用，以及流体-岩石相互作用在产生异常氧化的Fe-Cu矿物组合和控制U品位和分布方面的作用。获得的基本信息将支持正在进行的紧张研究，旨在发现新的OD式矿体，并创造环境可持续并能够获得较低品位矿石的新矿石加工技术。