Self-zoning in natural uraninite: radiation driven chemical separation

天然铀矿的自分区：辐射驱动的化学分离

• 批准号: LP190100933
• 负责人: Prof Allan Pring
• 金额: --
• 依托单位: Flinders University
• 依托单位国家: 澳大利亚
• 项目类别: Linkage Projects
• 财政年份: 2021
• 资助国家: 澳大利亚
• 起止时间: 2021-03-22 至 2021-03-22
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/LP190100933
• 关键词: Self; zoning; natural; uraninite; radiation

In this project we aim to explore and define the effects of the substitution of lead and rare earths on the crystal chemistry of uranium dioxide (uraninite) and related minerals, towards establishing the oxygen stoichiometry (as a measure of oxygen fugacity) of these materials both in nature and in synthetic materials. This project will use synthetic materials to understand the variability of oxygen stoichiometry, establish accurate and precise structures for the oxides, and distinguish both long range and short-range order which is critical to understanding both natural and synthetic U-oxides. This will help to define the geochemical conditions leading to the formation of deposits like Olympic Dam towards potential economic benefit.

在这个项目中，我们的目标是探索和定义铅和稀土的替代对二氧化铀（铀矿）和相关矿物的晶体化学的影响，以建立这些材料在自然界和合成材料中的氧化学计量（作为氧逸度的测量）。该项目将使用合成材料来了解氧化学计量学的可变性，为氧化物建立准确和精确的结构，并区分长距离和短程顺序，这对于理解天然和合成的u -氧化物至关重要。这将有助于确定导致像奥林匹克大坝这样的矿床形成的地球化学条件，从而获得潜在的经济效益。