Nickel iron sulphide mineralogy: the link between mineral transformations and microstructure and magnetic properties

镍铁硫化物矿物学：矿物转变与微观结构和磁性之间的联系

• 批准号: ARC : DP0344134
• 负责人: A/Prof Allan Pring
• 金额: $ 23万
• 依托单位: South Australian Museum
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2003
• 资助国家: 澳大利亚
• 起止时间: 2003-01-01 至 2006-12-31
• 项目状态: 已结题
• 来源: https://researchdata.edu.au/nickel-iron-sulphide-magnetic-properties/74751
• 关键词: Nickel; iron; sulphide; mineralogy; link

Nickel iron sulphide mineralogy: the link between mineral transformations and microstructure and magnetic properties. This project is about measuring the rate at which minerals transform or react and how metal diffusion controls these reactions. Metal diffusion in sulphides is much more rapid that in silicates and is still very significant at low temperatures (< 300 C). In this project, we are trying to measure the rate at which the principal ore of nickel, pentlandite, transforms to violarite, another important nickel rich sulphide that forms from it in the upper parts of ore bodies. The arrangement of the metal atoms in these minerals is sensitive to temperature, so it may be used as a geothermometer.

镍铁硫化物矿物学：矿物转化与微观结构和磁性之间的联系。这个项目是关于测量矿物转化或反应的速率以及金属扩散如何控制这些反应。金属在硫化物中的扩散比在硅酸盐中快得多，并且在低温（300 ℃）下仍然非常显著。在这个项目中，我们试图测量镍的主要矿石镍黄铁矿转化为紫硫镍矿的速度，紫硫镍矿是另一种重要的富镍硫化物，它在矿体的上部形成。这些矿物中金属原子的排列对温度很敏感，因此可以用作地质温度计。