Properties of hydrous fluids and silicate melts at very high temperatures and pressures

非常高的温度和压力下含水流体和硅酸盐熔体的特性

• 批准号: ARC : DP0344188
• 负责人: Dr Hugh O'Neill
• 金额: $ 26万
• 依托单位: Australian National University
• 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 2005-12-31
• 项目状态: 已结题
• 来源: https://researchdata.edu.au/properties-hydrous-fluids-temperatures-pressures/67437
• 关键词: Properties; hydrous; fluids; silicate; melts

Properties of hydrous fluids and silicate melts at very high temperatures and pressures. High-temperature, high-pressure, water-rich fluids play a central role in many geological processes. However, these fluids are extremely difficult to characterise: although their effects are evident in many rocks, the fluids themselves are too reactive to be preserved. Here several novel techniques are described for studying the compositions and thermodynamic properties of hydrous fluids and silicate melts over a wide range of geologically relevant conditions. The results of this study will greatly improve the understanding of geological processes as widely diverse as volcanism, ore deposition and metamorphism.

高温高压下含水流体和硅酸盐熔体的性质。高温、高压、富含水的流体在许多地质过程中起着核心作用。然而，这些流体极难保存：尽管它们的影响在许多岩石中很明显，但流体本身的反应性太强，无法保存。这里介绍了几种新的技术，用于研究含水流体和硅酸盐熔体在广泛的地质相关条件下的组成和热力学性质。这项研究的结果将大大提高对火山作用、矿床沉积和变质作用等多种地质过程的认识。