Phase Transformations in Mantle Minerals

地幔矿物的相变

• 批准号: 8817097
• 负责人: Robert Liebermann
• 金额: $ 19.8万
• 依托单位: SUNY at Stony Brook
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-02-01 至 1991-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8817097&HistoricalAwards=false
• 关键词: Phase; Transformations; Mantle; Minerals

Phase transformations in mantle minerals at high pressures and temperatures play a major role in the static and dynamic processes of the Earth's interior, especially in the transition zone from the upper to the lower mantle at depths between 350 and 700 km. This action provides funds for support of research focused on two projects to study the properties and processes associated with these polymorphic phase transformations (1) Pressure dependence of the elastic properties of high-pressure phases; and (2) kinetics and mechanisms of phase transformations. These experiments will be the large-volume, high-pressure facilities of the Stony Brook High Pressure Laboratory.

在高压和高温下，地幔矿物的相变在地球内部的静态和动态过程中起着重要作用，特别是在350 - 700 km深度的上地幔到下地幔的过渡区。这一行动为研究与这些多晶相转变相关的性质和过程的两个项目提供了资金支持(1)高压相弹性性质的压力依赖性；(2)相变动力学和机理。这些实验将在石溪高压实验室的大容量高压设备上进行。