Use of Synchrotron Radiation to Study Mechanisms and Kinetics of Phase Transitions in Mantle Materials

利用同步辐射研究地幔材料相变的机制和动力学

• 批准号: 8903855
• 负责人: William Bassett
• 金额: --
• 依托单位: Cornell University
• 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: 1989-06-01 至 1991-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8903855&HistoricalAwards=false
• 关键词: Use; Synchrotron; Radiation; Study; Mechanisms

The study will investigate the mechanisms and kinetics of phase transitions in mantle materials at high pressures and temperatures using using a special high pressure apparatus designed to apply a controlled shear stress to the sample while at high pressure and temperature. The sample will be examined by optical microscope, in situ x-ray diffraction at high pressures and temperatures using synchrotron radiation, and post mortem electron microscope and microprobe analyses. Experimental information on the dynamic behavior of mantle materials at pressures and temperatures that exist within the transition zone of the mantle will be very valuable for understanding the origin and nature of deep focus earthquakes.

本研究将探讨阶段的机制和动力学 地幔物质在高压下的转变， 使用特殊的高压装置 设计成向样品施加受控的剪切应力， 在高压和高温下。 样品将由以下人员检查： 光学显微镜，高压下的原位x射线衍射 和温度，以及死后 电镜和微探针分析。 实验 地幔物质动力学行为的资料. 存在于过渡区内的压力和温度 对于理解地球的起源 和深源地震的性质。