Elasticity of High Pressure Phases of Mantle Minerals

9614612地幔矿物在高压和高温下的利伯曼相变强烈影响地球内部的物理性质和动力学过程。PI建议对高压地幔相进行超声波测量，以确定它们在高P和同时存在于地球过渡带的高P-T条件下的弹性性质。这些数据将用于通过与地震速度数据的比较来改进和完善地幔的矿物学模型。这项研究计划利用了石溪高压实验室的多砧座、大容量设施和NSF高压研究科学技术中心(CHiPR)的相关分析设施所提供的特殊机会。***

9614612 Liebermann Phase transformations in mantle minerals at high pressures and temperatures strongly influence the physical properties and dynamic processes in the Earth's interior. The PI proposes to perform ultrasonic measurements on high-pressure mantle phases to determine their elastic properties at both high P, and simultaneous high P-T conditions that exist in the Earth's transition zone. The data will be used to improve and refine mineralogical models of the mantle through comparisons with seismic velocity data. This research program takes advantage of the special opportunities provided by the multi-anvil, large- volume facilities of the Stony Brook High Pressure Laboratory and the associated analytical facilities of the NSF Science and Technology Center for High Pressure Research (CHiPR). ***