Renewal-Experimental Study of Equation of State and Elasticity of Earth Materials at High Pressure and Temperature

[9316980]毛：pi将继续用金刚石-砧细胞系统地研究土材料的状态方程和弹性方程。他们将使用同步加速器x射线衍射技术来确定晶格参数和摩尔体积，并使用布里渊光谱来确定高压和高温下的纵波和横波速度。利用最近建立的实验技术，他们将系统地获得代表真实地球成分模型的全面和准确的数据库。他们将继续将精确测定弹性特性的实验能力扩展到更高的压力和温度，并将在下地幔和地核的极端P-T条件下进行侦察实验。获得的数据库将用于约束地球深部结构、动态和进化模型。＊＊＊＊

9316980 Mao The PIs will continue their systematic study of the equations of state and elasticity of Earth Materials with diamond-anvil cells. They will use synchrotron x-ray diffraction techniques to determine lattice parameters and molar volumes, and Brillouin spectroscopy to determine compressional and shear wave velocities, both at high pressure and temperature. With recently established experimental techniques, they will systematically acquire a comprehensive and accurate database representative of realistic Earth compositional models. They will continue to extend experimental capabilities of accurate determinations of elastic properties to higher pressure and temperature, and will conduct reconnaissance experiments at the extreme P-T conditions of the lower mantle and core. The acquired database will be applied to constrain structural, dynamic, and evolutionary models of the Earth's deep interior. ****