High Temperature Elasticity of Iron-Bearing Minerals

这项工作将侧重于测量地球物理上重要的矿物在高温下的弹性常数（高于1500 K，或在某些情况下达到熔点），特别是含铁矿物，如费雅利石、橄榄石和辉石。这将需要在实验周围建立一个控制流量的氧气压力环境，类似于在缺陷研究中使用的环境，并且需要使用在氧气逸度控制方面熟练的新专业人才。测定了三种矿物的非调和性质及其在高温下非调和性质之间的经验关系。这些关系对地幔对流理论和地震层析成像具有重要的约束作用。

This work will focus on the measurements of elastic constants of geophysically important minerals at high temperatures (above 1500 K, or in some cases up to the melting point), and especially those of iron bearing minerals such as fayalite, olivine, and pyroxene. This will require setting up a controlled flow oxygen pressure environment around the experiment, similar to that used in defect studies, and will require the use of new specialized talent skilled in oxygen fugacity control. The anharmonic properties and empirical relationships between anharmonic properties at high temperature for the three minerals will be measured. These relationships are very helpful in giving constraints on mantle convection theories and seismic tomography.