Seismic wavespeeds and attenuation in upper-mantle rocks: a laboratory study of the effect of partial melting

上地幔岩石中的地震波速度和衰减：部分熔融影响的实验室研究。将通过实验室研究探讨部分熔融对地球上地幔地震特性的影响。将制备由上地幔矿物橄榄石和小部分玄武岩浆组成的合成岩石标本，并表征其颗粒尺度熔体分布。这些材料的地震特性将用当地开发的新设备在高温和地震频率下测量。与无熔体的等价物进行比较，将允许增加的岩浆的影响被量化，允许强大的解释地球结构的地震模型，其化学和动力学演化的影响。

Seismic wavespeeds and attenuation in upper-mantle rocks: a laboratory study of the effect of partial melting. The influence of partial melting on the seismic properties of the Earth's upper mantle will be explored through a laboratory study. Synthetic rock specimens consisting of the upper-mantle mineral olivine and a small proportion of basaltic magma will be prepared and their grain-scale melt distribution will be characterised. The seismic properties of these materials will be measured at high temperatures and seismic frequencies with novel locally developed equipment. Comparison with melt-free equivalents will allow the influence of the added magma to be quantified, allowing robust interpretation of seismological models of Earth structure with implications for its chemical and dynamical evolution.