Structure of the Lithosphere Beneath North America

9628401这项研究将接收函数和面波信息结合起来，以建立相互一致的地壳和上地幔地球结构模型。接收函数和面波对地球的剪切速度都很敏感，但这些波形中包含的信息是互补的。接收函数主要对速度对比敏感，面波主要对缓慢变化的速度变化敏感。将这些互补信息结合起来，应该会产生更好的地下剪切速度变化的图像。工作将在北美开始。这一结果将有助于理解大陆演化过程中地壳和地幔之间的相互作用。***

9628401 Ammon This research involves the combination of receiver-function and surface-wave information into the construction of a mutually consistent Earth-structure model of the crust and upper mantle. Both receiver functions and surface waves are sensitive to the shear velocity of the Earth but the information contained in these waveforms is complementary. Receiver functions are predominantly sensitive to the velocity contrasts, the surface waves are predominantly sensitive to slowly-varying velocity changes. Combining this complementary information should produce better images of the subsurface variations in shear velocity. Work will begin in North America. The results will help to understand the interaction between the curst and mantle during the evolution of the continents. ***