Global Mantle Structure from Long-Period Body Waves

本研究是长周期体使用的延续 非球面弹性和滞弹性结构的波数据解析 在地幔中。 来自全球数字网络的新数据将在 用于更新绝对和差分体波传播时间 以及添加新的差分体波类型。 衰减 微分相位的参数将用于约束 三维衰减结构 在地球结构反演中 有了这些数据，将从自由振荡中应用约束 和其他研究中产生的叠加结果。 的3-D 地幔的结构对对流有广泛的影响， 地幔和地核;对流是主要的驱动力 地球表面的板块构造和变形。

This research is a continuation of the use of long-period body wave data to resolve aspherical elastic and anelastic structure in the mantle. New data from the Global Digital Network will be used to update absolute and differential body-wave travel times as well as add new differential body-wave types. Attenuation parameters for the differential phases will be used to constrain 3-D attenuation structure. In the inversion for earth structure with this data, constraints will be applied from free-oscillation and stacking results generated in other studies. The 3-D structure of the mantle has broad implications on convection in the mantle and core; convection is the primary driving force for plate tectonics and distortion on the surface of the earth.