Pn Tomography of the Middle East to Central Asia: Implications for the Evolution of Continental Plateaus

本研究旨在确定中东和中亚地区上地幔纵波速度的横向变化，并确定地壳厚度。这个地区受到阿拉伯板块和欧亚板块以及印度板块和欧亚板块之间大陆碰撞的影响。该方法是对来自世界标准化地震台网和其他亚洲台站的大型区域地震传播时数据库进行层析反演。得到的上地幔速度和地壳厚度将用于约束碰撞山带后大陆高原演化的模型，以及控制地震分布的因素。这项研究是国家减少地震危害计划的一个组成部分。

This research is to determine the lateral variation in the uppermost mantle P-wave velocity and to determine the crustal thickness in the Middle East and Central Asia. This region has been affected by continental collision between the Arabian and Eurasian plates and between the Indian and Eurasian plates. The method is a tomographic inversion of the large data base of regional seismic travel times from the Worldwide Standardized Seismographic Network and other Asian stations. The derived uppermost mantle velocities and crustal thicknesses will be used to constrain models for the evolution of continental plateaus behind collisional mountain belts, and factors controlling earthquake distribution. This research is a component of the National Earthquake Hazard Reduction Program.