太平洋板片俯冲导致了华北克拉通明显破坏，发生岩石圈减薄、地壳上地幔构造变形和岩浆活动。因尚缺乏高分辨率的地壳上地幔结构和各向异性的约束，对太平洋板片俯冲和华北克拉通破坏过程的认识仍存在争议。密集台阵观测是目前获取精细地壳上地幔结构和各向异性的最有效途径。中国地震局地球物理研究所组织的ChinArray计划和中国地震台网的台站分布对华北克拉通形成了空前的覆盖，为本申请开展地壳上地幔结构和各向异性研究提供了绝佳机会。本申请将利用背景噪声伴随层析成像进行全波形反演，揭示地壳上地幔顶部S波速度结构，采用远震走时层析成像构建上地幔三维P波和S波速度模型，应用基于三维速度模型的接收函数CCP叠加获取地幔转换带结构，根据接收函数综合分析和多种资料联合反演方法计算地壳、上地幔各向异性，以此研究华北克拉通地壳上地幔结构变形和地质构造演化过程，探讨太平洋板片俯冲和华北克拉通破坏的深部地球动力学问题。

The pacific plate subduction resulted in the significant destruction of North China Craton (NCC), which is mainly characterized by the lithosphere thinning, crustal and mantle tectonic deformation and magmatic activity. It is still controversial in detail knowledge on the pacific plate subduction and the NCC decratonic process due to the lack of constraints on high resolution imaging of the crustal and mantle structure and anisotropy. Now, the dense array observation is the most effective way to obtain fine crustal and mantle structure and anisotropy. The unprecedented distribution of the seismic stations deployed by the ChinaArray project organized by Institute of Geophysics, China Earthquake Administration and China National Seismic Network in NCC region provides an excellent opportunity for us to inverse robust crustal and mantle structure and anisotropy. In this application, we plan to use ambient noise adjoint tomography to inverse the crustal and uppermost mantle S-wave velocity structure, adopt teleseismic traveltime tomography to obtain the upper mantle P-wave and S-wave velocity model, apply the common-conversion-point stacking (CCP) of receiver function based on the three dimensional velocity model to image the structure of the mantle transition zone and employ the joint analysis of receiver function and the Bayesian inversion of multiple data types to calculate the crustal and mantle anisotropy respectively, which is used to constrain the crustal and mantle structure deformation and geological tectonic evolution and discuss the deep geodynamic problem of the pacific plate subduction and the NCC destruction.