The Jiaodong Peninsula is an ideal region for studying the geodynamics of collision between the North China Craton (NCC) and South China Block (SCB). It is comprised of the Jiaobei massif and the Northern Sulu UHP massif which are separated by the Wulian suture zone (WSZ). Continent-continent collision is necessarily accompanied with crustal deformation. Consequently a detailed crustal deformation pattern would offer observational constraints for understanding the process of the collision. In this study, we measured the crustal azimuthal anisotropy beneath a broadband seismic profile of 20 stations together with 9 permanent stations in the Jiaodong Peninsula. Sinusoidal moveout of Pms phases from radial receiver functions and azimuth-weighted stacking of transverse receiver functions were jointly applied to ensure the reliability of results. In the WSZ, the fast directions are roughly parallel with the NE oriented fault strike, suggesting the Jiaodong Peninsula may preserve fossilized anisotropy in the crust induced by the Triassic collision of the NCC and SCB although have undergone subsequent lithosphere destruction and thinning since the late Mesozoic. We therefore support that the WSZ represents the NCC-SCB suture east of Tanlu fault. In the Jiaobei massif, the crustal azimuthal anisotropy is controlled by both the nearly E-W local stress and NNE-strike detachment faults. The anisotropy beneath the Northern Sulu massif is quite weak with delay times all less than 0.20 s, probably related to the high-density UHP metamorphic rocks which are difficult to generate strong anisotropy inside.

胶东半岛是研究华北克拉通（NCC）和华南区块（SCB）之间碰撞地球动力学的理想区域。它包括由五莲缝合带（WSZ）隔开的胶北断层块和苏鲁北部的超高压断层块。大陆与大陆的碰撞必然伴随着地壳变形。因此，详细的地壳变形模式将为观察碰撞过程提供观测约束。在这项研究中，我们测量了胶东半岛20个站点和9个永久站点的宽带地震剖面下的地壳方位角各向异性。联合应用了径向接收器函数的Pms相正弦偏移和横向接收器函数的方位角加权叠加，以确保结果的可靠性。WSZ的快速方向大致与NE定向的断层走向平行，这表明胶东半岛可能保留了NCC和SCB三叠纪碰撞引起的地壳中的化石各向异性，尽管自中生代晚期以来已经历了岩石圈的破坏和变薄。 。因此，我们支持WSZ代表Tan鹿断层以东的NCC-SCB缝合线。在胶北地块中，地壳的方位各向异性由 因此，我们支持WSZ代表Tan鹿断层以东的NCC-SCB缝合线。在胶北地块中，地壳的方位各向异性由 因此，我们支持WSZ代表Tan鹿断层以东的NCC-SCB缝合线。在胶北地块中，地壳的方位各向异性由Ë -W局部应力和北北东走向脱离故障。苏鲁北部地块下方的各向异性非常弱，延迟时间均小于0.20 s，这可能与高密度超高压变质岩有关，这些岩石很难在内部产生强各向异性。