中国边缘海及邻区地壳和上地幔速度结构特征

Three dimensional velocity structure feature in the crust and upper mantle beneath Chinese marginal seas and adjacent regions

本文利用中国地震台网和世界地震台网1 222个地震台记录到的27 909个研究区内地震的479 707条P波到时数据和4 995个研究区外远震事件的90 530条P波到时数据,采用多波多震相地震层析成像法重建了中国边缘海及其邻近地区(10°～45°N,105°～145°E,深至1 061 km)的三维速度图像,揭示了中国边缘海及其邻近地区地壳和上地幔三维速度结构特征.

In this paper three-dimensional velocity images beneath the Chinese marginal seas and adjacent regions （10°-45°N,105°-145°E, 1 061 km deep） are reconstructed using 570 237 of P-wave travel time data of 27 909 of regional earthquakes and 4 995 of teleseismic events, supplied by Chinese seismic networks and world seismic networks, and three-dimensional velocity structure features are revealed in the crust and upper mantle of the regions. 1.