本项目拟针对东亚大陆新生代分布面积最大的阿巴嘎火山，实施宽频带流动地震观测，开展接收函数与背景噪声及面波频散资料的联合反演、三维速度模型的接收函数偏移成像、三维初始模型的远震体波有限频走时层析成像，构建研究区150km以浅的三维S波速度模型、上地幔三维P波和S波速度扰动模型、岩石圈和软流圈界面（LAB）深度模型、上地幔410km和660km间断面深度模型，为阿巴嘎火山成因机制研究提供地球物理观测证据。

Focused on the Abaga volcano, the largest Cenozoic volcano area of East Asian continent, it is proposed to deploy passive broadband seismic observation and study, to carry out the joint inversion of receiver function and dispersion data of seismic ambient noise and surface wave data, the migration and imaging of receiver function in three-dimensional velocity structure, the finite-frequency travel time tomography of teleseismic body wave with initial three-dimensional velocity models, to reconstruct the three-dimensional S wave velocity model within the depth of less then 150km, the upper mantle three-dimensional P and S wave velocity relative variation model, LAB and upper mantle discontinuity depth model, to provide seismological evidences for the origin of Abaga volcano.