【摘要】 通过提取江苏、浙江及上海数字地震台网台站远震记录的接收函数,反演了这些台站下方地壳的S波速度结构,同时计算出了地壳的厚度及泊松比。初步分析发现,该地区莫霍面起伏不大,江苏地区地壳厚度大约是30km,地壳中存在4~5km厚的低速夹层,位于地面以下15~22km之间。浙江地区地壳内部不存在低速区,并且莫霍面深度自北向南逐渐加深。更多还原

【Abstract】 Using some teleseismic events collected from the earthquake stations of Jiangsu, Zhejiang, Shanghai digital networks, we obtained the receiver functions of the stations, inversed the crustal S-wave velocity structure under these stations, and calculated the depths of Moho and poisson’s ratios. The elementary result reveals that in this area the depth of Moho varies a little. In the Jiangsu area the crustal thickness is about 30km, between 15-22km underground there exists a low velocity area about 4-5km thick. In the Zhejiang area, there isn’t low velocity area and the crust becomes deep from north to south.更多还原