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根据泰安-隆尧-忻州DSS剖面所获S波信息,参照P波解释结果,计算了包括该剖面的S波速度vs、P波速度与S波速度比γ和泊松比σ在内的二维结构,给出了该剖面的构造轮廓并做出了相应的解释推断.利用不同的介质和构造之间vs,γ和σ的差异,结合邻区资料,划分了剖面上地幔顶部速度的值差为-4％左右的幔隆区（vs=4.30km/s左右）和幔坡区（vs=4.50km/s左右）,再次确认了牛家桥-东旺高角度超壳断裂带的存在,探讨了包括壳幔过渡带在内的低、高速块体（带）的性质和华北裂谷的界定标志.综合研究了解释结果与地震的相关性,认为:地幔上隆、热物质沿高角度超壳断裂上升,初始震源在深30.0～33.0km的壳幔交界处,附加应力激发了牛家桥、东旺下面深9.0km附近特殊部位的6.8级和7.2级等地震,地震围绕高角度超壳断裂发生、并集中于γ和σ值较低的脆性介层之中.
Based on the S-wave information obtained from the Tai’an-Longyao-Xinzhou DSS section and with reference to the P-wave interpretation results, two-dimensional (2D) wave velocities including S-wave velocity vs P-wave velocity and S-wave velocity ratio γ and Poisson’s ratio σ Structure, the contour of the profile is given and the corresponding interpretation and inference are made.Using the difference of vs, γ and σ between different media and structure and the data of the adjacent area, the difference of the velocity of the top of the mantle (About 4.30km / s) and the mantle slope area (vs = 4.50km / s or so) at about -4%, confirming the existence of the Niujiaqiao-Dongwang high-angle crustal fault zone again, The characteristics of low and high velocity blocks (bands) including the crust-mantle transitional zone and the definition of North China rift are discussed.The correlation between interpretation results and earthquakes is comprehensively studied.The results show that the upper mantle uplift, In the crust and mantle boundary of 30.0 ~ 33.0km depth, additional stress excites earthquakes of magnitude 6.8 and 7.2 in the special area near 9.0km deep beneath Niujiaqiao and Dongwang. The earthquakes around high angle super Shell fractures occur and are concentrated in brittle vias with lower γ and σ values.