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波震相
    AN OVERVIEW OF THE CHARACTERISTICS OF PL WAVE PHASE AND ITS APPLICATIONS
    PL波震相特征及其应用综述
    THE APPLICATION OF FULL WAVE PHASE ANALYSIS
    全波震相分析的应用
    Full wave phase analysis (FWPA) is based on the theory of elastic wave propagation and makes use of the up-to-date digit technique to analyze the seismic wave field wholly and synthetically.
    全波震相分析法是以弹性波传播理论为基础,以现代数字技术为手段,对地震波进行全面综合分析的理论和方法.
    By effective identification of S wave phase with DSS data and with the caclulation method of S wave splitting parameters, S wave data from Tai'an Xinzhou profile were calculated and analyzed. As a result, reliable evicence was obtained with respect to crustal medium anisotropy and anomaly of regional stress field orirentation in the region.
    利用深地震测深资料进行S波震相的有效识别和S波分裂参数计算方法 ,对泰安—忻州剖面S波资料的计算分析 ,得到了该区域地壳介质各向异性、区域应力场方向异常的可靠证据 .
    The direct S wave phase of deep teleseisms with epicentral distance of about 50° can be separated from other seismic phases.
    震中距在 5 0°左右的深源远震 ,直达波S波震相波列可以与其他震相波列分离 .
    It is also found that if a continuous transition-region between the crust and the mantle is introduced, we can get a strong apparent head wave phase in synthetic seismogram and the amplitude of this phase increases with the thickness or velocity gradient of the transitional region.
    在壳-幔间断处引入一定厚度和速度变化范围的过渡带,可以得到更加明显的视首波震相,强度随过渡带厚度或速度变化范围的增加而增大.
 

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