论文部分内容阅读
在反射地震初期就已经知道,在地震记录中,看到的若干个干扰同相轴是由具有S波速度的波代替P波的速度的波而引起的,当使用炸药和垂直地震检波器记录的时候,这些干扰同相轴主要是由转换波引起的。在某一地区,在已知P波和S波速度的基础上,可以计算出理论地震记录,并显示不同波型的旅行时及能量的关系。通过与在相同地区的得到的地震记录相比较,转换波同相轴可以被清楚地辨认。这些同相轴能在理论上描述,因此,任何一个更有效的计算机程序可以被用于消除这些干扰波同相轴,或者使这些同相轴得到评价,获得关于特殊层的额外信息。
It has been known at the beginning of the reflection earthquake that in the seismic record several disturbing events were observed due to the wave of velocity of the P-wave in place of the wave of the S-wave velocity recorded when using explosives and a vertical geophone These interfering events are mainly caused by converted waves. Based on the known P-wave and S-wave velocities in a certain area, theoretical seismograms can be calculated and the travel time and energy of different wave forms can be displayed. By comparing the resulting seismograms in the same area, the converted wave events can be clearly identified. These events are theoretically described, so any more efficient computer program can be used to eliminate these interfering wave events or to evaluate these events to obtain additional information about the particular layer.