地震复数道特性的显示对于我们在地震剖面上确定薄层是很有帮助的。假设地震剖面上的子波是零相位,那么,那些厚度大约相当于主反射波峰到峰周期的一半的低阻抗地层在瞬时振幅剖面上就将表现为异常高的振幅带。这些异常是由众所周知的振幅调谐效应所造成。当具有极性相反且彼此相差半周期的反射系数与地震子波进行褶积时,就会出现这种调谐效应。当地层变薄到相当于强反射周期 The display of seismic complex characteristics is very helpful for us to determine the thin layer on the seismic section. Assuming that the wavelet in the seismic section is zero-phase, then those low impedance formations that are about half the thickness of the main reflection peak-to-peak period will behave as unusually high amplitude bands over the transient amplitude profile. These anomalies are caused by the well-known amplitude tuning effect. This tuning effect occurs when the reflection coefficient with opposite polarities and a half period difference from each other is convoluted with seismic wavelet. The local thinning to the equivalent of a strong reflection period