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本文试图应用波动原理及波动方程来定量描述沉积盆地的发展与演化过程。按照反演的思路,首先根据实际钻井和测井资料可以恢复各地质时期的古沉积速率。这是一条随地质年代变化的不规则曲线。应用滑动窗口方法可将该曲线逐步分解出一些有规律的周期波,并可以计算它们的周期、振幅,从而建立描述沉积速率曲线的波动方程。应用该方程可以预测深部及周围无资料地区的沉积、剥蚀过程,计算剥蚀量和定量地恢复盆地的形成演化史。文中给出了该方法在西西伯利亚的应用实例。
This paper attempts to use the wave principle and wave equation to quantitatively describe the development and evolution of the sedimentary basin. According to the idea of inversion, we first recover the paleo-sedimentation rate of each geological period based on actual drilling and well logging data. This is an irregular curve that varies with geologic age. The sliding window method can be used to decompose the curve into some regular periodic waves and calculate their period and amplitude so as to establish the wave equation describing the deposition rate curve. Applying this equation can predict the sedimentation and erosion processes in the deep and surrounding non-material areas, calculate the denudation and quantitatively recover the evolution history of the basin. The application of this method in West Siberia is given in this paper.