摘要
简述了突变理论中的尖点突变模型及其表达式,将地震信号转化为尖点突变的标准形式,在时间域内计算突跳势、突跳时间等突跳参数,发现突跳参数曲线上异常的位置与地下断层的位置有关。在这里尝试将突变理论应用于断层的检测,分析了突变理论在断层检测理论上的可行性,对实际地震剖面进行分析解释,取得了一定的效果。这说明利用突变参数进行断层的检测是可行的,突变理论将为地震资料解释提供一种新的途径。
The cusp model of catastrophe theory and its expression are mentioned in this paper. The seismic signal is transformed into the normal form of cusp catastrophe. The parameters of catastrophe, such as catastrophic potential, catastrophic time and so on, are calculated in time domain. It is found that the position of abnormality of the catastrophic parameter curve or profile is related to the location of fault. Thus catastrophe theory is potential to detect fault in this paper. The feasibility is analyzed in theory and a practical section is interpreted with improved result. So that the fault detection using catastrophic parameters is feasible and catastrophe theory will provides a potential method for seismic structure interpretation.
出处
《物探化探计算技术》
CAS
CSCD
2004年第2期105-108,共4页
Computing Techniques For Geophysical and Geochemical Exploration
关键词
突变理论
断层检测
地震资料解释
尖点突变
突跳势
突跳时间
地震剖面
catastrophe theory
fault detection
point catastrophe
catastrophic potential
catastrophic time
seismic section
