突变理论在断层检测中的应用尝试  

THE APPLICATION OF CATASTROPHE THEORY IN FAULTS DETECTION

作　　者：罗振丽[1] 张爱敏[1] 丁在宇[1] 

机构地区：[1]中国矿业大学,江苏徐州221008

出　　处：《物探化探计算技术》2004年第2期105-108,共4页Computing Techniques For Geophysical and Geochemical Exploration

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.

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 

分 类 号：P631.441[天文地球—地质矿产勘探]