摘要
利用小波特性可以提取航空重力异常的重要信息,笔者采用小波分析方法建立三维地质体模型,讨论了小波模与地质体边界的对应关系。以我国某海域航空重力资料为例,利用小波模极大值识别了断裂信息,并与航空布格重力异常及其方向导数识别的断裂进行对比分析。结果表明,利用小波模不仅可以识别断裂构造,在航空布格异常和方向导数识别模糊的地区效果更为明显。
The characteristics of wavelet can be used to extract important information of airborne gravity anomaly. In this paper, the au-thors established the geological model using wavelet analysis theory, and then discussed the corresponding relationship between geolog-ical body boundary and wavelet magnitude. Based on the airborne gravity data obtained in some sea areas of China, the authors used the maximal value of wavelet magnitude to identify the fracture information in comparison with the airborne Bouguer gravity anomaly and its directional derivative. The result shows that wavelet magnitude can identify the fracture, especially in the area with fuzzy result of the airborne Bouguer gravity anomaly and its directional derivative.
出处
《物探与化探》
CAS
CSCD
2014年第1期96-99,共4页
Geophysical and Geochemical Exploration
关键词
航空重力
小波分析
小波模
断裂
airborne gravity
wavelet analysis
wavelet magnitude
fracture
