首页|期刊导航|大地测量与地球动力学|MULTI-SCALE DECOMPOSITION OF BOUGUER GRAVITY ANOMALY AND SEISMIC ACTIVITY IN NORTH CHINA
大地测量与地球动力学2003，Vol.23Issue(z1)：34-40,7.
MULTI-SCALE DECOMPOSITION OF BOUGUER GRAVITY ANOMALY AND SEISMIC ACTIVITY IN NORTH CHINA
MULTI-SCALE DECOMPOSITION OF BOUGUER GRAVITY ANOMALY AND SEISMIC ACTIVITY IN NORTH CHINA
摘要
Abstract
Bouguer gravity anomaly in North China is decomposed with multi-scale decomposition technique of wavelet transform. Gravity anomalies produced by anomalous density bodies of various scales are revealed from surface to Moho. Characteristics of anomalies of different orders and corresponding structural features are discussed. The result shows that details of wavelet transform of different orders reflect the distribution features of rock density at different depths and in various scales. In most cases, the two sides of a fault-especially a deep and large fault-in North China differ greatly in rock density. This difference records the history of the formation and evolution of the crust. Deep structural setting for the Ms≥7.0 strong earthquakes in this region is also discussed.关键词
multi-scale decomposition of wavelets/Bouguer gravity anomaly/rock density/seismic activity/North ChinaKey words
multi-scale decomposition of wavelets/Bouguer gravity anomaly/rock density/seismic activity/North China分类
天文与地球科学引用本文复制引用
Fang Shengming,Zhang Xiankang,Jia Shixu,Duan Yonghong,Yang Zhuoxin,Qiu Shuyan..MULTI-SCALE DECOMPOSITION OF BOUGUER GRAVITY ANOMALY AND SEISMIC ACTIVITY IN NORTH CHINA[J].大地测量与地球动力学,2003,23(z1):34-40,7.基金项目
Supported by the National Natural Science Foundation(No. 49774230) and the National Key Basic Research and Development Program(No. G1998040702. （No. 49774230）
