基于欧拉反褶积方法估算华北地区重力变化的等效源参数

Abstract

Abstract: Based on absolute and relative gravity observations from 2009 to 2014 in north China, the results of spatial dynamic variation of regional gravity field are obtained. We employed Euler deconvolution method based on theoretical model to get a better estimation of source parameters. Gravity field changes caused by depth and distribution in north China were calculated by back analysis. The results show that it is suitable to inverse gravity variation data when the structural index equals one. The inversed results indicate that positions and depths of anomaly sources spread over Hetao fault. Our method is capable to provide quantitative research related to the field source and may shed new light on the interpretations on the gravity change, and also can provide quantitative basis for earthquake prediction index criterions based on gravity changes.

Key words: Potential field inversion, Gravity Changes, Euler deconvolution, North China

CLC Number:

P315.7

LIU Fang, ZHU Yi-qing, LIANG Wei-feng, YANG Jiao, ZHAO Yun-feng. Estimation of Equivalent Source Parameters of Gravity Changes in North China based on Euler Deconvolution Method[J]. EARTHQUAKE, 2016, 36(4): 163-170.

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Estimation of Equivalent Source Parameters of Gravity Changes in North China based on Euler Deconvolution Method

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