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活断层形变数据反演

Inversion of Mechanism of Active Faults by Deformation Data

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【作者】 伍吉仓陈永奇许才军

【Author】 WU Ji cang 1, CHEN Yong qi 2, XU Cai jun 3 (1.Department of Surveying and Geo Informatics, Tongji University,Shanghai 200092,China; 2.Department of LSGI, The Hong Kong Polytechnic University, Hong Kong, China; 3.Wuhan Technical University

【机构】 同济大学测量与国土信息工程系!上海200092香港理工大学土地测量与地理信息系!香港武汉测绘科技大学!湖北武汉430079

【摘要】 本文主要讨论了利用形变数据反演断层运动位错模型参数的贝叶斯方法。利用现代大地测量方法 ,尤其是空间大地测量方法获得的地壳形变数据 ,可以用来反演活动断层的位错模型参数 ,并且利用反演得到的结果 ,确定断层运动的闭锁区。作为应用 ,给出了运用地表观测站观测到的速度值反演圣安德烈斯断层运动位错模型参数的结果 ,并且据此预测了沿圣安德烈斯断层未来最可能发生地震的断层分段

【Abstract】 In this paper, the Bayesian inversion method has been studied and applied in the determination of parameters of dislocation model of active faults by using crust deformation surveying data. Based on the deformation data obtained by modern geodetic surveying, especially the space geodetic surveying, the parameters of the dislocation model of active faults can be determined and the inversion results can be used to deduce the locked fault segments. As an example, the parameters of dislocation model of San Andres Fault has been determined by the data on the velocities of the ground observation stations, and further the locked segments along SAF was deduced where should be the potential earthquake sites.

【基金】 国家杰出青年科学基金资助项目! ( 4972 54 11)
  • 【文献出处】 测绘学报 ,ACTA GEODAETICA ET CARTOGRAPHIC SINICA , 编辑部邮箱 ,2000年S1期
  • 【分类号】P227
  • 【被引频次】10
  • 【下载频次】216
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