| 华东及安徽地区断裂构造及分形分析 |
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| 引用本文： | 沈小七,陈宇卫,刘东旺,张杰,刘泽民.华东及安徽地区断裂构造及分形分析[J].灾害学,2005,20(3):53-56. |
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| 作者姓名： | 沈小七 陈宇卫 刘东旺 张杰 刘泽民 |
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| 作者单位： | 安徽省地震局,安徽,合肥,230031 |
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| 摘 要： | 本文在对安徽及华东地区地震断裂构造分析的基础上,利用数盒子法计算了华东及安徽的活动断裂的分形维数,并从分形理论的角度讨论了活动断裂和地震活动性之间的关系,认为活动断裂的分形维数和地震活动性的分形维数是相等的.对华东及安徽的3种类型断裂(基底断裂、地壳断裂及岩石圈断裂)的不同分形维数和该区域地震的b值关系分析,认为该地区地壳断裂控制了该区域的地震活动.
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| 关 键 词： | 断裂构造 分形 b值 华东地区 |
| 文章编号： | 1000-811X（2005）03-0053-04 |
| 收稿时间： | 2005-03-07 |
| 修稿时间： | 2005年3月7日 |
Study on the Fracture Structure in East China and Anhui Region by Fractal Theory |
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| SHEN Xiao-qi,CHEN Yu-wei,LIU Dong-wang,ZHANG Jie,LIU Ze-min.Study on the Fracture Structure in East China and Anhui Region by Fractal Theory[J].Journal of Catastrophology,2005,20(3):53-56. |
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| Authors: | SHEN Xiao-qi CHEN Yu-wei LIU Dong-wang ZHANG Jie LIU Ze-min |
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| Abstract: | Based on the study of the fracture structure in East China,we calculate the fractal dimension of these faults by box counting method.Then we further discuss the relationship between fracture structure and seismicity of this region in the light of fractal theory.We find that the fractal dimension of these fracture structure is just the same with that of seismicity in this region.The scale of b-value of earthquakes in this region must be relevant to the spatial distribution of the fracture structure.We think that there 3 type(floor rupture,crust rupture and geosphere rupture) and 4 direction(EW,NNE,NE,NW) faults control the earthquake activity in east China. |
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| Keywords: | fracture structure fractal theory b-value East China |
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