| 祁连山与龙首山断层的分维特征 |
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| 引用本文： | 石特临,郭大庆,杨玉衡,郭建康,肖丽珠,孙景芳.祁连山与龙首山断层的分维特征[J].西北地震学报,1990,12(3):23-32. |
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| 作者姓名： | 石特临 郭大庆 杨玉衡 郭建康 肖丽珠 孙景芳 |
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| 作者单位： | 国家地震局兰州地震研究所
(石特临，郭大庆，杨玉衡，郭建康，肖丽珠)，国家地震局兰州地震研究所(孙景芳) |
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| 摘 要： | 本文利用分维几何学方法对祁连山和龙首山断层进行了定量性研究。结果表明,分维数可以表征断层的不均匀性、不规则性和复杂性等,但是,与地震活动无明显的相关关系。分维数的大小与断层分枝数、断层迹线的展布面积有一定关系。
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| 关 键 词： | 断层 分维特征 地震 |
| 收稿时间： | 1990/4/6 0:00:00 |
THE FEATURES OF FRACTAL DIMENSION IN QILIAN MOUNTAIN FAULT AND LONGSHOU MOUNTAIN FAULT |
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| Shi Telin,Guo Daqing,Yang Yuheng,Guo Jiankang,Xiao Lizhu and Sun Jingfang.THE FEATURES OF FRACTAL DIMENSION IN QILIAN MOUNTAIN FAULT AND LONGSHOU MOUNTAIN FAULT[J].Northwestern Seismological Journal,1990,12(3):23-32. |
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| Authors: | Shi Telin Guo Daqing Yang Yuheng Guo Jiankang Xiao Lizhu and Sun Jingfang |
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| Institution: | Earthquake Research Institute of Lanzhou, SSB, Gansu, China,Earthquake Research Institute of Lanzhou, SSB, Gansu, China,Earthquake Research Institute of Lanzhou, SSB, Gansu, China,Earthquake Research Institute of Lanzhou, SSB, Gansu, China,Earthquake Research Institute of Lanzhou, SSB, Gansu, China and Earthquake Research Institute of Lanzhou, SSB, Gansu, China |
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| Abstract: | Fractal geometry is applied to the quantitative analysis of Qilian Mountain fault and Longshou Mountain fault. Using the circle area covering method, the fractal dimensions for every segment of Longshou Mountain. fault range from 1.308 to 1.434 with confidence 99%. Using ruler method, the D values of the total fault, west segment, median segment and east segment for the main fault trace of Qilian Mountain are respectively 1.0118, 1.0043, 1.0154 and 1.0075 with confidences 95-99%. And by means of circle area covering method, the D values are 1.518, 1.549, 1.537 and 1.460 respectively for the total fault and every segment of Qilian Mountain.The study results show that the fractal dimension D may express fault hetereogeneity, irregularity, complexity and so on. But according to the results, the correspondence between earthquake activity and fractal dimension is not Obtained. There is a slight correlation between the fractal dimension and the branch number and the occupied area of branches. |
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