| 基于GPS观测的地壳水平运动划分活动地块的试验 |
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| 引用本文： | 李延兴,胡新康,帅平,郭良迁.基于GPS观测的地壳水平运动划分活动地块的试验[J].中国地震,2000,16(2):135-139. |
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| 作者姓名： | 李延兴 胡新康 帅平 郭良迁 |
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| 作者单位： | 中国天津,300180,中国地震局第一地形变监测中心 |
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| 基金项目： | 本文得到国家重点基础研究发展规划项目G19984070资助. |
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| 摘 要： | 本文分析了板内块体与板块运动的差别，提出以Ｂｕｒｓａ公式作为板内块体的运动学模型，并据此提出了划分板内活动地块的方法。根据华北ＧＰＳ网１９９５、１９９６和１９９９年的３期观测成果，用本文提出的数学模型和方法，将华北北 剖地区划分为８个小块体。本文用地壳水平运动划分的结果与用本区地壳垂直运动划分的结果在是体旧一致或相近的。本文的划分结果与新构造运动也基本一致，本区活动块体的现今运动是新构造的继承和发
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| 关 键 词： | 水平运动 数学模型 块体划分 GPS 地壳 |
Test of Active Blocks Division Based on Horizontal Crustal Movement Observed by GPS |
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| Li Yanxing,Hu Xinkang,Shuai Ping,Guo Liangqian.Test of Active Blocks Division Based on Horizontal Crustal Movement Observed by GPS[J].Earthquake Research in China,2000,16(2):135-139. |
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| Authors: | Li Yanxing Hu Xinkang Shuai Ping Guo Liangqian |
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| Abstract: | In the paper, the difference between the movements of intraplate block and plate has been analyzed, the idea to use Bursa formula as the dynamic model for intraplate blocks has been suggested and the methods for dividing the intraplate active blocks have been proposed. Based on three periods of data from North China GPS Networks observed in 1995,1996 and 1999, and with the mathematical model and the methods proposed in the paper, the northern part of North China has been divided into 8 small blocks. The results of division based on horizontal crustal deformation and that based on vertical crustal deformation in the papper are generally consistent or similar. The result of division in the paper is basically consistent with the neotectonic movement, and the current movement of active blocks in this area is the inheritance and development of the neotectonics. In addition, the tectonic units divided according to the horizontal crustal movement have shown some characteristics of new activity. |
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| Keywords: | Horizontal deformation\ Mathematical model\ Division of blocks |
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