| 四川西部现今地壳形变与地震 |
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| 引用本文： | 张四新,刘文义,王双绪.四川西部现今地壳形变与地震[J].大地测量与地球动力学,1998(4). |
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| 作者姓名： | 张四新 刘文义 王双绪 |
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| 作者单位： | 中国地震局第二地形变监测中心 |
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| 基金项目： | 国家“九·五”攻关项目资助 |
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| 摘 要： | 采用分段线性速率动态平差法处理了川西地区７０年代以来的多期区域垂直形变资料。在此基础上，通过垂直形变场的信息分离与动态特征研究，定性、定量相结合分析了川西地区地壳运动现状及未来地震危险区。结果表明：川西地区现今地壳形变场出现转折，呈逆继承性运动，同时运动强度有所减弱。
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| 关 键 词： | 垂直形变 地震危险区 逆继承性运动 川西 |
CURRENT CRUSTAL DEFORMATION FIELD AND EARTHQUAKE OF THE WEST OF SICHUAN |
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| Zhang Sixin,Liu Wenyi and Wang Shuangxu.CURRENT CRUSTAL DEFORMATION FIELD AND EARTHQUAKE OF THE WEST OF SICHUAN[J].Journal of Geodesy and Geodynamics,1998(4). |
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| Authors: | Zhang Sixin Liu Wenyi and Wang Shuangxu |
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| Abstract: | On the basis of processing polyphase vertical deformation data of the west of Sichuan after the 1970s by using the method of segmental linear rate dynamic adjustment, through information separation and dynamic characteristics research of vertical deformation field, the crustal motion situation and the approaching seismic danger area are analyzed qualitatively and quantitatively. The results suggest that the current crustal deformation field of the west area of Sichuan showes the opposite direction and the state of inverse inherited motion. At the same time, the intensity of motion is decreased. |
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| Keywords: | seismic risk region vertical deformation inverse inherited motion the west of Sichuan |
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