| 中国大陆地壳的应变应力场研究 |
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| 引用本文： | 郭良迁,黄立人.中国大陆地壳的应变应力场研究[J].华北地震科学,2000,18(3):50-58. |
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| 作者姓名： | 郭良迁 黄立人 |
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| 作者单位： | 中国地震局第一地形变监测中心,天津,300180 |
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| 基金项目： | 中国地震局科技攻关项目，95-04-07-06-04， |
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| 摘 要： | 根据全国ＧＰＳ网１９９４年和１９９６年两期测量结果，研究了中国大陆地壳现阶段的水平形变应力场。结果显示，西部青藏块体与新疆块体主压应力场为近南北至北 北东向，而南北地震带以东、长江以及北地区为北东东至近东西向，华南块体上为北 北西至北西向，与滑线场理论模型基本吻合。反映出中国大陆地壳变形的压应力主要来自印度板块与欧亚板块的俯冲碰撞。而太平洋板块与菲律宾板块对欧亚板块的作用力以及地幔向上的作用力总体
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| 关 键 词： | 水平形变 应变 GPS 应力场 中国 大陆 地壳 |
| 修稿时间： | 1999-10-02 |
STUDY ON CRUSTAL STRAIN AND STRESS FIELDS IN CHINA CONTINENT |
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| Guo Liangqiang,Huang Liren.STUDY ON CRUSTAL STRAIN AND STRESS FIELDS IN CHINA CONTINENT[J].North China Earthquake Sciences,2000,18(3):50-58. |
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| Authors: | Guo Liangqiang Huang Liren |
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| Abstract: | Based on two periods of observad data obtained in 1994 and 1996 from the national GPS network,the current horizontal crustal deformation stress field in China Continent has been studied in the paper.The results show that the principal compressive stress field for Qinghai Tibet block and Xinjiang block in the west is nearly in the trend of SN to NNE,for the area on the east of SN seismic zone and on the north of Changjiang River is NE to approximate EW and for South China block is NNW to NW,which are basically consistent with the theoretical model of slide line field.It has reflected that the compressive stress of crustal deformation in China Continent comes mainly from the underthrust collision of Indian plate and Eurasia plate,while the force from Pacific plate and Philippine plate towards Eurasia plate and the upwards force from the mantle have taken a secondary position.The development and the occurrence of an earthquake might be related to the distorted area.The horizontal deformation also indicates that Indian plate has driven northwards by a value of 49.8mm/a. |
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| Keywords: | horizontal deformation strain stress field China Strain analysis |
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