| 鄂尔多斯地块周缘地堑系形成机制及其地震活动性的实验研究 |
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| 引用本文： | 王春华,廖素琼.鄂尔多斯地块周缘地堑系形成机制及其地震活动性的实验研究[J].西北地震学报,1990,12(4):69-75. |
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| 作者姓名： | 王春华 廖素琼 |
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| 作者单位： | 国家地震局地质研究所,国家地震局地质研究所 |
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| 基金项目： | 地震科学联合基金资助课题 |
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| 摘 要： |
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| 关 键 词： | 地堑系 地震 活动性 应力场 形成 |
| 收稿时间： | 1989/12/19 0:00:00 |
THE EXPERIMENTAL STUDY ON THE SEISMIC ACTIVITY AND THE FORMATION MECHANISM OF GRABEN SYSTEM IN THE WESTERN PART OF NORTH CHINA |
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| Wang Chunhua and Liao Suqiong.THE EXPERIMENTAL STUDY ON THE SEISMIC ACTIVITY AND THE FORMATION MECHANISM OF GRABEN SYSTEM IN THE WESTERN PART OF NORTH CHINA[J].Northwestern Seismological Journal,1990,12(4):69-75. |
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| Authors: | Wang Chunhua and Liao Suqiong |
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| Institution: | Institute of Geology, SSB, Beijing, China and Institute of Geology, SSB, Beijing, China |
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| Abstract: | This paper deals with the application of deformation simulations and gravity analogy in the study of characteristic formation of graben system in the western part of North China. Experiments disclose that principal stress of the modern tectonic stress field of these graben systems is NEE-SW horizontal compression, and it is accompanied by additional vertically uplifting force from the lower crust and the upper mantle. The experimental results have confirmed that these graben systems are formed mainly due to the occurrences of tensile stress and shear stress on the axis of upheaval region of round edge of the Erdos block.In this paper, the seismicity here is analysed and studied, and the relation between the formation of graben system and seismicity is simulated using model experiment of laser holography photoelasticity. |
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