| 松散堆积物中活断层的破裂位移形式及其对确定古地震破裂时间的意义 |
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| 引用本文： | 侯建军,梁海华,郑文涛,董文忠.松散堆积物中活断层的破裂位移形式及其对确定古地震破裂时间的意义[J].地球科学,1995,4(6). |
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| 作者姓名： | 侯建军 梁海华 郑文涛 董文忠 |
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| 作者单位： | 北京大学地质学系 |
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| 基金项目： | 北京大学青年科学基金,地震科学联合基金 |
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| 摘 要： | 活断层作用产生的地震破裂，曾使地表产生破裂变形，地面建筑物遭到严重破坏，但由于第四纪松散沉积物变形方式复杂，破裂形迹往往不清晰或不显示，使得在探糟剖面上很难发现这些破裂作用的上部形迹。通过研究不同松散沉积层中断层破裂位移的形式，从宏观、细观与微观相结合的角度，初步探讨了探槽剖面上确定古地震破裂时间的标志与方法。
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| 关 键 词： | 活动断层，破裂位移，探槽剖面，松散物质，第四纪。 |
FRACTURING AND DISPLACEMENT TYPES OF ACTIVE FAULTS IN UNCONSOLIDATED ACCUMULATIVE MATERIALS AND THEIR IMPLICATION TO TIMING OF PALEOSEISMIC RUPTURE EVENTS |
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| Hou Jianjun ,Liang Haihua Zheng Wentao Dong Wenzhong.FRACTURING AND DISPLACEMENT TYPES OF ACTIVE FAULTS IN UNCONSOLIDATED ACCUMULATIVE MATERIALS AND THEIR IMPLICATION TO TIMING OF PALEOSEISMIC RUPTURE EVENTS[J].Earth Science-Journal of China University of Geosciences,1995,4(6). |
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| Authors: | Hou Jianjun Liang Haihua Zheng Wentao Dong Wenzhong |
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| Abstract: | Seismic rupture produced by active faulting made groud surface fracturing and building seriously destroying. However, the fracturing traces are usually indistinct or invisible because of complicated deformations in Quaternary unconsolidated materials, and the up-parts of fracturing traces are hard to be discovered on exploratory trench, Therefore, the paper researches the types of fault rupture and displacement in different loose deposit beds in the view of a synthetical studies of mega-, meso-and micro-scopes, and approaches distinguish signs and timing of paleoseismic rupture on exploratory trench. |
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| Keywords: | active fault fracturing and displacement exploratory trench unconsolidated material Quaternary |
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