| 安徽霍山地区断层活动习性研究的新进展 |
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| 引用本文： | 姚大全,张杰,沈小七.安徽霍山地区断层活动习性研究的新进展[J].地球物理学进展,2006,21(3):776-782. |
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| 作者姓名： | 姚大全 张杰 沈小七 |
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| 作者单位： | 安徽省地震局，合肥 230031 |
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| 基金项目： | 地震科学联合基金课题(102038)，安徽省自然科学基金(01045403)资助 |
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| 摘 要： | 通过霍山地区地震地质调查和研究，发现晚第四纪以来该地区丰富的构造变形现象：盆地边缘断裂构成断层三角面；隆起区发育一系列的北东向断裂，含断层泥；盆地内中更新统中发现多期变形遗迹，共同显示晚第四纪以来构造变形的继承性和统一性.文中结合各观测点变形物质的微观、超微观变形分析和断错物质系统测龄结果分析，对研究区构造新活动期次、断层滑移特性、古地震事件等进行了有意义的探讨.结果表明，该区断裂在晚第四纪曾有过多期粘滑活动.最后结合地震层析成像等深部探测成果对研究区地震的深部介质条件进行了讨论.
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| 关 键 词： | 霍山 晚第四纪 活动习性 地震事件 |
| 文章编号： | 1004-2903（2006）03-0776-07 |
| 收稿时间： | 2005-08-15 |
| 修稿时间： | 2005-11-20 |
New advance of fault active behavior research in huoshan area, anhui province |
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| YAO Da-quan,ZHANG Jie,SHEN Xiao-qi.New advance of fault active behavior research in huoshan area, anhui province[J].Progress in Geophysics,2006,21(3):776-782. |
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| Authors: | YAO Da-quan ZHANG Jie SHEN Xiao-qi |
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| Institution: | Earthquake Administration of Anhui Province, Hefei 230031 ,China |
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| Abstract: | By means of carrying out investigation and research of seismology and geology,in Huoshan area,Anhui Province,the author found abundant deformational phenomenon since the Later- Quaternary,which the fault of the basin edge constituted fault trigonal plane,a series of faults trending NE and including fresh gouge developed in ridgy area,local deformation occurred in the the Middle Pleistocene in the Huoshan basin.The current deformational relics of the faults show that tectonic deformation since the Later- Quaternary in the area has continuity and oneness.Based on micro- ultramicroscopic deformation analysis and systematic dating results of fault materials on different observation spots,the author discussed the identifications about the tectonic activity frequency,the sliding behavior and palaeoearthquake events.The results show that there are many times stick creep events have taken place in the area during the Later- Quaternary.Combining with results of deep detection such as seismic tomography,the author carried out discussion of the deep medium conduction of the earthquake in the research area at last. |
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| Keywords: | huoshan later-quaternary active behavior seismic event |
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