| 华山北麓断层崖与大地震重复周期分析 |
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| 引用本文： | 程谦恭.华山北麓断层崖与大地震重复周期分析[J].地球科学与环境学报,1988(4). |
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| 作者姓名： | 程谦恭 |
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| 摘 要： | 本文应用断层崖的地貌学研究方法,详细地论述了华山北簏断裂断层崖特征。通过断层崖坡折点、冲沟裂点、阶地以及断层崖上残留的砾石层等相互对比,估计了断层崖的年龄、大震重复周期及断层活动的幅度。结果表明,断层崖地貌学方法所确定的地震重复周期与渭河盆地历史记载强震复发周期相吻合。
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| 关 键 词： | 华山北麓 断层崖 剖面测量 强震周期 |
AN ANALYSIS OF FAULT SCARPS ON NORTH HUASHAN MOUNTAIN FRONT AND THE RECURRENCE INTERVALS OF LARGER EARTHQUAKES |
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| Cheng Qiangong.AN ANALYSIS OF FAULT SCARPS ON NORTH HUASHAN MOUNTAIN FRONT AND THE RECURRENCE INTERVALS OF LARGER EARTHQUAKES[J].Journal of Earth Sciences and Environment,1988(4). |
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| Authors: | Cheng Qiangong |
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| Institution: | Xi'an College of Geology |
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| Abstract: | On the basis of a lot of profile measurements of the fault scarps and gui-lie son the north foot of the Huashan Mountain, this article expounded the geomor-phological characteristics of the scarps in details.Through contrasting the slope broken points on scarps with nickpoints and terraces in gullies as well as the gravel layers remained on the fault triangular facet, the writer estimated the ages of the scarps, the recurrence intervals of larger earthquakes and the amplitudes of the fault activity.The results show that the recurrence intervals determined by means of the geomorphology method of the fault scarps are in accord with the strong earthquake periods recorded in the history of the Weihe basin. |
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| Keywords: | North Huashan Moutain foot fault scarps profile measurement recurrence interval |
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