| 昌马断裂带活动构造地貌之研究 |
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| 引用本文： | 康来迅.昌马断裂带活动构造地貌之研究[J].地理研究,1989,8(2):35-43. |
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| 作者姓名： | 康来迅 |
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| 作者单位： | 甘肃省地震局 |
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| 摘 要： | 本文根据野外地质调查资料和人工探槽的剖折,并结合14C年龄数据,讨论了昌马活动断裂带晚更新世晚期以来形成的构造地貌的类型、特征及分期问题.
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| 关 键 词： | 活动构造地貌 断层崖 活动构造地貌分期 |
| 收稿时间： | 1986-11-24 |
| 修稿时间： | 1988-03-06 |
RESEARCHES ON THE ACTIVE TECTONIC LANDFORMS OF CHANGMA FAULT ZONE |
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| Kang Laixun.RESEARCHES ON THE ACTIVE TECTONIC LANDFORMS OF CHANGMA FAULT ZONE[J].Geographical Research,1989,8(2):35-43. |
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| Authors: | Kang Laixun |
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| Institution: | Seismological Bureau of Gansu Province |
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| Abstract: | There are varied kinds of the active tectonic landforms in the Changma Fault Zone,including tension fault scarp,pressure fault scarp,landslid, drumlin, earthquake fissure, disintegration deformation of terrace and left slip displacement deformation of mountain ridge and water system and so on.Through analyzing the features of these landforms and comparing with each other, the active kind of Changma Fault Zone can be determined to be left strike slip accompanying with dip slip movement and there have been at least three times of sudden faulting or earthquake events since the later period of the late pleistocene.Those 3 earthquakes resulted in the formation of 3 stages of active tectonic landforms in Changma Fanlt Zone.According to the trench material and the 14C data, the geolgical dates for the 3 stages of active tectonic land forms are follows.Ⅰ<24450±310yr, 5095±85yr<Ⅱ<Ⅰ, and Ⅲ was produced by the earthquake of 1932. |
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| Keywords: | active tectonic landform fault scarp division of stage about active tectonic landforms |
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