| 皇城—双塔断裂带的几何分段及运动学特征 |
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| 引用本文： | 侯康明.皇城—双塔断裂带的几何分段及运动学特征[J].华南地震,1998,18(3):28-34. |
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| 作者姓名： | 侯康明 |
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| 作者单位： | 中国地震局兰州地震研究所 兰州 |
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| 基金项目： | 国家地震局合同制项目(95-04-10) |
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| 摘 要： | 在室内航，卫片解释及野外１：５万大比例尺活断层地质填图等专项研究的基础上，论证了１９２７年古浪８级大震主发震断裂皇城－双塔断裂带的几何分段及运动学特征。依据断层的几何特征，活动时期，活动强度可将该断裂带分为３段，分别为皇城盆地段（西段）、上寺段（中段）和冬青顶段（东段）。其中东段是古浪地震的发震段，与西段和中段相比，它具有活动时代新、活动强度大等特点，属全新世活动段。１９２７年古浪地震的发生与其特
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| 关 键 词： | 断裂带 发震断裂 活断层 几何分段 运动学 地震 |
THE GEOMETRIC SEGMENTATION AND KINEMATICS CHARACTERISTICS OF HUANGCHENG-SHUANGTA FAULT ZONE |
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| Hou Kangming.THE GEOMETRIC SEGMENTATION AND KINEMATICS CHARACTERISTICS OF HUANGCHENG-SHUANGTA FAULT ZONE[J].South China Journal of Seismology,1998,18(3):28-34. |
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| Authors: | Hou Kangming |
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| Abstract: | We have demonstrated the geometric segmentation and kinematics characteristics of Huangcheng -Shuangta fault zone, in terms of the fieldwork, combined with analysis of aerial photographs and satellite images. According to the fault geometric characteristics, active period, as well as active intensity, the Huangcheng-Shuangta active fault zone, which is the main seismogenic fault of 1927 Gulang great earthquake, can be divided into three segments, they are , respectively, Huangcheng basin segment (western segment), Shangsi segment (middle segment), and Dongqing Ding segment (eastern segment) . The Dongqing Ding fault segment is the seismogenic fault segment of 1927 Gulang earthquake. It has characteristics of the young active age and strong activities, compared with that of the western and middle segments. It was a Holocene fault. Therefore, we consider that the occurrece of Gulang earthquake has its special structure dynamic environment. |
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| Keywords: | Fracture zone Triggering seismic fault Active fault Geometric segmentation |
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