| 孝丰—三门湾断裂广德—杭州段第四纪活动性研究 |
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| 引用本文： | 陈涛,宋方敏,余刚群,杨福平.孝丰—三门湾断裂广德—杭州段第四纪活动性研究[J].中国地震,2023,39(2):346-355. |
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| 作者姓名： | 陈涛 宋方敏 余刚群 杨福平 |
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| 作者单位： | 浙江省地震局, 杭州 310013;中国地震局地质研究所, 北京 100029 |
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| 基金项目： | 浙江省地震局科技创新团队浙江省深部构造环境研究项目资助 |
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| 摘 要： | 孝丰—三门湾断裂是浙江地区一条规模较大的NW向断裂,该断裂与萧山—球川断裂交汇处曾发生929年杭州5 1/4级地震,与余姚—丽水断裂交汇处曾发生1998年嵊州—新昌4.5级地震。研究认为孝丰—三门湾断裂广德—杭州段大致以苏州—安吉断裂和湖州—临安断裂为界,分为广德—安吉段、安吉—黄湖段和黄湖—瓶窑段,活动性质为正断层,倾向NE。通过野外地质地貌调查和ESR年龄样品测年认为,该断裂最新活动时代为中更新世晚期。
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| 关 键 词： | 孝丰—三门湾断裂 广德—杭州段 分段性 正断层 中更新世晚期 |
| 收稿时间： | 2022/11/2 0:00:00 |
| 修稿时间： | 2023/1/4 0:00:00 |
Quaternary Activity along the Guangde-Hangzhou Section of the Xiaofeng-Sanmenwan Fault |
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| Chen Tao,Song Fangmin,Yu Gangqun,Yang Fuping.Quaternary Activity along the Guangde-Hangzhou Section of the Xiaofeng-Sanmenwan Fault[J].Earthquake Research in China,2023,39(2):346-355. |
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| Authors: | Chen Tao Song Fangmin Yu Gangqun Yang Fuping |
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| Institution: | Zhejiang Earthquake Agency, Hangzhou 310013, China;Institute of Geology, China Earthquake Administration, Beijing 100029, China |
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| Abstract: | The Xiaofeng-sanmenwan fault is a large-scaled NW trending fault in Zhejiang Province,The M5 1/4 Hangzhou earthquake of 929CE and the M4.5 Shengzhou-Xinchang earthquake of 1998 occurred at the intersection of the Xiaoshan-Qiuchuan fault and the Yuyao-Lishui fault. In this paper,the Guangde-Hangzhou segment of Xiaofeng-Sanmenwan fault in the is divided into the Guangde-Anji segment,the Anji-Huanghu segment and the Huanghu-Pingyao segment by the Suzhou-Anji fault and the Huzhou-Lin''an fault,characterized by normal fault. Based on field geological survey and the ESR dating result,it is concluded that the latest active time of the fault is in late Middle Pleistocene. |
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| Keywords: | Xiaofeng-Sanmenwan fault Guangde-Hangzhou section Segmentation Normal fault Late middle pleistocene |
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