| 曲江断裂南东段全新世滑动速率 |
| |
| 引用本文： | 荆振杰,刘凤香,张井飞,谢富仁.曲江断裂南东段全新世滑动速率[J].世界地质,2016,35(3):778-785. |
| |
| 作者姓名： | 荆振杰 刘凤香 张井飞 谢富仁 |
| |
| 作者单位： | 1. 中国地震局地壳应力研究所，北京 100085; 2. 中国地质博物馆，北京 100034 |
| |
| 摘 要： | 高精度SPOT卫星影像和野外地质调查表明,曲江断裂南东段断错山前冲沟及河流Ⅰ级和Ⅱ级阶地,在探槽中见到断裂断错全新世地层,是一条右旋走滑的全新世活动断裂,兼有逆冲性质,断裂的最新活动是1970年通海7.8级地震。对曲江断裂典型走滑断错地貌进行研究,曲江断裂南东段在五街一带水平滑动速率为(3.36±0.1)mm/a,白林山一带水平滑动速率为(3.21±0.3)mm/a。
|
| 关 键 词： | 曲江断裂 全新世活动 滑动速率 断错地貌 |
Holocene slip rate of southeastern segment of Qujiang fault |
| |
| JING Zhen-Jie,LIU Feng-Xiang,ZHANG Jing-Fei,XIE Fu-Ren.Holocene slip rate of southeastern segment of Qujiang fault[J].World Geology,2016,35(3):778-785. |
| |
| Authors: | JING Zhen-Jie LIU Feng-Xiang ZHANG Jing-Fei XIE Fu-Ren |
| |
| Institution: | 1． Institute of Crustal Dynamics，China Earthquake Administration，Beijing 100085，China; 2． Geological Museum of China，Beijing 100034，China |
| |
| Abstract: | The high- resolution digital SPOT images and field investigation show that the southeastern segment of Qujiang fault offset the youngest gullies and the I and II grade fluvial terraces． Qujiang fault is a Holocene active right- lateral strike- slip fault，along with some reverse component which offset the Holocene deposit in the trench． The latest activity event is the 7. 8 earthquake in Tonghai in 1970． Investigating typical landform offset by Qujiang fault，at the field of the Wujie and Bailinshan where is the southeastern segment of Qujiang fault，the right- lateral slip rate of this fault is (3. 36 ±0. 1) mm/a and (3. 21 ±0. 3) mm/a，respectively． |
| |
| Keywords: | Qujiang fault Holocene fault slip rate offset landform |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《世界地质》浏览原始摘要信息 |
| 点击此处可从《世界地质》下载免费的PDF全文 |
