| 维西—乔后断裂北段晚第四纪活动的地质地貌表现 |
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| 关键词:Weixi–Qiaohou fault Late Pleistocene slip rate |
| 基金项目:国家自然科学基金项目(编号: U2002211);云南省地震局科技专项基金项目(编号: 2022ZLZX01) |
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| Geological and Geomorphological Features of Late Quaternary Activity in the Northern Segment of Weixi–Qiaohou Fault |
| The Weixi–Qiaohou fault located at the borders zone of the Tibetan and Yunnan–Guizhou plateaus is a large-scale active fault on the southeast margin of the Tibetan Plateau. Studying its neotectonic activity has considerable scientific importance for understanding the tectonic framework and movement of the Chuan–Dian block. In this study, the movement and sliding rate of the northern segment of the fault are described mainly based on the results of detailed field geological and geomorphic investigations. The research results have provided geological evidence of Late Pleistocene activity at Baijixun, Weixi County, and Zhaniluo, which is highly indicative of Late Quaternary activity. This segment movement is mainly dominated by dextral slip, with a horizontal slip rate of 1.0–1.2 mm/a and a vertical slip rate of 0.3–0.4 mm/a according to the terrace distortion and scarps. |
| LI Jianlin,CHANG Zufeng,Alata.2024.Geological and Geomorphological Features of Late Quaternary Activity in the Northern Segment of Weixi–Qiaohou Fault[J].Acta Geoscientica Sinica,45(3):309-319. |
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