地震地磁观测与研究2023，Vol.44Issue(5)：10-17,8.DOI:10.3969/j.issn.1003-3246.2023.05.002
垭都—紫云断裂带么站断层探测及晚第四纪活动特征
Detection and late Quaternary activity characteristics of Yaozhai fault in the Yadu-Ziyun fault zone
摘要
Abstract
The Yadu-Ziyun fault zone is the most active fault zone in western Guizhou and has been active since Quaternary.Many studies have been made on the active age and geometric structure of the Yadu-Ziyun fault zone,but most of them focus on the exposed fault zone,and there is no research on the hidden fault zone.This paper mainly uses field geological survey,shallow seismic exploration,borehole combined geological section,and other deep,shallow,and surface three-dimensional multi-level research methods to analyze the geometric characteristics of the Yadu-Ziyun fault zone and the relationship between deep,shallow,and surface structures,so as to fill the research gap in the activity characteristics of the hidden area of the Yaozhai fault zone in the Yadu-Ziyun fault zone.The research results show that the buried depth of the Yaozhai fault is relatively shallow,the fault characteristics are mainly left-lateral strike-slip,and the shallow seismic exploration section shows that the fault is a normal fault.However,due to the lack of SEM,TL,and OSL dating,the latest activity age of the fault cannot be judged temporarily.However,according to the comprehensive geological,remote sensing,and shallow survey data,the probable latest activity age is the late Middle Pleistocene-early late Pleistocene(Q2-Q3).关键词
么站断层/浅层地震勘探/遥感解译/联合钻孔/断层活动性Key words
Yaozhai fault/shallow seismic exploration/remote sensing interpretation/combined drilling/fault activity引用本文复制引用
邱鹏,郑宇,王家海..垭都—紫云断裂带么站断层探测及晚第四纪活动特征[J].地震地磁观测与研究,2023,44(5):10-17,8.基金项目
贵州省地震局地震科技基金项目(项目编号:[2023]03号) （项目编号:[2023]03号）
六盘水市活动断层探测项目(项目编号:黔科合支撑[2020]4Y053号) （项目编号:黔科合支撑[2020]4Y053号）
