基于浅层地震勘探的滹沱河断裂第四纪活动性研究
Study on the Activity of the Hutuohe Fault in Quaternary Based on Shallow Seismic Exploration
彭远黔 1高武平 2冉志杰 1王红蕾 1朱坤静 3张安东 2王志胜2
作者信息
- 1. 河北省地震局,石家庄 050021
- 2. 天津市地震局,天津 100081
- 3. 邯郸市地震监测中心,河北 邯郸 056002
- 折叠
摘要
通过浅层地震勘探,结合标准钻孔、区域钻孔联合剖面、周边石油物探剖面以及断裂构造等资料,对滹沱河断裂的第四纪活动性开展研究.浅层地震勘探揭示,滹沱河断裂错断多套第四纪地层,为倾向NE的正断层,视倾角约 80°,可识别的上断点埋深为 92m以浅,下更新统底界的垂直错距为 13 m;结合该区域第四系地层划分结果,初步认为断裂最新活动时代为早更新世晚期.
Abstract
In this paper,the Quaternary activity of the Hutuohe Fault is studied by shallow seismic exploration,combined with standard borehole,regional borehole section,petroleum geophysical profile and fault structure.Shallow seismic exploration reveals that the Hutuohe Fault is a normal NE-trending fault with a dip angle of about 80°.The discernible upper fault point is buried in a shallow depth of shallower than 92 m and the vertical offset at the lower Pleistocene bottom boundary is 13 m.According to the stratigraphic division of the Quaternary in this area,the latest active age of the fault is considered to be late Early Pleistocene.
关键词
石家庄凹陷/滹沱河断裂/浅层地震勘探/晚第四纪活动Key words
Shijiazhuang depression/Hutuohe Fault/shallow seismic exploration/late Quaternary activity引用本文复制引用
出版年
2024
NETL
NSTL
万方数据