摘要
营口—潍坊断裂带在新生代时期对渤海湾盆地东部构造、沉积及油气成藏规律等方面具有重要影响和控制作用。依据大量实际地震资料,从剖面上识别出了花状构造、丝带效应、反转构造等营口—潍坊断裂带新生代时期走滑活动的标志,在平面上识别出了4种组合构造样式,在此基础上,应用拉分盆地走滑量计算的理论模型,对营口—潍坊断裂带新生代时期的走滑位移量进行了初步估算,认为营口—潍坊断裂带在新生代时期具右旋走滑活动特征,其主要走滑活动表现为3期,分别为始新世早期、渐新世早—中期和上新世晚期—第四纪,新生代累计右旋走滑位移量约为10～20km。
Evolution of the Yingkou-Weifang fault zone in Cenozoic is of great significance for us to study structure, sedimentaion, hydrocarbon generation and accumulation in east Bohai Bay basin. On the basis of the analysis from geophysics data, the author systematically studies structural styles of the Tan Lu fault zone in Cenozoic. Six strike-slip marks and four combined structural styles were identified from seismic profiles and structural maps respectively. Yingkou-Weifang segment of the Tan-Lu fault zone is known to have experienced three main stages of dextral strike slide in Cenozoic through the comprehensive analysis, and the displacement of dextral strike-slip was 10-20 km.
出处
《海洋地质与第四纪地质》
CAS
CSCD
北大核心
2008年第4期57-64,共8页
Marine Geology & Quaternary Geology
关键词
构造样式
走滑时期
走滑位移
新生代
营潍断裂带
dextral strike-slip
structural style
strike slide
strike displacement
Cenozoic the Yingkou- Weifang fault zone
