摘要
依据方正断陷新采集的三维地震资料确认，方正断陷发育拉张或张扭、挤压或压扭、走滑3种断层类型，形成地垒式、地堑式、阶梯状、Y字形或多级Y字形、叠瓦状、对冲式、正花状、负花状8种断层组合以及伸展、挤压、走滑、反转4种构造样式。在此基础上，分析了断层组合和构造样式的成因机制、分布特征，为进一步研究方正断陷构造格局、构造演化和预测有利含油构造类型与分布奠定了基础。
According to the newly acquired 3D seismic data in the Fangzheng Rift, three kinds of fault types inclu- ding tensional or transtensional, compressional or eompressional-shear and stike-slip faults are well developed, thus eight types of fault combinations such as horst, graben, step, y-shaped, imbricated, hedge, positive flower and negative flower shapes are formed. And furthermore so do four kinds of structural styles ： stretched, compressional, strike-slip and reverse. On the basis of the above, the genetic mechanism and distribution characteristics of the fault assemblage and structure styles are analyzed. These achievements have laid the foundations for the further studies of tectonic framework, tectonic evolution and the prediction of the types and distributions of the favorable oil-bearing structures in the rift.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2012年第5期1-6,共6页
Petroleum Geology & Oilfield Development in Daqing
关键词
断层类型
断层组合特征
构造样式
方正断陷
fault type
fault assemblage characteristic
structure mode
Fangzheng Rift
