摘要
通过分析二连盆地与大兴安岭的地球动力学背景和构造演化史认为,二连盆地与大兴安岭符合盆山耦合体系的基本条件,因此将二连盆地划入大兴安岭岭西盆山耦合体系。在盆山耦合体系的控制下,塑造了多凸多凹的构造景观,各湖盆具有独立的沉积体系,形成近物源、多物源、粗碎屑的沉积特征。通过分析不同凹陷的沉积模式,从盆山耦合的角度解析二连盆地构造和沉积的关系,明确二连盆地沉积体系分布规律,为下一步勘探工作提供理论依据。
Analysis of geodynamics and structural evolution for the Erlian Basin and the Daxing'anling Mountains shows that they are eligible to the basic conditions of the basin-mountain coupling system,therefore the Erlian Basin is classified as the West Daxing'anling basin-mountain coupling system.The basin-mountain coupling system had generated a structural landscape of multi-concave and multi-convex,with each lake basin having independent sedimentary system,characterized by multi-source,near source and coarse clastic sedimentary features.Based on analysis of different depositional models of each depression,the relationship between structure and sedimentation in the Erlian Basin is analyzed in terms of basin-mountain coupling,the distribution of depositional system is presented,thus provided theoretical basis for further exploration.
出处
《特种油气藏》
CAS
CSCD
2011年第3期60-63,138,共4页
Special Oil & Gas Reservoirs
基金
中石化海相前瞻性研究项目"中国北方晚三叠-新近纪岩相古地理研究与编图"(yph08056)
关键词
盆山耦合
凹陷模式
沉积特征
沉积体系
大兴安岭
二连盆地
basin-mountain coupling
depressed mode
sedimentary feature
depositional system
Daxing'anling
Erlian Basin
