摘要
四川盆地北部受东北部大巴山和西北部龙门山的逆冲推覆作用,其地质构造相当复杂。通过对大巴山横向构造式样、剖面构造式样、龙门山地面构造、地腹构造特征分析,总结了四川盆地北部地区的基本构造特征。在构造运动、陆源碎屑物源及沉积充填特征等分析基础上,对龙门山造山带与龙门山前陆盆地盆山耦合关系进行了研究。得出了龙门山及其前陆盆地存在良好的耦合关系。对深入认识四川盆地构造与油气分布规律具有重要意义。
North Sichuan Basin is structurally very complicated as affected by the thrust napping effect of the Da- ba Mountain in the northeast and the Longmen Mountain in the northwest of Sichuan Basin.Basic structural fea- tures in North Sichuan Basin are generalized through analysis of the lateral and vertical structural style of the Da- ha Mountain,and the surface and subsurface structure of the Longmen Mountain.The basin - mountain coupling relationship of Longmen orogenic belt and foreland basin is studied based on analysis of tectonic movement,land clastic sources and fill characteristics.It is found that there exists a good coupling relationship between Longmen Mountain and its foreland basin.This is of important meaning to deep understanding of the structure of Sichuan Basin and oil and gas distribution.
出处
《特种油气藏》
CAS
CSCD
2008年第4期24-27,共4页
Special Oil & Gas Reservoirs
基金
四川石油管理局地球物理勘探公司项目“龙门山造山带北段构造模式及前陆盆地构造-沉积体系演化研究”(2005KY002)
关键词
构造特征
造山带
构造式样
前陆盆地
盆山耦合
四川盆地
大巴山
龙门山
structural feature
orogenic belt
structure style
foreland basin
basin-mountain coupling
Sichuan Basin
Daba Mountain
Longmen Mountain