摘要
为了提高走滑构造的研究程度,将济阳坳陷东部作为一个整体,应用构造解析方法,研究其走滑构造的形态、分类、组合形式及形成期次并探讨了其成因机制。结果表明,济阳坳陷东部走滑断层分深层次和浅层次2种。深层次断层剖面上呈花状构造和复式Y字形,平面上具有主位移带,并有伴生构造;浅层次断层剖面上呈阶梯状,平面上无主位移带,呈雁列状,伴有半背斜。走滑断层的形成主要受控于郯庐断裂的活动,主要形成时期为燕山期和喜马拉雅期,现今断层是在2期应力场机制下逐步发育演化的结果。
The geometry (type, classification, assemblage) , forming period-times and genesis mechanism of the strike-slip structures in the eastern Jiyang Depression have been researched in this paper using structural analytic method to gain more knowledge of the strike-slip structures. The strike-slip faults in the eastern Jiyang Depression are divided into base-typed and cover-typed strike slip faults. The base-typed strike-slip faults are of flower structures and multiply Y type in the profile, and main disturbed belts and associated structures in the plane,while the cover-typed strike-slip faults are of no main disturbed belts and ladder shaped structures in the profile, and echelon shape with semi- anticlines. The development of the strike-slip faults in the area were controlled by the movement of the Tancheng-Lu-jiang Fault, whose main formation periods were Yanshan period and Himalaya period. Current faults are the result of gradual evolution under stress field mechanism for two periods.
出处
《油气地质与采收率》
CAS
CSCD
北大核心
2007年第5期42-45,共4页
Petroleum Geology and Recovery Efficiency
关键词
走滑构造
郯庐断裂
济阳坳陷东部
strike-slip structure, Tancheng-Lujiang Fault, eastern Jiyang Depression
