辽河盆地右行走滑构造运动新证据——基于岩样显微扫描电镜实验结果

依据7块岩样显微扫描电镜实验结果,报道辽河盆地早第三系东营期右行走滑构造运动的重要地质证据.认为辽河盆地早第三系东营期发生过右行走滑构造运动,裂谷后的右行走滑构造运动导致早期拉张断层系可以重新运动,并形成新的断层系.研究成果表明,右行走滑构造运动是辽河盆地复杂构造演化史中的主要地质事件之一,有效地控制了盆地中的断裂体系的格局.早第三系东营期右行走滑构造运动,影响和控制了盆地中油气的运移和聚集.

NEW PROOFS OF THE DEXTRAL STRIKE-SLIP MOVEMENT IN LIAOHE BASIN, CHINA:RESULTS FROM SEM EXPERIMENTS

On the basis of the Scanning Electron Microscopy (SEM) experiments for 76 samples, this paper presents important proofs related to the dextral strike slip movement of the Liaohe Basin, China during the Dongying phase of Late Eogene. The dextral strike slip movement of the Liaohe Basin occurred during the Dongying phase of Late Eogene. This movement occurred after rifting, and resulted in movement of older extensional faults as well as formation of new faults. The obtained results indicate that the dextral strike slip movement is one of major events throughout a complex history of the structural evolution in the Liaohe basin, and effectively controlled the array of the fault systems in the basin. This phase of the movement influenced and controlled oil and gas migration and accumulation in the basin.