【摘要】 2006年,通过对辽河盆地东部凹陷岩心的观察研究,在沙河街组发现了大量与地震活动有关的变形构造,如液化砂岩脉、角砾状构造、不协调岩块、液化卷曲变形构造、阶梯状小断层等。通过对牛18、牛22、台3、台10、龙9等井的系统观察,发现震积岩的分布和震积特征的强烈程度与区域的断裂构造活动有密切的关系。辽河盆地震积岩的发现不但有助于判断控盆边界断裂的强烈活动时期,而且震积岩自身也可能是一种潜在的油气储集体。此外,通过对震积岩的研究,还可以更多地了解古代地震发生的规律,为人类预测地震活动提供有利证据。更多还原

【Abstract】 Core observation in the eastern depression of Liaohe Basin in 2006 had discovered many earthquake-related deformation structures in Shahejie formation, such as liquefied sandstone veins, brecciated structure, discordant rocks, liquefied curled deformation structure, and multiple minor faults. Systematic observation on Well Niu18, Niu22, Tai3, Tai10 and Long9 indicates that the distribution of seismite and the intensity of earthquake deposit were closely related to regional faulting movements. The discovery of seismite is helpful to identify the intense moving stage of basin-controlling boundary faults, and the seismite itself may also be a potential hydrocarbon reservoir. In addition, seismite study can provide more about ancient earthquake and provide evidence for present earthquake forecasting.更多还原