饶阳凹陷任丘地区沙三段震积岩的发现及地质意义

The Discovery and Geological Significance of Seismite in Renqiu Area S3 Stratum of Raoyang Depression

震积岩是指具有古地震灾变事件记录的岩层的总称。通过岩芯观察和描述,在饶阳凹陷任丘地区沙三段地层中发现大量的软沉积物变形构造,通过分析认为具有震级岩特征。根据软沉积物变形构造的不同类型,逐一阐述了典型识别标志,同时总结了震级岩垂向分布序列,并对其地质意义进行了初步探讨。

Seismites is the general term that describes rock stratum that can record the ancient earthquake disaster events.According to the cores observing and describing,we found a large number of softsediment deformational structures in Renqiu area s3 stratum of Raoyang depression,it shares the characteristics of seismites through analysising.According to the different types of soft sediment deformation structures,we expound the typical identification marks one by one and conclude the vertical sequence of seismites.At the same time we preliminary discussed its geological significance.