The discovery of seismites in the Paleogene Zhubidian Formation of Anqiu gives some new materials for studying the active history of Yishu Fault Zone and regional stratigraphy.

• 安丘古近纪朱壁店组震积岩的发现，为研究沂沐断裂带的活动史及区域地层调研提供了新的实际资料。