Preliminary Analysis of Tectonic Deformation Phenomena in Some Archaeological Sites in Shandong Province

摘要

Earthquake archaeological research was conducted in recent years at four archaeological excavation sites in Shandong,focusing on the identification and analysis of the tectonic deformation phenomena. The non-tectonic deformation phenomena were distinguished at the site of the Shang Dynasty ruins at Daxinzhuang in the Jinan suburbs. In Longshan,sand vein-filled cracks were recognized in the cultural layers of the Chengziya site,Zhangqiu City. Sand veins on the trench wall and sand tubes at the trench bottom were found densely distributed at the Shang and Zhou Dynasty cultural layers,at Qinhuangtai site,Binzhou City. The tectonic and non-tectonic origin cracks were identified on the city wall of the Site of Capital of State Qi,Linzi City. In Rizhao city,parallel distributed sand vein fracture groups were found in the cultural layer of Longshan-Warring States-Han Dynasty at Yaowangcheng site. Typical conjugate shear fractures were identified on the city wall of the ancient city of the State of Xue, Tengzhou City. The above natural deformation phenomena are concentrated in the culture layers of the Spring and AutumnWarring States-Han Dynasties and before, and characterized by seismic sand-soil liquefaction traces,which indicate that these regions might have been in the seismic active episodes in the corresponding periods. The above inference has been confirmed by microscopic data analysis.