Feature and Formation Mechanism of the Quaternary Fault Plane at Xilingang, Foshan City

详细信息   

• 责任者：Dong Haogang (Wuhan Institute of Geology and Mineral Resources ; Wuhan 430003 ; China) ; Huang Changsheng
• 刊名：Seismology and Geology
• 出版年：2012
• 卷期：34(2)
• 关键词：断层面 ; fault planes ; 广东 ; Guangdong Province
• 页码：p.313-324
• 图表：6 illus., 13 refs.
• 分类号：0300
• issnNo：ISSN0253-4967
• isbnNo：CN11-2192/P

摘要

A Quaternary fault plane was found located at Chencun Town of Foshan City, which is thought as a Late Quaternary active fault by many researchers. To explain the formation mechanism of this fault plane, a series of work was carried out.  According to the analysis of the geomorphologic features, the contrast between bedrock fault and Quaternary fault, and the characteristics of shallow seismic reflection, there are few geomorphologic signs of recent tectonic activities. The displacement of Quaternary bottom and the rupture in the rocks were not formed in the same tectonic stress field, and the bedrock fault didn’t offset the Quaternary formation according to the shallow seismic reflection characteristics. Thus, a conclusion is drawn that the Xilingang Fault plane wasn’t generated by tectonic movement but the gravity inequilibrium.