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千佛山断裂是济南市的一条重要隐伏断裂,研究该断裂的具体位置,断裂展布以及断裂的活动性具有重要意义。本文利用遥感技术、地球物理勘探(CT)、地质勘察等综合地质与地球物理探测手段,对该断裂地形地貌特征、地质构造特点、地层年代进行研究,分析其地震活动性。结果表明该断层中更新世早中期以来没有明显的活动证据,该断层的活动年代为早更新世-中更新世早期。千佛山断裂的运动性质以张性正断层为主,兼有左旋走滑运动的特点。从断层的几何结构分析,中更新世早中期以前断层经历了多期活动。
The Qianfoshan fault is an important hidden fault in Jinan City. It is of great significance to study the specific location of the fault, the fracture distribution and the fracture activity. In this paper, the use of remote sensing technology, geophysical exploration (CT), geological surveys and other integrated geophysical and geophysical exploration methods, the characteristics of the fracture topography, geological structure characteristics, stratigraphic age to study and analyze its seismicity. The results show that there is no obvious evidence of activity in this fault since the early and middle Pleistocene. The fault’s active age is Early Pleistocene-Early Middle Pleistocene. The movement of the Qianfoshan fault is dominated by the Zhangxingzheng fault, which is characterized by left-lateral strike-slip movement. From the fault geometry analysis, the mid-early Pleistocene faults underwent multi-period activities.