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本文根据青岛市活断层探测与地震危险性评价项目初查阶段第四纪地层分析、遥感影像解译、地球化学探测、地质地貌调查与探槽开挖、浅层地震勘探与钻孔探测、地质年代测定等获得的丰富的第一手资料,对青岛沧口断裂的地质构造特征和第四纪活动性进行了详细分析与综合研究,结果表明:沧口断裂经历多期构造变动,是本区的重要断裂之一,它由多支断层组成,控制了中生代的火山活动、盆地沉积和岩浆侵入以及晚第四纪的盆地沉积、山体隆升和水系发育;第四纪以来,沧口断裂的主要活动发生于中更新世晚期至晚更新世早期,表现出中高角度向南东倾的逆冲活动特点,错断了上更新统底面1—6m,而最新活动时代为晚更新世中期,以走滑活动为主,垂直错距0.2—1.1m。
Based on the analysis of Quaternary stratigraphy, interpretation of remote sensing images, geochemical exploration, geology and geomorphology investigation and trench excavation, shallow seismic exploration and drilling exploration, geological survey of active fault and seismic hazard assessment project in Qingdao city Dating and dating. The geological structure and Quaternary activities of the Cangkou fault in Qingdao are analyzed and comprehensively studied. The results show that the Changkou fault undergoes multi-period tectonic movements and is the region It consists of several faults that control the Mesozoic volcanic activity, basin sedimentation and magma intrusion and late Quaternary basin sedimentation, uplift of mountain and development of water system. Since the Quaternary, The main activity took place from late mid-late Pleistocene to early late Pleistocene, showing a south-easterly thrusting event at mid-high angle, dislocating the Upper Pleistocene basement 1-6m, and the latest activity was mid-late Pleistocene Mainly slippery activities, the vertical offset 0.2-1.1m.