安徽省嘉山县明光镇北郊,有断续出露或揭露的长约1公里,宽约15—20米的近水平的疏松地层(图1).在地层中发现一些砂砾脉或砂砾柱(砂砾筒)及小断裂.上述构造被怀疑是地震造成的,曾经多次现场观察和讨论,但认识分歧,作者做了短暂的野外观察,结合已有资料,对上述构造提出新的认识,以便共同讨论. In the northern suburbs of Mingguang Town, Jiashan County, Anhui Province, intermittent exposures or revelations of nearly 1 km long and 15-20 m wide near-horizontal loose formations are shown (Figure 1). Some gravelly veins or gravel columns Gravel tube) and small faults. The above structure was suspected to be caused by earthquakes and had been observed and discussed on site many times. However, with disagreement, the author made brief observations in the field and combined with the available data to come up with a new understanding of the above structure so that Discuss together.