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举世闻名的我国郯庐断裂带,古往今来都是地质找矿、地震测量等工作的重要研究对象。该断裂究竟有无新活动呢?笔者曾在该断裂中南段的东海、新沂、宿迁县做过多年地质调研工作,积累了一些说明该段新构造活动迹象的资料。所谓新构造活动,一般泛指从新第三纪开始到现在的构造活动。就庐郯断裂带中南段而言,新构造活动迹象主要表现为断裂、地震、水系、沉积物、地貌要素等方面。由于以人往们对断裂和地震活动研究较多,这里姑且不谈。
The world-famous Tan-Lu fault zone in our country has been an important research object of geology prospecting and seismic survey since ancient times. Is there any new activity in the fault? The author has done many years of geological investigation and research in the East China Sea, Xinyi and Suqian in the middle section of the fault, and accumulated some information about the signs of the new tectonic activity in this section. The so-called new tectonic activity generally refers to tectonic activity from the beginning of Neogene to the present. As far as the middle and southern sections of Lushan fault zone are concerned, the signs of neotectonic activities are mainly faults, earthquakes, water systems, sediments and geomorphic elements. Due to the fact that there are many researches on the faults and seismicity, we will not talk about it here.