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根据人们对板缘地震填空的认识,本文用震级—断层长度的经验关系式分析了我国郯庐断裂带、张家口—烟台断裂带、鲜水河和塔里木盆地北缘等断裂带的地震活动与地质构造的关系。指出在板块内部同样存在着地震沿带逐渐“填满补齐”的现象。这种地震填空,主要发生在那些扭压型和剪滑型的断裂带上。一个基本连续的活动断裂带是板内地震填空所必需的地质条件。作者认为,板内地震填空与断层现代运动的不同型式(或状态)密切相关。一个活动断裂带由稳滑、相对闭锁到破裂位错正是地震空区形成、发展直至发生大地震的带内地震填空过程,与此相应的应变积累段、闭锁段和释放松动段在地质上的差别是:断面上新沉积物覆盖程度依次减小,断层泥粘结度逐次降低而其厚度依次增厚,因而对于那些全新世以来有过活动而断面上新沉积物覆盖较大的一类活断层尤应引起注意。
Based on the people’s knowledge about the fill-in of the slab margin, this paper analyzes the seismic activity and geological structure of the fault zones in the Tan-Lu fault zone, the Zhangjiakou-Yantai fault zone, the Xianshuihe and the Tarim Basin, using the empirical relationship between magnitude and fault length Relationship. It is also pointed out that there is also a phenomenon of “fill up” along the belt along the belt within the same plate. This type of seismic fill-in occurs mainly in the twist-shear and shear-slip faults. A basically continuous active fault zone is a necessary geological condition for intra-plate seismic fill-in. The authors believe that the intra-plate seismic fill-in is closely related to the different types (or states) of modern fault movement. It is the formation and development of the seismic zone that the stable and relatively locked-out active fault zone is stable until the occurrence of a large earthquake, and the corresponding strain accumulation section, lockout section and release loosening section are geologically The differences are as follows: the coverage of new sediments in the section decreases in turn, the fault mud adhesion gradually decreases and the thickening of the thicknesses in turn, so for those who have been active since the Holocene and section of the new sediment cover a larger category The active fault should pay particular attention.