论文部分内容阅读
郯庐断裂带潍坊—嘉山段全新世活断层由三个独立的破裂段组成。从各段的断错地貌、松散堆积物特征、断层本身的特点以及断层泥的显微构造标志看,各段具有共同的特点,就是主要以粘滑运动为主,并在震后有蠕滑调整运动。各段具有断层闭锁→粘滑发震→震后调整→断层再次闭锁的发震模式。目前莒县—郯城段仍处于震后调整阶段,而安丘段和新沂一泗洪段则已处于断层闭锁的后期阶段,面临粘滑发震的危险
The Weifang-Jiashan section of the Tan-Lu fault zone consists of three separate fractures. From the sections of the fault landform, the characteristics of loose deposits, the characteristics of the fault itself and the microscopic structure of the mud mark, the sections have the common characteristics that is mainly stick-slip movement, and after the earthquake there is a slippery Adjust the movement. Each section has fault locking → stick-slip earthquake → post-earthquake adjustment → fault again locked mode. At present, the Shexian-Yuncheng segment is still in the post-earthquake adjustment phase, while Anqiu segment and Xinyi-Sihong segment are in the late stage of fault blockage, facing the danger of stick-slip earthquake