鲁南新元古代一个地震活跃期的地震幕次组合序列  

Sequence of earthquake episodes and occurrences in a Neoproterozoic seismically active phase in southern Shandong, China

作　　者：王炳山[1] 张宪依[2] 梁兴泉 李金波 庞成宝 

机构地区：[1]山东科技大学,山东青岛266510 [2]中国地质大学,北京100083 [3]山东鑫国煤电责任有限公司,山东泰安271000 [4]山东省枣庄市地震局,山东枣庄277100 [5]山东鲁南地质工程勘察院,山东枣庄272100

出　　处：《地质通报》2007年第9期1198-1205,共8页Geological Bulletin of China

基　　金：山东省自然科学基金项目(编号:Y2006E04);中国石油化工股份有限公司重大项目(编号:G0800-07-ZS-164)资助。

摘　　要：地震灾变事件的直接证据是地层中留下的特殊的沉积记录——震积岩。鲁南地区新元古界石旺庄组底部发育的一套碳酸盐岩泥晶脉、液化卷曲变形构造、丘状层理、砾屑层等典型的地震-海啸震积岩序列,表明本区新元古代曾有过一个持续很长时间的地震活跃期。依据其沉积组合规律,可以识别出7个地震幕,30余次地震。造成这一地震灾变事件的主要原因是古郯庐断裂带的早期裂陷作用。The direct evidence of an earthquake hazard event is seismite--the special sedimentary record left： in strata. A typical seismite-tsunamite sequence consisting of carbonate mirite veins, liquefied curl deformation structure, hummocky bedding and rudaceous layers is developed at the base of the Neoproterozoic Shiwangzhuang Formation in the southern Shandong area, which suggests that a very long-continued seismically active phase occurred in the area in the Proterozoic. According to the characteristics of its sediment associations, 7 seismic episodes and more than 30 earthquakes may be distinguished. The main cause of this earthquake hazard event was the earth rifting of the ancient Tanlu fault zone.

关 键 词：鲁南 新元古界 地震灾变事件 震积岩 啸积岩 

分 类 号：P315.2[天文地球—地震学]