The characteristics of Quaternary activity of faults in the sea area near the Yangtze River mouth  

作　　者：ZHANG Zhen-quan(章振铨) HUO En-jie(火恩杰) LIU Chang-sen(刘昌森) WANG Feng(王锋) 

机构地区：[1]Earthquake Administration of Shanghai Municipality, Shanghai 200062, China Earthquake Administration of Shanghai Municipality, Shanghai 200062, China Earthquake Administration of Shanghai Municipality, Shanghai 200062, China Earthquake Administration of Shanghai Municipality, Shanghai 200062, China

出　　处：《Acta Seismologica Sinica(English Edition)》2004年第4期473-479,共7页

摘　　要：By shallow seismic prospecting, it is showed that the faults in the sea area near the Yangtze River mouth are mainly the NE and NW-trending faults. The main activity time of fault is Pliocene to Early Pleistocene, and the latest activity is up to Middle Pleistocene. The maximum of fault is generally several tens meters with the throw decreased upward. The dislocation near the bottom of Middle Pleistocene is 12~13 m. The average vertical dis-placement rate is on a level of 10-3 mm/a.By shallow seismic prospecting, it is showed that the faults in the sea area near the Yangtze River mouth are mainly the NE and NW-trending faults. The main activity time of fault is Pliocene to Early Pleistocene, and the latest activity is up to Middle Pleistocene. The maximum of fault is generally several tens meters with the throw decreased upward. The dislocation near the bottom of Middle Pleistocene is 12~13 m. The average vertical dis-placement rate is on a level of 10-3 mm/a.

关 键 词：FAULT ACTIVITY sea area near the Yangtze River mouth 

分 类 号：P546[天文地球—构造地质学]