Characteristics of the Zhengzhou Laoyachen Fault Revealed by Seismic Exploration Data
Exploration and research of fault activities are the fundamentals of earthquake prediction and prevention and disaster reduction. In order to determine the location, characteristics and activities of the Zhengzhou-Laoyachen fault, shallow seismic prospecting with different exploration depth across the Laoyachen fault was carried out in the northern suburbs of Zhengzhou city in 2006. The images of the subterranean structure and tectonics at depths of 30m～6000m have been available by applying the combined methods of explosive seismic sources and vibrator seismic sources, as well as the combination of diverse observation systems with different parameters. The outcome indicates that the Laoyachen fault is a normal fault running NW and dipping NE, which offsets stratums ahead of Neogene (N). However, no fault displacements are found in the interior stratums of Q + N.
作 者： Liu Baojin Zhao Chengbin Tian Qinjian Liu Yaoxing Feng Shaoying 作者单位： Liu Baojin,Zhao Chengbin,Feng Shaoying(Geophysical Exploration Center, CEA, Zhertgzhou 450002, China)Tian Qinjian(Earthquake Disaster Prevention Center, CEA, Beijing 100029, China)
Liu Yaoxing(Earthquake Administration of Henan Province, Zhengzhou 450003, China)
刊 名： 中国地震研究（英文版） 英文刊名： EARTHQUAKE RESEARCH IN CHINA 年，卷(期)： 2009 23(2) 分类号： P3 关键词： Laoyachen Fault Shallow seismic exploration Fault activity S/N