Experimental study and active tectonics on the Zhangjiakou-Penglai fault zone across North China

摘要: Abstract The Zhangjiakou-Penglai Fault Zone (ZPFZ), as a large-scale WNW-trending active fault zone with frequent seismic activity, is an area prone to moderate intense earthquakes across North China. A detailed analysis of the ZPFZ has been carried out based on earthquake deep structural response, dynamic mechanism and physical simulation by conducting en echelon model experiment. results show that lithospheric controlled some small Quaternary pull-apart basins triggered many seismogenic structures. location intensity distribution experimental fit well those actual earthquakes. obviously properties. activity strong in middle weak at western eastern ends zone, migrating from southeast northwest along entire zone. This China, closely related surrounding plate activities. not only dominated collision Indian Plate Eurasian Plate, but also influenced subduction Pacific Plate. It depends comprehensive reflection two geodynamic settings plates Ocean