[an error occurred while processing this directive] ������� 2009, 28(3) 310-317 DOI:     ISSN: 1004-5589 CN: 22-1111/P

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3D finite element simulation on sin istral strike-slip of Dunhua-Mishan fault
ZHAO Ying-Li-1, LIU Yong-Jiang-1, HAN Guo-Qing-1, WEN Quan-Bo-1, LI Wei-1, LIANG Dao-Jun-1, 2
1. College of Earth Sciences, Jilin University, Changchun 130061, China; 2. Department of Geology, Kim Il Sung University, Pyongyang, Korea
Abstract:

Dunhua-Mishan fault zone with sinistral strike-slip shear property is one of the important branches of northern Tancheng-Lujiang fault zone, and there have long been controversies about its strike-slip displacement. An idealmodel of the geological bodies has been established, and the strike-slip displacement of the Dunhua-Mis2 han fault zone was simulated by discontinuous and continuous force app lication methods using 3D finite element simulation p rogram-ANSYS. The results show accumulate displacement by discontinuous force is 273.8 km and by continuous force is 406.8 km, which indicate that Tancheng-Lujiang fault zone has consistent displacement from south to north if ignoring the external resistance influence and the deformation and absorp tion displacement by inner geological bodies. The authors consider the actual displacement of Dunhua-Mishan fault zone should be less than the simulated result by ideal model under the comp rehensive consideration of the resistance by Bureya-Jiamusi block and the absorption to displacement by ductile deformation and thrust nappe structure in inner geological bodies, which provides a significant evidence of Tancheng-Lujiang fault zone has decreasing displacement from south to north.

Keywords: Dunhua22Mishan fault   Tancheng22Lujiang fault   sinistral strike22slip   3D finite element simula2 tion   ANSYS software  
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