The corrugation and bifurcation of fault surfaces by cross-slip |
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| Institution: | 1. State Key Laboratory of High-performance Precision Manufacturing, Dalian University of Technology, Dalian 116024, China;2. Zhengzhou Diamond Precision Manufacturing Co., Ltd., Zhengzhou 450016, China;1. Van Yuzuncu Yil University, Faculty of Engineering, Department of Chemical Engineering, Van 65000, Turkey;2. Van Yuzuncu Yil University, Faculty of Engineering, Department of Mechanical Engineering, Van 65000, Turkey;1. Universidad Juárez Autónoma de Tabasco, División Académica de Ingeniería y Arquitectura (DAIA-UJAT), Carretera Cunduacán-Jalpa de Méndez km. 1, Cunduacán, Tabasco, CP 86690, Mexico;2. Centro de Investigación Científica y de Educación Superior de Ensenada CICESE, Carretera Ensenada-Tijuana No. 3918, Zona Playitas, Ensenada, Baja California, CP 22860, Mexico;3. Tecnológico Nacional de México / CENIDET, Prol. Av. Palmira S/N. Col. Palmira. Cuernavaca, Morelos, CP. 62490, Mexico;4. Department of Mechanical Engineering, Engineering Division, Campus Irapuato-Salamanca, University of Guanajuato, Salamanca-Valle de Santiago km 3.5+1.8, CP 36885, Guanajuato, Mexico;1. IPGS/EOST, Université de Strasbourg, rue Blessig 1, F-67084 Strasbourg Cedex, France;2. TOTAL- Exploration Production/Projets Nouveaux place Jean Millier, La Défense 6, 92078 Paris la Defense Cedex, France |
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| Abstract: | The formation of corrugated and stepped fault surfaces by conservative shear is discussed. It is suggested that fault boundaries which lie parallel to the direction of shear are able to deviate from a plane as a fault spreads, like dislocations that cross-slip in a crystal. It is explained how deviations from planar shear can bifurcate fault surfaces and create en-échelon faults. The residual stresses produced by such deviations are tensions and compressions in the direction of shear. |
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