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VARIATION BETWEEN THE MAXIMUM PRINCIPAL STRESS AND HORIZONTAL STRAIN DURING SINGLE FOLD DEFORMATION AND ITS CONTROLLING FACTORS

ZHOU Ye1, 2, 3, LIN Ge1, GONG Faxiong1,3, LIU Shilin1,3 and ZHANG Desheng1,3(1. CAS Key Laboratory of Marginal Sea Geology, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, Guangdong 510640, China; 2. State Key Laboratory of Geological Process and Mineral Resources, China University of Geosciences, Beijing 100083, China; 3. Graduate School of Chinese Academy of Sciences, Beijing 100049, China)  
The quantitative and half-quantitative investigations on geological structures are the problems that have challenged many geologists in recent years, and numerical simulation of fold is one of them. Fold is a kind of typical structure in the field of structural geology, and many structural geologists have paid much attention to it at all times. Based on our own simulation results and results of some numerical simulation of single fold structure by other investigators in recent years, the factors that affect single fold shapes and the variation of maximum principal stress and horizontal strain during the deformation of single fold are discussed in this paper. It can be concluded that numerical simulation technology is a new method to analyze fold structure, and the method will find significant development in structural geology field.
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