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COMPLEXITY AND CHAOTIC DYNAMICS OF ROCK FAULTING
Author(s): Tan Kaixuan, Xie Yanshi, CHEN Guanghao, HUANG Xiaonai
Pages: 104-
111
Year: 2003
Issue:
1
Journal: GEOTECTONICA ET METALLOGENIA
Keyword: reaction-transport-mechanical coupling; complexity; chaotic evolution; rock faulting;
Abstract: Fault is a complex dynamic system controlled by the coupling of rock texture, reaction, fluid flow,stress, and rock deformation mechanism. A coupled reaction-transport- mechanical dynamic model for fault system is established and described in this paper. An example is presented for the Shuikoushan deposit, Hunan. The results of dynamic simulation indicate that the evolution and magnitude of fracture permeability of different rocks are different, and that faulting can enhance the spatial heterogeneity of rock permeability and facilitate fluid flow and mineralization in local fault zone. The pressure for a fault usually shows a variation mode of aperiodic oscillation with time, which reflects the chaotic behavior of the evolution of a fault.
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