«IZVESTIYA IRKUTSKOGO GOSUDARSTVENNOGO UNIVERSITETA». SERIYA «NAUKI O ZEMLE»
«THE BULLETIN OF IRKUTSK STATE UNIVERSITY». SERIES «EARTH SCIENCES»
ISSN 2073-3402 (Print)

List of issues > Series «Earth Sciences». 2020. Vol. 33

The Evolution of the Discontinuos Structure of the Shear Zone as a Periodic Process (Based on Physical Modeling)

Author(s)
А. А. Karimova, S. A. Bornyakov
Abstract

The article presents the results of the physical modeling of the process of of the destructive shear zone formation in elastic-viscous-plastic model of lithosphere. The simulation performed with the aim of identifying common regularities of evolution of deformation components of its internal structure of systems. Previously, it was found that the entire process of destructive shear zone formation consists of three stages. To get an idea of the details of the process at the regional and local levels, data on the parameters were collected and processed from the models: total number of discontinuities, total length, variations in the displacement amplitude and variations in the plastic deformations of the model material in adjacent blocks. The results of a new series of experiments showed that the stage is divided into stages, each of which in turn is divided into groups of variations and unit variations. The selected time intervals in the sequence “variation-group of variations-stage-period” characterize the qualitatively repeating dynamics of the deformation of fracture systems at different scale levels.

About the Authors

Karimova Anastasiya Alekseevna, Lead Engineer, Laboratory of Tectonocphysics, Institute of the Earth’s Crust SB RAS, 128, Lermontov st., Irkutsk, 664033, Russian Federation; Senior Lecturer, Irkutsk State University, 1, K. Marx st., Irkutsk, 664003, Russian Federation, e-mail: tarasova@crust.irk.ru 

Bornyakov Sergey Alexandrovich, Candidate of Sciences (Geology and Mineralogy), Senior Researcher, Laboratory of Tectonophysics, Institute of the Earth’s Crust SB RAS, 128, Lermontov st., Irkutsk, 664033, Russian Federation; Irkutsk State University, 1, K. Marx st., Irkutsk, 664003, Russian Federation; Irkutsk Scientific Center SB RAS, 134, Lermontov st., Irkutsk, 664033, Russian Federation, e-mail: bornyak@crust.irk.ru

For citation

Karimova А.А., Bornyakov S.A. The Evolution of the Discontinuos Structure of the Shear Zone as a Periodic Process (Based on Physical Modeling). The Bulletin of Irkutsk State University. Series Earth Sciences, 2020, vol. 33, pp. 44-52. https://doi.org/10.26516/2073-3402.2020.33.44 (in Russian)

Keywords
physical modeling, destructive shear zone, deformation evolution
UDC
551.24.02
DOI
https://doi.org/10.26516/2073-3402.2020.33.44
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