| Autor: |
Akhmetov, A. Zh., Panin, Victor E, Fomin, Vasily M |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2020, Vol. 2310 Issue 1, p1-4, 4p |
| Abstrakt: |
This paper numerically investigates the physical behavior of deep geological structures in the Yakutsk-Vilyui large igneous province (LIP). The geophysical data of "Craton-1980" profile was used to create the computer structures of the researched area. To analyze the inelastic deformation, the Nikolaevsky elastoplastic model was used. For investigating the geotectonic processes the strength model, which operates with cohesion and coefficient of internal friction, was adapted to the Nikolaevsky model. The depth analysis of the stress state was realized making use of the pressure and the Lode parameter. It is shown that the distribution of the Lode parameter depends on inelastic strain localization and reveals mainly the shear type of deviatoric stress. The distribution of pressure has a quasi-monotonic increasing with depth, with local disturbances caused by the shear bands in the depth layers of Earth's crust. These features are more pronounced with increasing of horizontal deformation. These results can be used by geologists to evaluate the metamorphism of rocks. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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