GEODYNAMIC ACTIVITY OF MODERN STRUCTURES AND TECTONIC STRESS FIELDS IN NORTHEAST ASIA

• Main Authors: L. P. Imaeva, G. S. Gusev, V. S. Imaev, S. V. Ashurkov, V. I. Melnikova, A. I. Seredkina
• Format: Article
• Language: English
• Published: Institute of the Earth's crust, Siberian Branch of RAS 2017-12-01
• Series: Geodinamika i Tektonofizika
• Subjects: regional segments; active faults; parageneses of active structures; paleoseismogenic structures; late cenozoic deformation; earthquake focal mechanism; seismotectonic deformation; gps data; crustal stress-strain state
• Online Access: https://www.gt-crust.ru/jour/article/view/469
• ISSN: 2078-502X

Based on the analysis of changes in the stress-strain state of the crust at the boundary of the Eurasian and North American tectonic plates, we develop a dynamic model of the main seismogenerating structures inNortheast Asia. We have established a regularity in changes of geodynamic regimes within the interplate boundary between the Kolyma-Chukotka crustal plate and the Eurasian, North American and Pacific tectonic plates: spreading in the Gakkel Ridge area; rifting in the Laptev Sea shelf; a mixture of tectonic stress types in the Kharaulakh segment; transpression in the Chersky seismotectonic zone, in the segment from the Komandor to the Aleutian Islands, and in the Koryak segment; and crustal stretching in the Chukotka segment.