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

Geodinamika i Tektonofizika

G. S. Gusev¹  V. I. Melnikova¹  V. S. Imaev²  S. V. Ashurkov³  L. P. Imaeva³  A. I. Seredkina³ 

[1] Institute of Diamond and Precious Metals Geology, Siberian Branch of RAS;Institute of Mineralogy, Geochemistry and Crystal Chemistry of Rare Elements of RAS;Institute of the Earth’s Crust, Siberian Branch of RAS;

关键词: regional segments;    active faults;    parageneses of active structures;    paleoseismogenic structures;    late cenozoic deformation;    earthquake focal mechanism;    seismotectonic deformation;    gps data;    crustal stress-strain state;   

DOI  :  10.5800/GT-2017-8-4-0315

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown