Geophysical processes and biosphere: article

RELATIONSHIP OF MEGAFRACTURING EXPRESSED IN THE RELIEF OF SOUTHEAST KAMCHATKA WITH VOLCANISM AND THERMAL CONDITION OF THE UPPER PART OF THE LITHOSPHERE
A.O. Agibalov 1
2
3
О.V. Bergal-Kuvikas 1
4
V.A. Zaitsev 2 A.A. Sentsov 3
1 Institute of Volcanology and Seismology, Far Eastern Branch of the Russian Academy of Sciences 2 Lomonosov Moscow State University, Faculty of Geology 3 Schmidt Institute of Physics of the Earth, Russian Academy of Sciences 4 Vitus Bering Kamchatka State University
Journal: Geophysical processes and biosphere
Tome: 23
Number: 4
Year: 2024
Pages: 105–114
UDK: 551.1/.4
DOI: 10.21455/GPB2024.4-8
Full text
Keywords: southeast of Kamchatka, megafractures, relief analysis.
Аnnotation: Geomorphological methods have been used to identify areas of increased megafracture in the south-east of Kamchatka, characterized by high crustal seismicity and low temperature values at a depth of 1 km. It has been established that warmer areas of concentration of volcanoes and hot springs are not favorable for the development of surface fracturing, since an increase in temperature leads to the dominance of plastic deformations over brittle ones. Thus, using the example of the selected area, the possibilities of structural-geomorphological and morphometric analysis of the relief are shown to identify areas in different geothermal states, which largely determine not only the relief and seismic-ity, but also the ecological and landscape appearance of the territory as a whole including its floristic and faunistic features.