The influence of regional and zonal factors on the formation of engineering and geological conditions of the Okhotsk-Chukotka volcanogenic belt

The relevance of the article is due to the intensive discovery and development of deposits in the Far East. The article deals with the problems of studying the engineering and geological conditions of the gold and silver deposits of the Okhotsk-Chukchi volcanic belt, which are associated with the initial stage of development and study of this territory, the complexity of the formation of geological structures, the manifestation of hydrothermal and tectonic processes, harsh climatic conditions. These conditions are the result of the action of regional and zonal factors, which in turn determine the formation of the modern geological structure, structural and tectonic conditions and determine the appearance of the lithosphere and its condition [1—3]. Four gold-silver epithermal deposits are considered as an example. For which the influence of regional factors was reflected:
— the location of deposits in a single large geological structure;
— a one-story structure;
— confined to large tectonic structures;
— the rock arrays of the deposits are represented by volcanogenic-sedimentary, igneous rocks and metasomatites;
— metallogeny of ore bodies at all deposits is associated with discontinuous faults, the petrographic composition of ore bodies is close to each other [4]. The manifestation of zonal factors contributed to the formation of:
— thicknesses of permafrost rocks with a single-tiered structure;
— cryogenic water resistance and high short-term pressures of permafrost waters;
— under the watercourses of non-glacial taliks. The concept of formation of factors of engineering and geological conditions of the deposits of the Okhotsk-Chukchi volcanic belt is presented as conclusions.

Kozlov V. S., Mazaitova E. D. The influence of regional and zonal factors on the formation of engineering and geological conditions of the Okhotsk-Chukotka volcanogenic belt. MIAB. Mining Inf. Anal. Bull. 2022;(5—1):107—118. [In Russ]. DOI: 10.25018/0236_1493_2022_51_0_107.

the work was carried out within the framework of the implementation of the Priority 2030 program, project manager Professor I. V. Abaturova.

Kozlov V. S., Engineer of the Department of GIGG, ORCID iD 0000-0002-9435-957X, Ural State Mining University, Yekaterinburg, 620144, Russia, mr.vkla@mail.ru;
Mazaitova E. D., Leading Geological Engineer, Postgraduate Student, ORCID iD 0000-0002-0218-4494, LLC “Hydrogeology, Engineering Geology and Geoecology”, Yekaterinburg, 620014, Russia, nugmanova_elvina@mail.ru.

Kozlov V. S., e-mail: mr.vkla@mail.ru.

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