Northeast Russia Research Articles

Approaches to the Classification of Soils of the Accumulative Seashores of Russian Northeast

Approaches to the Classification of Soils of the Accumulative Seashores of Russian Northeast

Srednekanskaya dike gold deposit in the northeast of Russia

This paper presents the results of a comprehensive material composition study of the host rocks and ores of the Srednekanskaya dike deposit. It has been found that the ores had been formed in several stages, namely, the metamorphogenic, hydrothermal-metasomatic (productive), and hypergene stages. At the same time, a decisive role in the formation of the gold mineralization was played by structural controls that are present in the form of breccias and hydrothermalmetasomatic alterations of rocks with gold deposition in the weakened zones. The prevailing features of gold mineralization of the Srednekanskaya dike are as follows: concentration of the bulk of gold in the vein material; predominant coarse gold occurrence as massive plates, lumps, and open-worked films; filling of interstitial openings in quartz, arsenopyrite, and pyrite with fine gold; native gold in quartz veins and quartz-carbonate-feldspar breccias localized in microdiorites confined to both arsenopyrite and pyrite and native gold associated with diorite-porphyry confined only to arsenopyrite, as supported by the geochemical data. Process studies have been carried out and the efficiency of Srednekanskaya dike ore processing by gravity methods has been established, with the gold recovery reaching 90 %. A recommended process flow sheet is presented.

Molecular-mass distribution of humus acids of taiga soils

Purpose of the study: to reveal the influence of hydromorphism and agricultural use on the molecular-mass distribution (MMD) of humic (HAs) and fulvic acids (FAs) isolated from the soils of the European northeast of Russia. To assess the influence of the acidity of the medium on the MWD of FAs. Place and time of the event. The studies were carried out on the territory of the middle taiga (Maksimovsky station of the Institute of Biology of the Federal Research Center of the KSC UB RAS, located 8 km west of the city of Syktyvkar and the field of the Syktyvkar state farm, 5 km south-west of Syktyvkar, on the watershed of the Sysola and Vazhel-yu rivers) and northern taiga (3 km west of the Troitsko-Pechorsk station). The objects of the study were humic substances isolated from typical podzolic (Eutric Albic Retisol (Loamic)), gleypodzolic (Eutric Albic Stagnic Retisol (Loamic)), peaty-podzolic surface-gleyed (Eutric Albic Stagnic Histic) Retisol (Loamic Eutric Albic Retisol (Loamic)) soils. The soil sampling period is from 1 to 30 August 2014. Methodology. Quantitative analysis of the MMD of HA and FA preparations was performed using liquid size exclusion chromatography (gel chromatography) on Sephadex G-25 and G-100 gels with continuous automatic registration of the optical density of the eluate (λ = 280 nm) in a quartz flow cell, K 9 × 60 cm column (Pharmacia, Sweden). Distilled water, 0.05 M NaOH solution, and Tris-HCl buffer with pH = 8.2 were used as the eluent. Main results. Studies of the MMD of humic substances have been carried out. It was found that HAs contain three fractions with different molecular weights: ≥ 150 kDa, 73–80 kDa, and 13–23 kDa; FAs – two fractions: ≥ 5 kDa, 1–2 kDa. The low molecular weight of FAs, together with a large amount of oxygen-containing functional groups, contributes to their better solubility and migration ability in soils. The HAs of automorphic soils are characterized by a high content of low molecular weight fractions, and the proportion of the high molecular weight fraction in the HAs of the litter is 1.5–2.0 times higher than in the HAs of the podzolic horizon, which may be due to the migration of the low molecular weight fraction down the profile. The high proportion of the acidic low molecular weight fraction in the podzolic horizon promotes the decomposition of soil minerals and their leaching into the illuvial horizon. The influence of agricultural use of soils on the fractional composition of humic compounds is estimated. A sharp increase in the share of the high molecular weight fraction in the preparations of HAs of arable podzolic soil by 2–4 times compared with the HAs of virgin podzolic soils was noted, which is due to the cultivation of the arable horizon, the nature of the incoming plant residues and the increased microbiological activity of the developed soils. The effect of acidity of the medium on the character of chromatograms of FA preparations isolated from the main types of soils of the Komi Republic was studied. It has been shown that in the region of high pH values of the eluent 9–13, the absence of fractionation is associated with the association of FAs, a change in their conformation, and the effect of “over-exclusion”. Elution with distilled water (pH = 6.5) allows the separation of FAs into two fractions with molecular weights ≥ 5 kDa and 1–2 kDa.

Трематоды (Trematoda, Plathelminthes) азиатского бурундука (Tamias sibiricus) Магаданской области.

Data on trematodes (Trematoda) of the Siberian Cipmunk (Tamias sibiricus) in Magadan Oblast are presented. Four trematode species of the two families (Plagiorchiidae Lühe, 1901 (Plagiorchis vespertilionis (Müller, 1780); Pl. elegans (Rudolphi, 1802), Pl. eutamiatis (Schulz, 1932), and Brachylaimidae Goyeux et Folay, 1930 (Brachylaima recurva (Dujardin, 1845)) are identified. An illustrated description of all the four species of trematodes, first noted in the Chipmunk in the North-East of Russia, is given.

Features of local etiological factors of periodontal disease in residents of high latitudes

Aim. The purpose of the article is to determine specific regional risk factors for periodontal diseases in residents of the North-East of Russia on a complex clinical and physiological research.Materials and methods. A clinical study of the biophysical properties and composition of oral fluid (salivation rate, pH, viscosity, microcrystallization type, lysozyme activity) in the adult population with inflammatory periodontal diseases were done at dental clinic of the Medical Institute of M.K.Ammosov North-Eastern Federal University, dental clinic "Valeon" and clinical and diagnostic laboratory "Scientific and Practical Center of Phthisiatry" (Yakutsk). A total of 1012 individuals aged 15-19 years old (n = 248) and 35-44 years old (n = 764) were examined. Oral hygiene in the age groups was assessed by the Oral Hygiene Index according to J.C. Green and J.R. Vermillion (1964). In addition, social and hygienic status was assessed according Yu. V.Chizhov's method (2005). Statistical processing was carried out using the SPSS software package, version 22. The research was performed in accordance with the principles and rules of evidence-based medicine.Results. The obtained results determine quantitative and qualitative changes in oral fluid properties. The presence of biological risk factors associated with changes in the composition and properties of the oral fluid, as well as a low sanitary level, which are associated with viscosity increase, salivation rate decrease, a predominance of II and III types of microcrystallization, acidic pH level, a decrease in the level of lysozyme activity, were revealed. The identified risk factors have an impact on the prevalence of periodontal disease in the people of the North and mostly determine their clinical course.Conclusion. The revealed biophysical features of oral fluid in the examined adolescents and adult population of the North-East of Russia are specific regional local risk factors for the development of periodontitis, which must be taken into account when improving the therapeutic and preventive measures of pathological processes of periodontal tissues.

Syntaxonomy of secondary communities formed instead of earlier agricultural lands in the middle and south taiga subzones of the European North-East of Russia

We have identified the diversity of secondary communities formed instead of earlier agricultural lands (middle and south taiga subzones of the European North-East of Russia). The work describes 8 associations, 2 subassociations of the classes Papaveretea rhoeadis, Artemisietea vulgaris,Epilobietea angustifolii, Molinio–Arrhenatheretea, Vaccinio–Piceetea. 3 associations (Urtico dioicae–Chamaenerietum angustifolii, Centaureo phrygiae–Dactyletum glomeratae, Deschampsio cespitosae–Salicetum capreae), 1 subassociation (Galeopsietum bifidae galeopsietosum speciosae)were fixed for the first time. We noted a replacement of segetal communities (subass. Galeopsietum bifidae galeopsietosum speciosae) by meadow communities (аss. Centaureo phrygiae–Dactyletum glomeratae) through the domination stage of Cirsium setosum and Elytrigia repens (аss. Cirsio setosi–Elytrigietum repentis). Favorable conditions for development of woody plants (small size of study area, its close position to forest ecosystems, poorly sodded soil) respond for replacement of meadow succession stage by young woody plants towards the second decade of succession. Earlier agricultural lands are an appropriated place for formation of birch forests with a well-developed undergrowth of Salix caprea and herb layer of meadow and forest edge plants (аss. Deschampsio cespitosae–Salicetum capreae). Big-size study areas with a well-formed grass stand are dominated by meadow communities towards the second succession decade even in case of no haying. The highly competitive nitrophytes as Heracleum sosnowskyi, Chamaenerion angustifolium, Anthriscus sylvestris form the following communities as аss. Urtico dioicae–Heracleetum sosnowskyi, аss. Urtico dioicae–Chamaenerietum angustifolii, аss. Symphyto officinalis–Anthriscetum sylvestris. Being highly competitive, these species lead to degradation of first-formed meadow communities.

PILES BEARING CAPACITY IN PERMAFROST SOILS UNDER CLIMATE CHANGE

The one of the main natural systems in the Russian Federation that are exposed to global warming is the permafrost zone. The temperature of permafrost soils changes, the seasonal thaw zone increases, the process of permafrost degradation is started, influencing the strength characteristics of the soils. The study was aimed to assess the climate change in terms of the impact on the bearing capacity of the soil base under buildings and structures built in the 1960s and 1980s on the Principle I (maintaining the permafrost state of the soil). On the basis of published archival and forecast data on the increase rate in the active layer thickness and the rising temperature trends of permafrost soils for seven geographical regions of Russia (North of the European part, North of Western Siberia, Middle Siberia, Yakutia, Southern Siberia, Baikal region and North-East of Russia) a reduction in the bearing capacity of the standard reinforced concrete pile (35´35 cm section, 10 m long) was determined. The study revealed that for now in most regions the reduction in the bearing capacity of the pile is on average level (10-20 %). However a high (>30 %) decrease is expected by 2050. The temperature distribution in the soil mass was modelled in the Frost 3D program for the conditions of Norilsk, considering the thermal influence of the building. Numerical modelling was performed for a period of time until the middle of the XXI century. In the base of a building the resulting significant settlement of the thawing soil under its own weight can lead to the occurrence of negative friction forces. This effect must be taken into account when calculating pile foundations.

Инновационная инфраструктура и патентная деятельность в регионах Северо-Востока России

Статья посвящена исследованию инновационной деятельности, в том числе инновационной инфраструктуры и патентной деятельности в регионах Северо-Востока России (СВР). К северо-восточным регионам России относятся Республика Саха (Якутия), Магаданская область, Чукотский автономный округ, Камчатский край и Сахалинская область, которые кроме Камчатского края относятся к северным регионам ресурсного типа. Методологической основой оценки инновационного развития регионов послужили работы зарубежных и отечественных авторов, а также разработки авторов по данной тематике. Выполнен обзорный анализ инновационной деятельности пяти регионов, расположенных на территории Северо-Востока России. Проанализирована инновационная инфраструктура Республики Саха (Якутия), Магаданской области, Чукотского автономного округа, Камчатского края и Сахалинской области. Представлены показатели «динамика изменения показателей патентной деятельности», характеризующие изобретательскую активность регионов. Анализ данных показывает, что лидирующую позицию среди регионов СВР по изобретательской активности занимает Республика Саха (Якутия) с показателем 0,79, что существенно выше, чем в Магаданской области (0,36), Камчатском крае (0,32) и Сахалинской области (0,10). Такая же картина расположения наблюдается и в динамике выданных патентов на изобретения, полезные модели и промышленные образцы на десять тысяч человек рабочей силы. Анализ и оценка инновационного потенциала СВР показывают, что в большинстве субъектах созданы необходимая правовая и инновационная инфраструктурная база, приняты региональные концепции и программы развития инновационных систем, в основном имеются необходимые инфраструктурные элементы для развития региональной инновационной системы. В перспективе необходимы будут дальнейшие исследования влияния инновационных процессов на социально-экономическое развитие северных (арктических) территорий, в том числе северо-восточных регионов России. The article is devoted to the study of innovation activity, including innovation infrastructure and patent activity in the regions of the Russian northeast (RNE). The north-eastern regions of Russia include the Sakha Republic (Yakutia), Magadan Oblast, Chukotka Autonomous Okrug, Kamchatka Krai and Sakhalin Oblast, which, except Kamchatka Krai, belong to the northern regions of the resource type. The methodological basis for assessing the innovative development of the regions was found in works by foreign and Russian authors, as well as revealed by the authors when studying the topic. The review analysis of innovative activity of the five regions located in the Russian northeast was done. The innovative infrastructures of the Sakha Republic (Yakutia), Magadan Oblast, Chukotka Autonomous Okrug, Kamchatka Krai and Sakhalin Oblast were analyzed. The indicators “dynamics of changes in the indicators of patent activity”, characterizing the inventive activity of the regions, were presented. The data analysis showed that the leading position among the regions of the RNE in terms of inventive activity is occupied by the Sakha Republic (Yakutia) with an indicator of 0.79, which is significantly higher than those of Magadan Oblast (0.36), Kamchatka Krai (0.32), and Sakhalin Oblast (0.10) (Fig. 5a). The same pattern of location was observed in the dynamics of issued patents for inventions, utility models and industrial designs per ten thousand people of the labor force (Fig. 5b). The analysis and assessment of the innovation potential of the RNE showed that the necessary legal and innovative infrastructure base has been created in most subjects, regional concepts and programs for the development of innovative systems have been adopted, and there are basically the necessary infrastructure elements for the development of regional innovation systems. In the future, further studies of the impact of innovative processes on the socio-economic development of the northern (Arctic) territories, including the Russian northeastern regions, will be necessary.

The Geochemical Patterns of Native Gold from the Yugler Ore–Placer Field (Northeast Russia)

The Geochemical Patterns of Native Gold from the Yugler Ore–Placer Field (Northeast Russia)

Phylogeographic study of the Bufo gargarizans species complex, with emphasis on Northeast Asia

ABSTRACT We conduct a phylogeographic and population genetic study of the Asiatic toad (Bufo gargarizans) to understand its evolutionary history, and the influence of geology and climate. A total of 292 individuals from 94 locations were genotyped for two mitochondrial loci (cytb, ND2) and five nuclear introns (Sox9-2, Rho-3, CCNB2-3, UCH-2, and DBI-2), and we performed a suite of phylogenetic, population genetic, and divergence dating analyses. The phylogenetic trees constructed using mitochondrial loci inferred B. gargarizans being divided into two major groups: China mainland and Northeast Asia (Northeast China, Russia, and Korean Peninsula). As with previous studies of this species, we recover population genetic structure not tied to geographic region. Additionally, we discover a new genetic clade restricted to Northeast Asia that points towards the Korean Peninsula being a glacial refugium during the Pleistocene. The weak phylogeographic pattern of B. gargarizans is likely the result of multiple biological, anthropogenic, and historical factors – robust dispersal abilities as a consequence of physiological adaptations, human translocation, geologic activity, and glacial cycles of the Pleistocene. We highlight the complex geologic and climatic history of Northeast Asia and encourage further research to understand its impact on the biodiversity in the region.

A new straton in the Late Devonian sedimentation in the Tsil’ma river basin of the Middle Timan

Research subject. Terrigenous rocks of the Sargaevo stage of sedimentation in various structural-facies settings within the Tsilma area (Middle Timan). Material and methods. The composition, structural features of rocks, and the species diversity of spores of higher plants were studied in the most complete natural outcrops proposed as a stratotype of the Paladinskaya Formation – a new straton of the Sargaevo age in the Middle Timan. Over a large area of the region, the deposits contain very few remains of fossil fauna, often indifferent. As a result, palynostratigraphy was selected as the main biostratigraphic method. Results. In the Middle Timan, a new straton, the Paladinskaya Formation, is described, which characterizes the Sargaevo stage of sedimentation in various structural-facies settings within the Tsil’ma area. The new straton has clear lithological and detailed palynological characteristics; a description of the limitotypes was performed.At present, the Paladinskaya Formation is the most complete sequence of Early Frasnian sedimentation in the European North-East of Russia, where it was possible to record regional responses to the global Frasnes event and to determine the position of the controversial level of the boundary between the Middle and Upper Devonian. Conclusions. The name “Ust’e Yarega” Formation in the Middle Timan cannot be considered valid, since it is a homonym of the sediments of the same age in the South Timan. The section is represented mainly by continental, rather than marine, deposits. A new name for the identifed formation is proposed – “Paladinskaya” with a description of the stratum section and limitotype.The Paladinskaya Formation is characterized by subcomplexes of spores (А and Б) of the regional miospore zone Cristatisporites pseudodeliquescens, which made it possible to correlate the marine and continental deposits of the Early Frasnian on the territory of the entire Timan-Pechora region and establish its exact position in the stratigraphic scheme of the Devonian.

Pb-Pb and U-Pb Dating of Cassiterite by In Situ LA-ICPMS: Examples Spanning ~1.85 Ga to ~100 Ma in Russia and Implications for Dating Proterozoic to Phanerozoic Tin Deposits

This paper investigates applicability of cassiterite to dating ore deposits in a wide age range. We report in situ LA-ICPMS U-Pb and Pb-Pb dating results (n = 15) of cassiterite from six ore deposits in Russia ranging in age from ~1.85 Ga to 93 Ma. The two oldest deposits dated at ~1.83–1.86 Ga are rare metal Vishnyakovskoe located in the East Sayan pegmatite belt and tin deposits within the Tuyukan ore region in the Baikal folded region. Rare metal skarn deposits of Pitkäranta ore field in the Ladoga region, Fennoscandian Shield are dated at ~1.54 Ga. Cassiterite from the Mokhovoe porphyry tin deposit located in western Transbaikalia is 810 ± 20 Ma. The youngest cassiterite was dated from the deposits Valkumei (Russian North East, 108 ± 2 Ma) and Merek (Russian Far East, 93 ± 2 Ma). Three methods of age calculations, including 208Pb/206Pb-207Pb/206Pb inverse isochron age, Tera-Wasserburg Concordia lower intercept age, and 207Pb-corrected 206Pb*/238U age were used and the comparison of the results is discussed. In all cases, the dated cassiterite from the ore deposits agreed, within error, with the established period of magmatism of the associated granitic rock.

Resilience of Arctic Communities: Socio-Economic Aspect

The study investigates factors that directly or indirectly affect the development of settlements in the North-East of the Russian Arctic. The study highlights the specific features of the Arctic settlements of the Northeast, as well as factors that will be considered in the development of a methodology for assessing the resilience of Arctic communities to economic shocks. The main focus is on the investigation of demographic processes in the Northeast Arctic, since it is human capital that determines the resilience of settlements to economic shocks. According to the results of the analysis, it was found that the key trend is the migration outflow, and the factors constraining it are the growth of wages, the presence of a minimum improvement of housing, in particular, heating and guarantees of social support. Therewith, such a factor as the presence of traditional trades and occupations does not contribute to a decrease in the migration outflow. This study was performed to further develop the concept of resilience and form a methodology for assessing the resilience of the economic and social system of an Arctic settlement to economic shocks. In the future, this methodology makes provision for the construction of a model with factors and indicators that determine the resilience of the socio-economic system of the Arctic settlement in the North-East of Russia (as exemplified by the Bulunsky district of the Republic of Sakha (Yakutia)) to economic shocks.

Features of the gold-silver-bismuth-tellurium mineralization in the Allakh-Yun metallogenic zone (North-East of Russia)

Features of the gold-silver-bismuth-tellurium mineralization in the Allakh-Yun metallogenic zone (North-East of Russia)

Resource potential and properties of cellulose obtained from tree willow wood

Willow trees occupy an important place in the dendroflora of the middle zone of the European part of Russia due to their extensive species diversity and large intrapopulation variability. In the Arkhangelsk Region and other regions in the North-East of Russia, abandoned agricultural land (post-agrogenic land) can serve as places for the creation of willow plantations. Currently, such lands are actively overgrown with various tree species, usually of low quality and not of significant commercial interest. The creation of plantations will allows by a short logging turnover to obtain stable wood yields and organize a highly profitable economy on unused land. There is no any information on the willow cultivation in Russia. Willows of the Salix genus grow everywhere and there are more than 130 species. About 30 of these species are found in the Arkhangelsk region. Based on the data of the State forest register of the North Taiga forest region, the tree willow occupies an area of 5.3 thousand hectares. Land with strong moisture is widespread in the Arkhangelsk region. Willow grows well in these areas. Due to this, as well as the good strength of the pulpwillow wood can be widely used in pulp and paper production.

The Position of the Wuchiapingian–Changhsingian Boundary in Northeast Russia on the Basis of Radioisotopic and Chemostratigraphic Data

The Position of the Wuchiapingian–Changhsingian Boundary in Northeast Russia on the Basis of Radioisotopic and Chemostratigraphic Data

Formation of organic soil horizons during the initial pedogenesis in the taiga zone of the European Russian Northeast

Investigations were carried out in the European Russian Northeast (Komi Republic), -in the middle taiga subzone, in the (construction sand) quarry area. Formation of the soil profile within two decades after forest reclamation practices (Pinus sylvestris planting) was considered. Specifics of litter and humus horizons formation, processes of humus formation and accumulation on substrates of different granulometric composition were determined. It is shown that the rate of these processes is determined by the species composition and structure of the plant community. By the end of the second decade, up to 2.7 t·ha-1 of organic carbon accumulates in the humus-accumulative layer (0-20 cm) of sandy and sandy-loam soils, 6.3 t·ha-1 - in clay-loam soils, and 0.1 and 0.4 t·ha-1of nitrogen, respectively, accumulates there as well. The accumulation rate of Corg in the soil of the sandy and sandy-loam quarry reached 0.16, in the clay-loam quarry - 0.37 t·ha-1·year-1. The organic horizons of the forming soils demonstrate a decrease of the mass fraction of calcium, potassium, phosphorus and an increase in iron and aluminum down the profile.

Сакральная природа белого камня в храмовом строительстве Андрея Боголюбского

The article deals with the issues of the sudden appearance of white-stone construction in the middle of the XII century in the North-East of Russia, in the Vladimir Principality, which are practically not affected by science. The purpose of the study is to identify the most likely sources that influenced the process of origin and formation of the unique style of Vladimir-Suzdal architecture during the reign of Andrei Bogolyubsky (1157–1177). The research methods were reduced not only to the analysis of the Old Testament texts, with which the Great Vladimir Prince was well acquainted and admired their heroes during the construction of his white-stone churches, but also to the identification of the peculiarity of the current situation, individual facts of the prince's activity and the nature of his character, which became an active incentive to the introduction of white stone instead of bricks, which took a sacred character for Andrey Bogolyubsky. The result of the study is as follows: first, the symbolism of the white color, drawn from the biblical testaments of the consubstantial God, became the leitmotif for the architectural creations of the Vladimir prince; second, the perceived Old Testament building traditions stimulated the growth of original forms of Vladimir-Suzdal white stone architecture, which have no close analogies in the entire area of neighboring countries. In the light of the current inclusion of white stone buildings in the UNESCO World Cultural Heritage, the aspect of their study not only brings scientific novelty to the already established interpretation, but also entails a rethinking of the practical orientation of restoration and restoration work on them.

Prospects for the development of the energy complex of the North-East of Russia

THE PURPOSE. To analyze scenarios for the development of the energy complex of one of the regions of the North-East of Russia for the period up to 2030 with a target vision until 2050. This will require an analysis of the current state of the energy complex; show the latest changes in the power supply system; propose promising areas for the transfer of electricity. METHODS. To assess the current state of the electric power industry, from the point of view of the most efficient use of natural energy resources and the potential of the energy sector of the economy, methods of collecting and processing statistical data were applied. For the technical assessment of the state of electric power facilities, analytical and logical- probabilistic methods for determining reliability were applied. To predict energy consumption, mathematical modeling methods were used with the construction of approximating polynomials. RESULTS. The article evaluates the strategic and moderate scenarios for the development of the energy sector of the Republic of Sakha (Yakutia) in modern conditions, taking into account the increase in the energy efficiency of the region's economy. The indicators of electricity consumption throughout the republic, the Western Energy District and the decentralized power supply zone were subject to assessment. Long-term forecasts made do not confirm the development of events according to a more stringent strategic scenario. At the same time, the results for the moderate scenario are fully correlated with both the current state of the energy sector and the prospects for its development. CONCLUSION. Analysis of the current state and assessment of scenarios for the development of the energy sector of the republic's economy showed an increase in the reliability of power supply systems when organizing a "ring" in the Western Energy District; increase in useful electricity consumption by 2030; increase in electricity production; changes in the structure of electricity production.

HUMAN PHYSIOLOGICAL CONDITIONS AT DIFFERENT STAGES OF ADAPTATION TO THE HIGH NORTH

Aim: To study physiological conditions of the human body at different stages of adaptation to the climatic conditions of the High North. Methods: A longitudinal study included 17-21-year-old young men (n = 1 310) in the Magadan region (North-East of Russia) that were followed up for 10 years. Parameters of the cardio-respiratory system, the structure of the microvasculature, as well as the data of the biochemical profile and basic metabolism of the subjects were measured and analyzed. Results: Our main findings suggest that longer duration of residence in the High North is associated with decreased functional stress in cardiovascular and respiratory systems. The proportion of individuals with abnormal basal metabolic parameters and hyperglycemia was inversely associated with duration of stay in the High North. At the same time, the percentage of alterations in microcirculation indices increases from the 0 to the third generation of residents of the High North. Conclusion: The results of the study are in general in line with the results of earlier studies on conditions of the main physiological systems at different stages of adaptation. They provide additional support to the hypothesis of the formation of a new population of inhabitants in the Russian High North that were newcomers but gradually adapted to the conditions of the North.