East Of Russia Research Articles

Late Pleistocene to Holocene vegetation and climate changes in northwestern Chukotka (Far East Russia) deduced from lakes Ilirney and Rauchuagytgyn pollen records

This paper presents two new pollen records and quantitative climate reconstructions from northern Chukotka documenting environmental changes over the last 27.9 ka. Open tundra‐ and steppe‐like habitats dominated between 27.9 and 18.7 cal. ka BP. Betula and Alnus shrubs might have grown in sheltered microhabitats but disappeared after 18.7 cal. ka BP. Although the climate was rather harsh, local herb‐dominated communities supported herbivores as is evident by the presence of coprophilous spores in the sediments. The increase in Salix and Cyperaceae ~16.1 cal. ka BP suggests climate amelioration. Shrub Betula appeared ~15.9 cal. ka BP, and became dominant after ~15.52 cal. ka BP, whilst typical steppe communities drastically reduced. Very high presence of Botryococcus in the Lateglacial sediments reflects widespread shallow habitats, probably due to lake level increase. Shrub Alnus became common after ~13 cal. ka BP reflecting further climate amelioration. Simultaneously, herb communities gradually decreased in the vegetation reaching a minimum ~11.8 cal. ka BP. A gradual decrease of algae remains suggests a reduction of shallow‐water habitats. Shrubby and graminoid tundra was dominant ~11.8–11.1 cal. ka BP, later Salix stands significantly decreased. The forest‐tundra ecotone established in the Early Holocene, shortly after 11.1 cal. ka BP. Low contents of green algae in the Early Holocene sediments likely reflect deeper aquatic conditions. The most favourable climate conditions were between ~10.6 and 7 cal. ka BP. Vegetation became similar to the modern after ~7 cal. ka BP but Pinus pumila came to the Ilirney area at about 1.2 cal. ka BP. It is important to emphasize that the study area provided refugia for Betula and Alnus during MIS 2. It is also notable that our records do not reflect evidence of Younger Dryas cooling, which is inconsistent with some regional environmental records but in good accordance with some others.

EmOiceoptoma/em emtangi/em (Coleoptera: Silphidae: Silphinae), a new species of carrion beetle from eastern China.

A new species, Oiceoptoma tangi Sommer, Růžička, Nishikawa Schneider, new species, from Zhejiang Province, China, is described and illustrated. The new species is closely related to O. subrufum (Lewis, 1888), distributed in Central and North-eastern China, the Korean Peninsula, Far East of Russia and Japan, and to O. nigropunctatum (Lewis, 1888), endemic to Japan. All three species are keyed, and distribution maps of all three species are presented.

Description of a new earthworm species of the genus Drawida (Oligochaeta: Moniligastridae) from Northeast China and Far East Russia

A new species of Drawida Michaelsen 1900, named Drawida ganini Zhang and Wu sp nov., is described from the material collected in the Muling River of Heilongjiang Province, Northeast China, and the adjacent region near Russia. The new species is morphologically similar to Drawida ghilarovi Gates 1969. The molecular data were more useful for comparison of D. ghilarovi samples. D. ganini is genetically different from D. ghilarovi by a p-distance value of 18.35 ± 1.37% based on the COI gene sequence data. Thus, Ganin and Atopkin's (2018) data validate taxonomical status of D. ganini as separated species.

The genus Coelichneumon Thomson in Japan (Hymenoptera, Ichneumonidae, Ichneumoninae).

In this taxonomic study, 29 species of the genus Coelichneumon Thomson, 1893 found in Japan are described in detail. For some species, other East Palaearctic material is also mentioned. Five of the species are new to science: Coelichneumon caerulogaster nov. sp. (from Hokkaido and Honshu), C. carinator nov. sp. (from Honshu; also Russia and Korea), C. cyanator nov. sp. (from Honshu), C. terebrator nov. sp. (from Honshu) and C. uchidai nov. sp. (from Honshu). Four species are newly reported from Japan: C. clypeatus (Uchida, 1955), C. decemguttatus Uchida, 1932, C. maritimensis Heinrich, 1980 and C. nobilis (Wesmael, 1857). C. femoralis Uchida, 1927 is newly recorded from Far East Russia and C. rufibasalis (Uchida, 1927) from China and Mongolia. C. birmanicus Heinrich, 1966 is newly synonymized under Ichneumon bivittatus Matsumura, 1912. C. coxalis Uchida, 1926 is newly synonymized under Ichneumon sinister Wesmael, 1848, and Ichneumon flavitarsis Smith, 1874 is newly synonymized under Ichneumon deliratorius Linnaeus, 1758. The female of C. rufibasalis (Uchida, 1927) and the male of C. maritimensis Heinrich, 1980 are described for the first time. For C. flavitarsis sensu Lee et al. non Smith, a new name, C. flavitarsator, is established and a lectotype designated. The genus Aglaojoppa Cameron, 1901 is newly synonymized under Coelichneumon. Hence, A. centummaculata (Christ, 1791) is transferred to Coelichneumon (rev. stat.). The specific names of A. rufofemoratus Cameron, 1903 and A. victoriae Heinrich, 1968 are preoccupied in Coelichneumon and two replacement names are proposed, Coelichneumon cameroni nom. nov. for the former and C. paravictoriae nom. nov. for the latter species.

Without Leaders, Mottos or Billboards: Fight for the City and Routine Resistance in the Private Sector of Cities in East Russia (Case of Khabarovsk)

The article examines the forms of routine resistance of the community that was established within the space of the Soviet private sector in the cities located in the eastern part of Russia. Despite active regular construction, these spaces still make up a significant part of cities. However, in contrast to the Soviet period, when living there was perceived as forced and temporary, today this form of residence is a conscious choice. The former private sector witnesses the emergence of the community, whose existence is based on values, social and communicative practices, and forms of economic activity that are noticeably different from the official ones. This community “produces space” that is appropriate to its lifestyle. For the official authorities (at the state and city levels), this space turns out to be “empty”, representing “promising areas of development”. Its population remains invisible to these authorities. This creates a latent conflict that gives rise to the forms of re sistance described in the article. With all the variety of such forms, there is one main thing that unites them — people’s desire to distance from the state and the city it regulates. The authors find out that another group of city dwellers with a much higher socio-economic status — residents of urban mansion districts — share the same aspiration. According to the authors, this desire can be explained by the fact that a resident of a Russian city has few opportunities to find soli da rity community within the existing urban structures and therefore builds his/her life “outside the city wall”, creating analogs of the pre-modern Euro pean municipalities. The remaining “urban” part of the city is increasingly turning into a feudal lord’s castle that from time to time sends troops to punish the “rebels”. As long as a feudal lord has an understanding that he really needs townspeople, and they have the opportunity to “escape” from the raid, the situation seems stable. When the raids become too frequent, and it is impossible to escape from them, the population will attack. At the moment, judging by the attitude of the group studied in the article to the rallies in defense of S.Furgal, ex-governor of Khabarovsk region, the authorities still have room for maneuver. However, for how long this situation will last remains to be seen.

Trends in and Prospects for the Coal Industry Development in Russia’s Eastern Regions

The paper presents an analysis of trends in coal industry development in Russia's eastern regions and its significance for the national coal industry. The study focuses on the prospects for the coal industry development in Russia's east and the potential directions of coal use there. The coal production and supplies for export are projected for the period up to 2035.

Alkaloids from the sea sponges as stimulants of growth, development and productivity of agricultural plants

The natural world of the Far East Russia has great potential for the detection and isolation of biologically active compounds that can increase productivity of agricultural plants in the zone of risky agriculture. Growth regulating activity of metabolites of marine organisms -alkaloids were studied. Damirone B (1), debromohymenialdisine (2), and dibromoagelaspongin (3) were tested in field conditions as growth stimulants of barley (Hordeum vulgare L.), wheat (Triticum aestivum L.) and common buckwheat (Fagopyrum esculentum Moench). It was shown that the stimulatory effects depend on the chemical structure of the alkaloids and the plant species. Compounds 1, 2, and 3 at different concentrations, stimulate growth and productivity of barley, wheat and buckwheat. Their introduction into practice will increase plant productivity, and hence the profitability of crop production.

Relevance of ddRADseq method for species and population delimitation of closely related and widely distributed wolf spiders (Araneae, Lycosidae)

Although species delimitation is often controversial, emerging DNA-based and classical morphology-based methods are rarely compared using large-scale samplings, even less in the case of widely distributed species that have distant, allopatric populations. In the current study, we examined species boundaries within two wolf spider species of the genus Pardosa (Araneae, Lycosidae), P. riparia and P. palustris. Wolf spiders constitute an excellent model for testing the relevance of traditional vs. modern methods in species and population delimitation because several closely related species are distributed over cross-continental geographic ranges. Allopatric populations of the two Pardosa species were sampled across Europe to Far East Russia (latitudinal range > 150°) and several dozen individuals were studied using morphological characters (morphometry of three measures for both sexes, plus five in males only and two in females only), DNA barcoding (COI sequencing) and double-digest restriction site associated DNA sequencing (ddRADseq). The results obtained allow for changing the taxonomic status of two Far East Russian populations to subspecies and ddRADseq proved to be a powerful tool for taxonomic research despite scarce sampling and inherent subjectivity of species delimitation in allopatry. Overall, this study pleads for both multi-criteria and more population-based studies in taxonomy.

Platinum mineralization and geochemistry of the Matysken zoned Ural-Alaskan type complex and related placer (Far East Russia)

Ural-Alaskan type complexes are the sources for unique placer platinum deposits and contain platinum-group minerals (PGM) within lodes. Such complexes occur along modern and ancient convergent tectonic margins and are comprised of dunite, wehrlite, clinopyroxenite and gabbro, which gradually interchange towards the marginal parts of the complex. In-situ PGM are largely restricted to chromitites, which are comprised of small veinlets and schlieren of chromian spinel in the dunite unit. PGM mineralization in chromitites can be extremely rich; however, their distribution is very sporadic, without any apparent regularity. Moreover, the role of accessory chromian spinel and post-magmatic overprinting of platinum group element (PGE) concentrations is poorly defined. Detailed studies of PGM assemblages, including those in chromitites, serpentine veinlets in dunites, and wehrlites, combined with PGE geochemistry could provide insights into the distribution and processes responsible for PGE accumulation.The Matysken complex in the Koryak Highlands (Far East Russia) is comprised of dunite, wehrlite, clinopyroxenite and gabbro units, and has a classic zoned structure, rendering it an excellent example of an Ural-Alaskan type complex, ideal for this case study. This locality contains mm-scale isoferroplatinum (Pt3Fe) nuggets that cement chromitites and occur as µm-scale euhedral inclusions in chromian spinel. Placer PGM assemblages in the nearby Matysken River consist of exactly the same assemblages of minerals that are found in dunites and chromitites but with larger compositional scatter, reflecting a complex history of alluvium accumulation, which was sourced from different eroded parts of the complex. Detailed textural investigations discovered a diverse array of hydrous silicate–related mineralization, including euhedral isoferroplatinum grains in chlorite matrix, isoferroplatinum–amphibole intergrowths, and a wide range of PGE, Fe and Cu alloys, sulfarsenides and antimonides, which formed in serpentine veinlets together with awaruite (Ni3Fe) and base metal sulfides. This provides further evidence that isoferroplatinum, which is widely accepted to be a magmatic mineral, may form under a wide range of conditions, including during serpentinization.Dunites have fractioned primitive mantle-normalized PGE patterns, typical of Ural-Alaskan type complexes, with strong enrichments in Pt and depletions in Ir, Ru and Pd. PGE, with an exception of Pd, are quite uniformly distributed in dunite containing accessory chromian spinel, with good correlations between PGE and Cr. This correlation, together with data from previous studies, allowed us to calculate the concentration of Pt in accessory chromian spinel (probably hosted as minute PGM inclusions), which is of the same grade as for chromitites (ppm levels). This suggests that the formation of chromitites does not concentrate PGE over Cr, but only assembles them into larger aggregates, causing the observed unevenness in the PGM distribution.

Paleocene–early Eocene post-subduction magmatism in Sikhote-Alin (Far East Russia): New constraints for the tectonic history of the Izanagi-Pacific ridge and the East Asian continental margin

New isotopic, geochemical and geochronological data justify the widespread occurrence of middle Paleocene to early Eocene (60–53 Ma) post-subduction felsic magmatism across the entire Sikhote-Alin territory (southeastern Russia), conform with previous observations in Northeast China, the southern Korean Peninsula, and the Inner Zone of Japan. This igneous activity in East Asia coincided with the reactivation (after tectonic quiescence between ~93–60 Ma) of left-lateral strike-slip displacements along the Tan-Lu and Central Sikhote-Alin faults and with the post-60 Ma cessation of subduction/accretion recorded in the Shimanto belt of SW Japan. The Sikhote-Alin post-subduction igneous A-type rocks present diverse mineralogical and geochemical features that suggest interactions of the subducting plate with anhydrous mantle upwelling through slab tears in the continental margin. The middle Paleocene–early Eocene magmatism is not related to subduction but is synchronous with strike-slip tectonics and the termination of accretionary prism development, suggesting a shift in tectonic regime from oceanic plate subduction at a convergent margin to parallel sliding and initiation of a transform continental margin. These new observations are inconsistent with the current tectonic model of 60–50 Ma Izanagi-Pacific ridge subduction beneath East Asian continental margin.

ТЭК азиатской России в меняющемся мире

The article examines the current state and possibilities for development of the energy complex in Russia’s Asian regions (territories to the East of the Urals) under the constraints of the globally promoted energy transition agenda. The authors consider these issues mainly from the point of view of the extent to which the development of the energy complex in accordance with the UN Sustainable Development Goals and ESG (Environment, Sustainability, Governance) paradigm can ensure more sustainable socio-economic development of the vast Russia’s territory. It is shown that lagging behind in development of scientific and production services in the East of Russia, production of specialized machinery and capabilities for deeper processing of energy resources significantly reduces the chances of achieving both the sustainable socio-economic development and reduction of carbon intensity in the area. Developing of procedures and approaches for the institutional structure of government regulation and management of the energy complex in the East of Russia in order to exploit its huge energy potential plays an important role in solving these problems. That is hardly achievable without the formation of feedback between exports of energy resources and the projects aimed at changing the structure of the economy of Russia’s Asian regions. The authors believe that the currently observed rapid growth in demand for domestic primary energy resources in China and the Asia-Pacific Region as a whole should not be treated as a stable long-term trend and one should not be entirely guided by it when making and implementing longterm structural decisions. Also, in order to increase the stability of the energy complex of Russia’s Asian regions and Russian economy as a whole, it is necessary to develop projects based on the forward and backward linkages between various economic sectors and regions.

Freshwater centric diatoms from Middle Miocene deposits of the Khanka Depression, Primorye Territory (Far East of Russia)

The centric diatom flora from the Middle Miocene deposits of the Khanka Depression of Primorye (Far East of Russia) was in detail studied. The centric diatoms were presented by 10 species and intraspecies taxa belonging to four genera (Aulacoseira Thwaites, Alveolophora Moiseeva et Nevretdinova, Ellerbeckia Crawford, Melosira Agard) and three orders (Aulacoseirales, Paraliales and Melosirales). A detailed study with the use of LM and SEM allowed us to establish the high morphologic variability of the predominant representatives of the genus Aulacoseira. The diagnoses for the Alveolophora tscheremissinovae, Ellerbeckia kochii, Melosira undulata species were supplemented. The comparison of the taxonomic compositions of the centric diatoms from the Khanka complex with the even-aged complexes from other regions has shown the wide spreading of the genus Aulacoseira taxa in the freshwater bodies during this time period.

On the issue of reindustrialization of the border regions in the East of Russia

This article is devoted to the prospects for the resumption of lithium production in the Trans-Baikal Territory, which can become one of the important “growth points” in the process of reindustrialization and, at the same time, will create new opportunities for improving the standard of living in the East of Russia. The resumption of production of lithium-containing products in Russia contributes to the formation of production chains, the products of which are fundamentally important for the spatial development of the regions in the country’s East. Domestic production of lithium for the development of renewable energy sources will make it possible to take a significant step in solving the accumulated environmental problems. In recent years, there has been a sharp rise in the prices of lithium-containing products on the world market. It is caused by the dynamic development of several high-tech sectors of the economy, among which the most significant is the production of lithium-ion batteries for the needs of renewable energy and the automotive industry. The high level of prices makes it possible to profitably develop Russian lithium deposits. The resumption of production at the Zavitinskoye field will become an important factor in the development of the Pervomaysky town.

Angiosperm diversification in the Early Cretaceous of Primorye, Far East of Russia

The Partizansk and Razdolnaya coal basins of Primorye, Far East of Russia, contain diverse early angiosperm fossils (pollen, leaves, and fruits). In this paper, we revise the previous data on early angiosperms of this region and summarize the results of our latest research. Age of the plant-bearing deposits was clarified using isotopic U-Th-Pb LA-ICP-MS and U-Pb ID-TIMS methods. Age of the upper part of the Lipovtsy Formation is 118 ± 1.4 Ma, which corresponds to the late Aptian. The early Albian age (109 ± 1 Ma) is assigned to the upper part of the Frentsevka Formation. The diversification of angiosperms in the Early Cretaceous of Primorye region and their systematic affinity are analyzed. Early representatives of Laurales, Ranunculales, Platanaceae, and probable Cercidiphyllaceae are revealed. New combination Pandanites ahnertii (Krysht.) Golovn., comb. nov. is created, and new species Araliaephyllum vittenburgii Golovn. et Volynets, sp. nov. is described. Reconstructions of herbaceous angiosperms from autochthonous locality Bolshoy Kuvshin are proposed.

An assessment of the regional development well-being taking into account the environmental component

The paper presents the results of socio-ecological and economic well-being estimation of the Russian regions using a multiplicative model, based on the A. Sen extended function. This model includes GRP per capita, share of the personal incomes in GRP, the regional cost of living index, the intra-regional income inequality and the integrated environmental index. It is defined as average of the specific environmental indices calculated on the basis of the following indicators: the share of the negative air, water and soil tests. Calculations have revealed that there is a significant interregional differentiation in the level of social well-being. The inclusion of the environmental component into the multiplicative model had a significant impact on the results of a comprehensive assessment of regional development. In some Russian regions, the environmentally adjusted level of well-being was significantly lower than the indicator that does not take this aspect into account. It is shown that the role of the environmental factors in the quality of life in the East of Russia is quite significant. The research novelty is to take into account the environmental component in assessing the well-being of the regions using a multiplicative model, based on the A. Sen extended function. The analysis results can be used in the process of making management decisions in the field of environmental and economic interactions, as well as in the preparation of strategic documents for sustainable regional development.

М.М. ПРИШВИН И КАЗАХСКАЯ СТЕПЬ: ПРОБЛЕМЫ ЭВОЛЮЦИИ РУССКОГО ОРИЕНТАЛИЗМА В ПЕРИОД ПОЗДНЕЙ ИМПЕРИИ

The article, based on the material of the Siberian Diary (1909), as well as the travelogues “Adam and Eve” (1909) and “The Black Arab” (1910), examines the features of the images of the Kazakh steppe in Mikhail Prishvin’s early works. All these texts are based on the materials of one journey, which the writer made from May to December 1909. The article attempts to understand the place of Prishvin’s steppe narrative in the discourse of Russian Orientalism in the late imperial period, when the attitude towards residents of the Asian outskirts in Russian literature underwent certain changes. The main question is whether Prishvin preserved the strategies of Russian Orientalism of the 19th century in his descriptions of the steppe and its nomadic and sedentary inhabitants, or he developed new principles for describing and inventing the inner East of Russia. Speaking about Russian Orientalism, the authors of the article proceed from the idea that this discourse is a product of an imperial culture that seeks to “discover the world” under the conditions of an imaginary division of the world into the colonizing West, the colonized East, and Russia, which is both the subject and object of colonization. Analyzing Kazakh travelogues in the context of Prishvin’s biography and works, as well as the cultural context of the colonial policy of the Russian Empire, the authors come to the conclusion that the writer does not create a special discourse about the East but continues the traditions of classical Russian literature of the 19th century. Describing the inhabitants of the steppe (Russian colonists, the imperial administration, as well as the nomadic and sedentary Turkic population), Prishvin bases on the fundamental oppositions of Russian Orientalism, which help to raise questions about Russia, the Russian character, the goals and means of the Russian expansion to the East: Russian/Asian, wild/civilized, real/imaginary. The specificity of Prishvin’s travelogues also lies in the fact that they were created at the intersection of many - scientific, journalistic, artistic, and administrative - discourses that make up Russian Orientalism. For this reason, a complex and largely contradictory position of the author is formed in the travelogues. Prishvin performs many contradictory roles: he is a humanist philosopher who sympathizes with the patriarchal world of the Kazakhs and the desire for freedom of the Russian people; he is an ethnographer scrupulously recording everything that he sees along the way; he is a romantic ready to dress up in oriental clothes and imagine the magical land of the East, which does not exist; he is an enlightened writer who observes the primitive culture and cruel customs of the Kazakhs and the Russian colonists. Prishvin made a great contribution to the design of a new evolutionary round of Russian Orientalism in the late empire: thanks to his essays of the Kazakh world, the imaginary literary map of Russia at the beginning of the 20th century received a new impetus for a detailed and multifaceted cultural development of the steppe frontier, without which a Russian person trying to determine their place in a world divided into the West and the East is already unthinkable.

«Для дополнения характеристики внутренней и внешней политики колчаковского правительства в Сибири»: срочное секретное письмо из Сибревкома наркому Г. В. Чичерину (9 апреля 1924 г.)

The publication introduces into the scientific circulation previously unknown sources about the foreign policy and financial and economic activities of the anti-Bolshevik authorities in the East of Russia in 1918–1920, as well as about departmental storage of documents in the financial authorities of Siberia during the first years of Soviets. The work is addressed to specialists studying international relations, financial policy and archiving during the Civil War and the first years after its end

СОВРЕМЕННИКИ ГРАЖДАНСКОЙ ВОЙНЫ В РОССИИ И ПРЕДСТАВИТЕЛИ «ТУМАННОГО АЛЬБИОНА»: ХАРАКТЕР ОТНОШЕНИЙ, ОТРАЖЕННЫЙ В КИНОФОТОДОКУМЕНТАХ БРИТАНСКИХ ИНТЕРВЕНТОВ 1918–1919 ГГ.

Despite the British support of the Russian White movement during such events as the intervention and the Civil War in Russia, the effective actions of Albion towards the anti-Bolshevik forces can hardly be considered friendly. For centuries, Great Britain acted as an opponent of Russia, and only in the first half of the 20th century because of Kaiser and later fascist Germany threats Great Britain and Russia established short-term allied relations. The study of assessments connected with Great Britain standpoint of certain historical events in our country, as well as the historical experience of relations with this long-standing opponent of Russia made this article topical. In the article the author attempts to convey the nature of the difficult relationship between the contemporaries of the Russian Civil War and the British interventionists, based on visual history and such sources as film and photo documents of the British Expeditionary Forces in the period of 1918–1919. In order to understand the contradictory nature of relations with the British, Russian Republic (earlier the Russian Empire) previous allies, the author aims at showing the prerequisites for the invasion of the Entente countries and changes in the strategy of British political forces in relation to Russia. The study was carried out within the framework of such an interdisciplinary branch of science as «military anthropology», where the object of study is «a man in war». The article presents not only an overview of British film and photo documents, but also their attribution made with the definition of copyright holders, places and time of filming, accompanied with identifying the authors of the film and photo documents involved in creating a visual image of the Civil War in Russia. The study is based on the historical-comparative method, which made it possible to determine the differences between Russian-British relations during the Civil War in all territories of the presence of British interventionists — in the North, South and East of Russia.

Aldan-Viluy province - a new oreand placer gold-bearing area in the East of Russia

Aldan-Viluy province - a new oreand placer gold-bearing area in the East of Russia

ИОРОХАНСКИЙ КОМПЛЕКС МАЛЫХ ИНТРУЗИЙ ВОСТОЧНОЙ ЧАСТИ БУРЕИНСКОГО МАССИВА: ГЕОЛОГИЯ, ВОЗРАСТ, ЗОЛОТОНОСНОСТЬ

In this paper we analyze and summarize some recently acquired data coupled with the findings of previous geological, geochronological and metallogenic studies on igneous rocks of the Iorokhan gold-bearing complex in the eastern part of the Bureya massif. Four phases, whose rocks are of hypabyssal and subvolcanic intrusive facies, are shown to define the structure of the Iorokhan complex of minor intrusions; characteristic features of their composition and structural and tectonic settings of localization are given; geological and geochronological data are reported on their age (103 ± 1.0–97.4 ± 6.5 Ma), i.e. late Albian–early Cenomanian. By the ratio of alumina, calcium and alkalis, most of their compositions correspond to I-type high-alumina magnesia and magnesia-ferruginous varieties (A/CNK < 1.1) with low concentrations of HFSE, including HREE. Melting of an amphibolitic source rock produced a melt that could be a deep source of the Iorokhan diorites. A brief description of the Noni deposit is given and the main factors contributing to the localization of gold mineralization are considered. The ranges of the Iorokhan magmatites in the East Bureya volcano-plutonic zone can be considered as one of the fragments of the boundary structure between the continental margin of the eastern part of the Bureya massif and the accretionary wedges of the Sikhote-Alin orogenic belt. The Iorokhan complex of minor intrusions is assumed to be a small fragment of the wide belt of Late Albian–Early Cenomanian magmatite occurrence in the southern Far East of Russia, which formed in a setting of transform continental margin and zones of compression associated with extension resulting in the development of pull-apart basins typical of such margins.