Heavy Metals in Cryozemes of Western Yakutia

Gololobova, Anna

doi:10.5593/sgem2019/3.2/s13.032

Cited by 5 publications

(7 citation statements)

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“…The values of the regional background were calculated from the geometric mean content of mobile forms of trace elements in a series of 212 soil samples, which included samples of surface soil horizons from natural undisturbed landscapes of the Khannya-Nakyn interfluve outside the impact zone of mining and beneficiation facilities [43,44].…”

Section: Volumes Of Soil and Soil Sampling By Years Of Investigationsmentioning

confidence: 99%

“…Permafrost soils are attributed to the trunk of primary, postlithogenic, organogenic, and synlithogenic soil formation and represent different subtypes of cryogenic soils. The structure of the soil cover of the Nyurba Mining and Processing Division industrial site, as well as the entire area of the Khannya-Nakyn interfluve, is dominated by cryozems, 84 % of the total area, which are characterized by a thin, weakly differentiated soil profile with pronounced cryoturbation, leading to disruption of the integrity of genetic horizons and mixing of soil material [44]. Table 2 shows the main physical and chemical properties of cryozems on the example of three soil sections, the most common cryozem types in the area.…”

Section: Volumes Of Soil and Soil Sampling By Years Of Investigationsmentioning

confidence: 99%

“…A weak correlation was noted for Ni and Zn with pH, Mn and Cd with organic matter, Mn, Cd, and Pb with physical clay. It was found out in [44] that the fractions of fine dust and silt in cryozems bind the greatest number of elements: Zn, Ni, Cr, Cu, Pb, and As.…”

Section: Volumes Of Soil and Soil Sampling By Years Of Investigationsmentioning

confidence: 99%

“…Therefore, to analyse the spatial relationship of the anomalies formed in the soil cover with the supposed sources of their occurrence, it is necessary to consider in more detail some climatic features of the Khannya-Nakyn interfluve. Climatically, the area belongs to the subarctic zone of the Siberian region [44]. Climatic conditions are described by data from the nearest meteorological stations of the Yakutsk Department for Hydrometeorology and Environmental Monitoring, Chumpuruk and Eyik, 50 km to the south and 112 km to the north, respectively.…”

Section: Volumes Of Soil and Soil Sampling By Years Of Investigationsmentioning

confidence: 99%

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Геохимические Свойства И Трансформация Микроэлементного Состава Почв При Разработке Коренных Месторождений Алмазов В Якутии

Legostaeva

Gololobova

Popov

et al. 2023

PMI

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Extraction of diamonds from primary deposits in Siberia is associated with the development of kimberlite pipes in challenging environmental conditions, accompanied by a complex impact on the environment. The article presents the results of monitoring the soil cover of the Nakyn kimberlite field in the Yakutia diamond province, which is affected by the facilities of the Nyurba Mining and Processing Division. Development of primary diamond deposits has a large-scale impact on the subsoil, topography, and soil cover: creation of the world's largest quarries, formation of dumps more than 100 m high, arrangement of extensive tailings, formation of solid and liquid industrial wastes of various chemical composition. The research is aimed at studying the spatial and temporal patterns of the technogenic impact on the soil cover, identifying the nature and level of transformation of the microelement composition of soils based on the analysis of the intra-profile and lateral distribution of mobile forms of trace elements. The study targets in 2007-2018 were zonal types of permafrost soils of northern taiga landscapes, cryozems, occupying 84 % of the total study area, which are characterized by biogenic accumulation of mobile forms of Ni, Mn, and Cd in the upper AO, Acr horizons, and Cr, Ni, Co, Mn, Cu in the suprapermafrost CR horizon. We found out that the contamination of the soil cover of the industrial site at the Nyurba Mining and Processing Division is of a multielement nature with local highly to very highly contaminated areas. Over a ten-year observation period, areas of stable soil contamination are formed, where the main pollutants are mobile forms of Mn, Zn, Ni. We suggest that against the background of a natural geochemical anomaly associated with trap and kimberlite magmatism, technogenic anomalies are formed in the surface horizons of soils. They are spatially linked to technogenically transformed landscapes. One of the sources of pollutants is the dispersion of the solid phase of dust emissions in the direction of the prevailing winds, which leads to the formation of soils with abnormally high contents of mobile forms of Mn, Zn, Ni.

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Section: Volumes Of Soil and Soil Sampling By Years Of Investigationsmentioning

confidence: 99%

Section: Volumes Of Soil and Soil Sampling By Years Of Investigationsmentioning

confidence: 99%

Section: Volumes Of Soil and Soil Sampling By Years Of Investigationsmentioning

confidence: 99%

Section: Volumes Of Soil and Soil Sampling By Years Of Investigationsmentioning

confidence: 99%

See 2 more Smart Citations

Геохимические Свойства И Трансформация Микроэлементного Состава Почв При Разработке Коренных Месторождений Алмазов В Якутии

Legostaeva

Gololobova

Popov

et al. 2023

PMI

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“…The number of papers devoted to various aspects of ecological and geochemical studies or ecological and geochemical assessment of the consequences of mining activities is extremely large [4][5][6][7][8][9][10][11][12][13]. Various relevant methodological recommendations and suggestions for improving the methodology and technology of ecological and geochemical study of industrial and urban areas have been developed.…”

Section: Introductionmentioning

confidence: 99%

Geochemical Risks of Diamond Mining in Siberia

2020

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Geochemical risk is caused by the release of hazardous chemicals to the earth surface. Primary diamond deposits are located in difficult mining and geological conditions. They represent natural geochemical anomalies associated with the mineral composition of rocks and groundwater, which contain a number of impurity elements with high toxic properties (Tl, Di, As, Cd, Hg), increased concentrations of heavy metals (Cu, Zn, Pb, Ti, V and others). The paper presents the physical-geographical and mining-geological conditions of the diamondiferous region, where three large mining and processing divisions operate: Udachninsky, Aikhalsky and Nyurbinsky. pH, organic matter (humus), total nitrogen, physical clay were identified in the study samples, by using potentiometric, photoelectric colorimetric, spectrophotometric methods and pipette method for particle size analysis. Gross and mobile forms of trace elements were determined by atomic absorption and emission spectrometry. The groups of elements were identified, that determined the natural and man-made anomalies. The accumulation of Cr, Ni and Co determines the influence of kimberlite magmatism in general. Cu, Sr and Li are accumulated in the soils of the Daldyn-Alakit diamond-bearing region. Increased concentrations of Mn and Cu are typical in the soils of the Sredne-Markhinsky diamond-bearing region. An assessment of the ecological and geochemical state of the study areas was carried out according to the indicator of total pollution (Zc), which is the sum of the excess of the concentration coefficients of chemical elements accumulating in anomalies. Areas of pollution and zones of the greatest risk are localized, which occupy up to 75% of the total area of industrial sites. They confined to quarry-dump complexes and to areas of impact of tailing dumps of processing plants.

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Long-term geochemical monitoring of the soil cover in the impact zone of diamond mining enterprises: a case study in the Nakyn kimberlite field, Russia

Legostaeva

Gololobova

2021

Environ Monit Assess

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Heavy Metals in Cryozemes of Western Yakutia

Cited by 5 publications

References 0 publications

Геохимические Свойства И Трансформация Микроэлементного Состава Почв При Разработке Коренных Месторождений Алмазов В Якутии

Геохимические Свойства И Трансформация Микроэлементного Состава Почв При Разработке Коренных Месторождений Алмазов В Якутии

Geochemical Risks of Diamond Mining in Siberia

Long-term geochemical monitoring of the soil cover in the impact zone of diamond mining enterprises: a case study in the Nakyn kimberlite field, Russia

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