Accumulation and Average Contents of Trace Elements in the High-Moor Peat of Tomsk Region (Western Siberia, Russia)

Mezhibor, Antonina; Арбузов, Сергей Иванович; Рихванов, Леонид Петрович

doi:10.1260/0144-5987.27.6.401

Cited by 15 publications

(6 citation statements)

References 11 publications

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“…The peat type reflects the nature of the water and mineral nutrition of bog vegetation, the remnants of which form peat. Higher trace element concentrations in peat were previously described in the studied region [8,25,26], and some mineral phases such as monazite, xenotime, crandallite group, and zircon [23] were found with the interpretation of their source as atmospheric dust. The aim of this work was to study the conditions for the formation and distribution of authigenic mineral forms in a peat deposit to evaluate possible metal sources and mechanisms of their mobilization and concentration.…”

Section: Introductionsupporting

confidence: 58%

Authigenic and Detrital Minerals in Peat Environment of Vasyugan Swamp, Western Siberia

et al. 2018

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Studies of mineral-forming processes in modern peat bogs can shed light on metal concentrations and their cycling in similar environments, especially in geological paleoanalogs. In terms of the mineralogical and geochemical evolution of peat bog environments, the Vasyugan Swamp in Western Siberia is a unique scientific object. Twelve peat samples were collected from the Vasyugan Swamp up to the depth of 275 cm at 25 cm intervals. The studied peat deposit section is represented by oligotrophic (0–100 cm), mesotrophic (100–175 cm), and eutrophic (175–275 cm) peat, and this is underlain by basal sediments (from 275 cm). About 30 minerals were detected using scanning electron microscopy (SEM), X-ray diffraction (XRD), and Raman spectroscopy. The observed minerals are divided into detrital, clay, and authigenic phases. The detrital minerals found included quartz, feldspar, ilmenite, rutile, magnetite, zircon, and monazite. When passing from basal to oligotrophic bog sediments, the clay minerals changed from illite-smectite to kaolinite. Authigenic minerals are represented by carbonates (calcite and dolomite), iron (hydro-)oxides, galena, sphalerite, pyrite, chalcopyrite, Zn-Pb-S mineral, barite, baritocelestine, celestine, tetrahedrite, cassiterite, REE phosphate, etc. The regular distribution of mineral inclusions in peat is associated with the (bio)geochemical evolution of the environment. The formation of authigenic Zn, Pb and Sb sulfides is mainly confined to anaerobic conditions that exist in the eutrophic peat and basal sediments. The maximum amount of pyrite is associated with the interval of 225–250 cm, which is the zone of transition from basal sediments to eutrophic peat. The formation of carbonate minerals and the decreasing concentration of clay in the association with local sulfide formation (galena, sphalerite, chalcopyrite, stibnite) begins above this interval. The peak of specific carbonation appears in the 125–150 cm interval of the mesotrophic peat, which is characterized by pH 4.9–4.5 of pore water. Kaolinite is the dominant clay mineral in the oligotrophic peat. Gypsum, galena, chalcopyrite, sphalerite, and relicts of carbonate are noted in association with kaolinite. Changes in oxygen concentrations are reflected in newly formed mineral associations in corresponding intervals of the peat. This can be explained by the activity of microbiological processes such as the anaerobic oxidation of methane (AOM) and bacterial sulfate reduction (BSR), expressed in specific carbonatization (100–225 cm) and sulfidization (175–250 cm), respectively.

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Section: Introductionsupporting

confidence: 58%

Authigenic and Detrital Minerals in Peat Environment of Vasyugan Swamp, Western Siberia

et al. 2018

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“…Table 1. Mean contents of some trace elements in peat bogs of Tomsk region (Russia), mg kg -1 (Mezhibor et al, 2009).…”

Section: Resultsmentioning

confidence: 99%

“…Cr concentration in peat generally reflects the amount of mineral matter present (Shotyk et al, 1990). Tomsk-Seversk industrial agglomeration is notable for high concentrations of Cr in peat because of the industrial specificity of this area (Mezhibor et al, 2009).…”

Section: Crmentioning

confidence: 99%

Trace Elements in Peat Bogs of Tomsk Region (South Siberia, Russia)

Mezhibor

Арбузов

Arkhipov

2013

Energy Exploration & Exploitation

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16 peat bogs of Tomsk region (in Siberia) were used to study trace elements concentrations in ombrotrophic peat. The calculations of concentration coefficient in relation to the sedimentary rocks allowed us to determine some elements which tend to accumulate in ombrotrophic peat of Tomsk region. They are Au, Br, Sr, Ba, Fe, and Cr. For selective trace elements we considered spacial variability of their mean contents in the ombrotrophic peat of Tomsk region. Together with the study of vertical distribution of trace elements in the studied peat bogs we outlined factors influencing their accumulation in peat. Lithological and mineral composition of surrounding territories plays role in the accumulation of Cr, Sc, Br, Au, and lanthanides, climatic conditions and necessity for living plants cause Ca variations. Cr, Sc, lanthanides and U are also actively accumulated in the peat near industrial cities in the south of Tomsk region.

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“…The combustion of these a coal produces fly and bottom ashes that are characterized by a high content of valuable elements such as vanadium, nickel, molybdenum, uranium, thorium, sulfur and non-burnt carbon (Davydova, 2005;. Metal contamination is a significant problem in many manufacturing residues, because it is well known that elements such as cadmium, chromium, lead, nickel, and vanadium are potential risks in the environment even at low concentrations (Paul et al, 2006;Ilander and Vaisanen, 2009;Mezhibor et al, 2009). In the last few decades, ICP-OES and ICP-MS have popularly been applied to analyze a wide range of samples including coal and coal ash by virtue of their capability of simultaneous analysis of multi-elements with excellent reliability and sensitivity.…”

Section: Resultsmentioning

confidence: 99%

Microwave Acid Digestion for the Determination of Metals in Subbitumnious Coal Bottom Ash by ICP-OES

Saydut

2010

Energy Exploration & Exploitation

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The development of precise and easy determination method for the metals in fossil fuel is the essential factor for the study of problems which are caused by the existence of metals in fuel. Coal contains many kinds of mineral matter elements including metals derived from its generation. The sample preparation method developed for metal determination in coal by spectroanalytical technique is dry ashing, and wet acid microwave digestion. Microwave-acid digestion (MW-AD) followed by inductively coupled plasma-optical emission spectrometry (ICP-OES) was examined for the determination of metals (Cd, Co, Cr, Cu, Fe, Mn, Mo, Ni, Pb, Zn) in coal bottom ash (CBA). Subbitumnious coal from Hazro deposits in SE Anatolia of Turkey has been used in this study. Metals in coal gave good recoveries for their certified or reference values.

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Accumulation and Average Contents of Trace Elements in the High-Moor Peat of Tomsk Region (Western Siberia, Russia)

Cited by 15 publications

References 11 publications

Authigenic and Detrital Minerals in Peat Environment of Vasyugan Swamp, Western Siberia

Authigenic and Detrital Minerals in Peat Environment of Vasyugan Swamp, Western Siberia

Trace Elements in Peat Bogs of Tomsk Region (South Siberia, Russia)

Microwave Acid Digestion for the Determination of Metals in Subbitumnious Coal Bottom Ash by ICP-OES

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