scholarly journals Mechanisms of accumulation of chemical elements in the peat deposit in east part of the Vasyugan Swamp (the Western Siberia)

2019 ◽  
Vol 486 (3) ◽  
pp. 350-353
Author(s):  
O. G. Savichev ◽  
A. K. Mazurov ◽  
M. A. Rudmin ◽  
N. E. Shakhova ◽  
V. I. Sergienko ◽  
...  
Keyword(s):  
Western Siberia ◽  
Depth Distribution ◽  
Chemical Elements ◽  
Lower Layer ◽  
West Siberia ◽  
Peat Deposit ◽  
Methane Cycle ◽  
Geochemical Studies ◽  
Filtration Properties ◽  
Alkaline Carbonate

The results of mineralogical-geochemical studies of the oligotrophic pine-fruticulose-sphagnum segment of the Vasyugan Swamp (West Siberia) in the winter of 2017 are presented. A mathematical model is developed for the depth distribution of chemical elements in water and acid extracts of peats, organo-mineral sediments, and inorganic soil. It is shown that two complex geochemical barriers related to the changes in filtration properties of soils and contributing to the formation and/or accumulation of Fe compounds and other chemical elements function in the peat deposit. The first (oxidizing, reduction, sulfide, and adsorption hydroxide) barrier is found approximately at a depth of 0.40-1.25 m; the second (alkaline carbonate and hydrolytic, adsorption hydroxide, clayey, and carbonate) barrier lies in the lower layer of the peat deposit (a depth of 2.25-2.50 m). The result obtained is important for understanding the production-destruction methane cycle.

scholarly journals Water–rock interaction within the oligotrophic peat bog (part of the Vasyugan Swamp, Western Siberia)

2019 ◽  
Vol 98 ◽  
pp. 01045
Author(s):  
Oleg Savichev ◽  
Aleksey Mazurov ◽  
Maxim Rudmin ◽  
Evgeniya Soldatova
Keyword(s):  
Western Siberia ◽  
Chemical Elements ◽  
Peat Deposit ◽  
Peat Bog ◽  
Bottom Part ◽  
Rock Interaction ◽  
Geochemical Conditions ◽  
Diffusion Transfer ◽  
And Diffusion ◽  
Water Rock Interaction

Geochemical conditions of the formation of various minerals were studied within the oligotrophic pine-shrub and sphagnum peat bog. It was shown that at least two complex barriers function within the peat deposit. These barriers correspond to the changes in the advective and diffusion transfer of substances and promote the immobilization of Fe and a number of other chemical elements. The upper complex geochemical (redox, sulfide and sorption) barrier occurs approximately at the depths of 0.40 to 1.25 m. The lower complex geochemical (alkaline and sorption) and mechanical barriers are located at the bottom part of the peat deposit (the depth of 2.25–2.50 m).

Mechanisms of Accumulation of Chemical Elements in a Peat Deposit in the Eastern Part of Vasyugan Swamp (West Siberia)

2019 ◽  
Vol 486 (1) ◽  
pp. 568-570 ◽  
Author(s):  
O. G. Savichev ◽  
A. K. Mazurov ◽  
M. A. Rudmin ◽  
N. E. Shakhova ◽  
V. I. Sergienko ◽  
...  
Keyword(s):  
Chemical Elements ◽  
West Siberia ◽  
Peat Deposit

The geosolitonic concept of high output hydrocarbon deposits formation

2021 ◽  
pp. 13-22
Author(s):  
R. M. Bembel ◽  
S. R. Bembel ◽  
M. I. Zaboeva ◽  
E. E. Levitina
Keyword(s):  
Western Siberia ◽  
Oil And Gas ◽  
Chemical Elements ◽  
Seismic Exploration ◽  
Oil And Gas Fields ◽  
Recoverable Reserves ◽  
Production Wells ◽  
Cumulative Production ◽  
Gas Fields ◽  
Hydrocarbon Deposits

Based on the well-known results of studies of the ether-geosoliton concept of the growing Earth, the article presents the conclusions that made it possible to propose a model of thermonuclear synthesis of chemical elements that form renewable reserves of developed oil and gas fields. It was revealed that local zones of abnormally high production rates of production wells and, accordingly, large cumulative production at developed fields in Western Siberia are due to the restoration of recoverable reserves due to geosoliton degassing. Therefore, when interpreting the results of geological and geophysical studies, it is necessary to pay attention to the identified geosoliton degassing channels, since in the works of R. M. Bembel and others found that they contributed to the formation of a number of hydrocarbon deposits in Western Siberia. When interpreting the results of geological-geophysical and physicochemical studies of the fields being developed, it is recommended to study the data of the ring high-resolution seismic exploration technology in order to identify unique areas of renewable reserves, which can significantly increase the component yield of hydrocarbon deposits.

scholarly journals Thermokarst lake waters across the permafrost zones of western Siberia

2014 ◽  
Vol 8 (4) ◽  
pp. 1177-1193 ◽  
Author(s):  
R. M. Manasypov ◽  
O. S. Pokrovsky ◽  
S. N. Kirpotin ◽  
L. S. Shirokova
Keyword(s):  
Western Siberia ◽  
Chemical Elements ◽  
Chemical Compositions ◽  
Thermokarst Lakes ◽  
Thermokarst Lake ◽  
Surface Areas ◽  
Discontinuous Permafrost ◽  
Latitudinal Position ◽  
Hydrochemical Composition ◽  
Lake Waters

Abstract. This work describes the hydrochemical composition of thermokarst lake and pond ecosystems, which are observed in various sizes with different degrees of permafrost influence and are located in the northern part of western Siberia within the continuous and discontinuous permafrost zones. We analysed the elemental chemical composition of the lake waters relative to their surface areas (from 10 to 106 m2) and described the elemental composition of the thermokarst water body ecosystems in detail. We revealed significant correlations between the Fe, Al, dissolved organic carbon (DOC) and various chemical elements across a latitude gradient covering approximately 900 km. Several groups of chemical elements that reflect the evolution of the studied water bodies were distinguished. Combining the data for the studied latitude profile with the information available in the current literature demonstrated that the average dissolved elemental concentrations in lakes with different areas depend specifically on the latitudinal position, which is presumably linked to (1) the elements leached from frozen peat, which is the main source of the solutes in thermokarst lakes, (2) marine atmospheric aerosol depositions, particularly near the sea border and (3) short-range industrial pollution by certain metals from the largest Russian Arctic smelter. We discuss the evolution of the chemical compositions observed in thermokarst lakes during their formation and drainage and predict the effect that changing the permafrost regime in western Siberia has on the hydrochemistry of the lakes.

scholarly journals IMMUNOCHEMICAL ANALYSIS OF RECOMBINANT CHIMERIC POLYPEPTIDE OspCgar+afz OF BORRELIA GARINII AND B. AFZELIIISOLATES

2016 ◽  
pp. 37-44
Author(s):  
VS. .. Karavaev ◽  
E. S. Oleinikova ◽  
M. Sh. Azaev ◽  
A. B. Beklemishev'
Keyword(s):  
Recombinant Proteins ◽  
Western Siberia ◽  
West Siberia ◽  
Amino Acid Sequences ◽  
Borrelia Garinii ◽  
Test Systems ◽  
Antigenic Activity ◽  
Escherichia Coli Cells ◽  
Antigenic Properties ◽  
Chimeric Polypeptide

Aim. Comparative study of antigenic properties of recombinant proteins OspCgar and OspCafz and recombinant chimeric polypeptide OspCgar+afZ, that contains amino acid sequences of mature immune dominant OspC proteins of West-Siberian isolates of Borrelia garinii (OspCgar) and B. afzelii (OspCafz), and evaluation of possibility of their use as antigens during creation of test-systems for serodiagnostics of Lyme borreliosis (LB) on the territory of Western Siberia. Materials and methods. Recombinant chimeric polypeptide OspCgar+afz and recombinant mature proteins OspCgar and OspCafz, obtained by expression of the corresponding genes in Escherichia coli cells, purified by affinity chromatography in Ni-NTA-sepharose CL-6B and studied by EIA method for the ability to bind antibodies from sera of LB patients. Results. A difference in sensitivity of determination by EIA method of specific IgM and IgG against borreliae in blood sera of LB patients with localized stage of the disease during use of OspCgar, OspCafz and OspCgar+afZ chimera as antigens was shown. Chimeric antigen OspCgar+afz was established to show higher antigenic activity compared with each of the OspCgar or OspCafZ antigens separately. Conclusion. The results of the study allow to examine the recombinant chimeric polypeptide OspCgar+afz as a possible component during creation of test-systems for serodiagnostics of LB on the territory of West Siberia.

scholarly journals Distribution Profile of Chemical Elements during the Last 13 Thousand Years from the Sediments of Maloye Yarovoe Lake (Western Siberia, Russia)

Water ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 3001
Author(s):  
Marina Kolpakova ◽  
Olga Gaskova ◽  
Svetlana Borzenko ◽  
Sergey Krivonogov ◽  
Olga Naymushina ◽  
...  
Keyword(s):  
Organic Matter ◽  
Western Siberia ◽  
Chemical Elements ◽  
Water Evaporation ◽  
Organic Matter Degradation ◽  
Distribution Profile ◽  
Rock Interaction ◽  
Radiocarbon Dates ◽  
Kulunda Steppe ◽  
Lake Stage

The article presents the studies on understanding the chemical evolution of Maloye Yarovoe lake that is located in the semi-arid landscape of and represent the most widespread chemical type of saline lake (Cl-Na) on the territory of Kulunda steppe (south of Western Siberia). The lake has gone through several changes in its state which are well represented in its sediments: section 1 (4.52–4.97 m) represents the subbase; section 2 (3.0–4.57 m) corresponds to a “shallow lake” stage and contains two sublayers; section 3 (0–2.25 m) illustrates an increase in erosion of the shoreline and corresponds to a “deep lake” stage. The extrapolation of radiocarbon dates suggests that the most significant changes in the state of the lake occurred at about 6.5–7.1 ka BP (transition from a small lake to a large one with intensified coastal erosion) and at about 5.69 and 3.5 ka BP (increase in the organic component). The results of sequential extraction of elements correspond to chemical changes occurred in a certain time of the lake state by changing in their distribution level and fraction type along the core. The results of lake water evaporation and organic matter degradation modelling performed in Phreeqc for oxic and anoxic condition showed the following stages of chemical divides could be expected in case of further lakes desiccation: Halite—Epsomite—Bischofite/Carnalite with possibility of Nahcolite precipitation in carbonate enriched periods (summer and autumn periods of organic matter degradation). Water–rock interaction processes in combination with biogeochemical reactions affect drastically not only the migration features of elements in water and sediments, but also the type of mineral crystallization in lake sediments.

scholarly journals The «red snow» of the Polar Urals (Western Siberia)

2019 ◽  
Vol 16 ◽  
pp. 00022
Author(s):  
Yuriy Naumenko
Keyword(s):  
Sea Level ◽  
Plant Communities ◽  
Western Siberia ◽  
West Siberia ◽  
Polar Urals ◽  
Snow Samples ◽  
The Polar Urals

Pink-red colored snow fields were sampled in the area of Ochety Lake (the Polar Urals, West Siberia) at the altitude of 272 m above the sea level in August 2019. Zygospores of Chlamydomonas nivalis prevailed in plant communities. Altogether, 9 species of algae have been discovered in snow samples: 7 species of Cyanoprokaryota, 1 species of Bacillariophyta and 1 species of Chlorophyta.

SCREENING OF SOFT WHEAT VARIETY OF KASIB NURSERY TO THE BROWN AND STEBLE MILDEW IN THE CONDITIONS OF WESTERN SIBERIA

2018 ◽  
Vol 12 (4) ◽  
pp. 61-66
Author(s):  
Владимир Шаманин ◽  
Vladimir Shamanin ◽  
Инна Потоцкая ◽  
Inna Potockaya ◽  
Олег Кузьмин ◽  
...  
Keyword(s):  
Stem Rust ◽  
Western Siberia ◽  
Wheat Variety ◽  
West Siberia ◽  
Soft Wheat ◽  
Forest Steppe ◽  
Wheat Varieties ◽  
Rust Diseases ◽  
Resistant Varieties ◽  
Set Up

In connection with climate warming and, consequently, the deterioration of phytopathological situation, associated with the emergence of aggressive races of fungal diseases, as well as the cultivation of susceptible varieties on the main wheat sowing area in Western Siberia, it is important to expand the genotypic variety of wheat varieties and to search for new sources of long-term sustainability. The results of the assessment of spring soft wheat varieties of the KASIB breeding nursery, set up jointly by the scientific institutions of Western Siberia, Kazakhstan and CIMMYT International Center for the Improvement of Corn and Wheat are presented in the conditions of the southern forest-steppe of West Siberia. The research was conducted in 2011-2016, using field and laboratory methods. The results of the assessment of susceptibility of KASIB varieties to brown and stem rust have shown, that varieties with high resistance prevail among resistant varieties in all phases of plant development, which indicates targeted selection for immunity with genes of race-specific and age resistance. The use of cluster analysis made it possible to identify significant differences in productivity and resistance to rust diseases of the varieties of KASIB program. Wheat varieties from KASIB are underlined: 14, 15 - Lutestsens 141/03-2 and Sigma (SibNIISKh), from KASIB nursery 16, 17 - Erytrospermum 85-08 (Omsk SAU), Lutestsens 6/04-4 and Lutestsens 186/04- 61 (SibNIISKh), resistant to brown and stem rust, exceeding in terms of yield standards, which are recommended to be used as a starting material for wheat selection in Western Siberia.

scholarly journals The mesolithic Baigara human: mineralogical-geochemical studies, paleoecological reconstructions and history of early human migrations to Western Siberia

2021 ◽  
Vol 5 ◽  
pp. 5-26
Author(s):  
V. I. Silaev ◽  
◽  
P. A. Kosintsev ◽  
V. N. Filippov ◽  
D. V. Kiseleva ◽  
...  
Keyword(s):  
Late Pleistocene ◽  
Western Siberia ◽  
Modern Human ◽  
Human Bone ◽  
History Of ◽  
Geochemical Studies ◽  
First Time ◽  
Paleoecological Reconstructions ◽  
Early Human

A modern human bone of the Mesolithic age, found for the first time in Western Siberia, was studied by the number of mineralogical-geochemical methods. Based on the results obtained, the conclusions about paleoecology, food types, and history of human migrations in the Late Pleistocene — Holocene in Siberia presented

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