Molecular and cytogenetic evidence for the occurrence of the East European vole Microtus rossiaemeridionalis (Arvicolinae, Rodentia) in the North of West Siberia

Abstract Recent revision of the Pleistocene glaciation boundaries in northern Eurasia has encouraged the search for nonglacial geological records of the environmental history of northern West Siberia. We studied an alluvial paleosol-sedimentary sequence of the high terrace of the Vakh River (middle Ob basin) to extract the indicators of environmental change since Marine Oxygen Isotope Stage (MIS) 6. Two levels of the buried paleosols are attributed to MIS 5 and MIS 3, as evidenced by U/Th and radiocarbon dates. Palynological and pedogenetic characteristics of the lower pedocomplex recorded the climate fluctuations during MIS 5, from the Picea-Larix taiga environment during MIS 5e to the establishment of the tundra-steppe environment due to the cooling of MIS 5d or MIS 5b and partial recovery of boreal forests with Picea and Pinus in MIS 5c or MIS 5a. The upper paleosol level shows signs of cryogenic hydromorphic pedogenesis corresponding to the tundra landscape, with permafrost during MIS 3. Boulders incorporated in a laminated alluvial deposit between the paleosols are dropstones brought from the Enisei valley by ice rafting during the cold MIS 4. An abundance of eolian morphostructures on quartz grains from the sediments that overly the upper paleosol suggests a cold, dry, and windy environment during the MIS 2 cryochron.

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Peat soils of boreal regressive bogs in West Siberia: Problems of biological diagnostics and systematics

Dokuchaev Soil Bulletin ◽

10.19047/0136-1694-2016-84-61-74 ◽

2016 ◽

pp. 61-74 ◽

Cited By ~ 1

Author(s):

E. A. Shishkonakova ◽

N. A. Avetov ◽

T. Yu. Tolpysheva

Keyword(s):

Soil Classification ◽

West Siberia ◽

Botanical Composition ◽

Peat Soils ◽

Surface Horizon ◽

The North ◽

Sphagnum Bogs ◽

Russian Soil ◽

Peat Surface ◽

The Difference

In this paper we consider plant (geobotanical) indicators of soils, occurring in regressive bogs in the north taiga subzone of West Siberia. The specificity of regressive bogs is the difference between current vegetation and botanical composition of the peat surface horizon, which complicates their biological diagnostics. The data on peat botanical composition, degree of decomposition and thickness are presented. Destructive oligotrophic peat soils, the allocation of which is provided in the actual Russian soil classification at the level of subtype, occur in palsa bogs under shrub-lichen vegetation. Their indicators include lichens: Cladonia stellaris, C. rangiferina, C. stygia, C. arbuscula, C. mitis, Alectoria ochroleuca, Сetraria islandica, C. laevigata, Flavocetraria cucullata, F. nivalis, Govardia nigricans. A new subtype - peat oligotrophic regressive soils - which occurs in non-freezing bog is suggested. The indicators of this soil subtype in pine-shrub-sphagnum bogs are lichens Cladonia cenotea, C. chlorophaea, C. coniocraea, C. cornuta, C. crispata, C. deformis, C. gracilis, C. fimbriata, C. mitis, C. ochrochlora, C. pleurota, C. polydactyla, C. pyxidata, C. rangiferina, C. stellaris, C. subulata, C. sulphurina and liverwort Mylia anomala . The indicators of regressive soils in bog hollows are mainly liverwort Cladopodiella fluitans , mosses Warnstorfia fluitans , W. exannulata , and lichen Cetrariella delisei .

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Distribution of Microfossils in the Vendian Deposits of the Orsha Depression of the East European Platform, Belarus

Stratigraphy and Geological Correlation ◽

10.1134/s0869593821060034 ◽

2021 ◽

Vol 29 (6) ◽

pp. 627-640

Author(s):

E. Yu. Golubkova ◽

O. F. Kuzmenkova ◽

E. A. Kushim ◽

A. G. Laptsevich ◽

S. S. Mankievič ◽

...

Keyword(s):

East European Platform ◽

Taxonomic Composition ◽

Northwestern Part ◽

East European ◽

The Third ◽

The North ◽

Upper Vendian

Abstract— The complete sections of the Lower and Upper Vendian of the East European Platform were opened in the boreholes of Belarus. This allows us to consider this region as a stratotype area. In order to update the paleontological characteristics of the Vendian, organic-walled microfossils from the Bogushevsk-1, Bogushevsk-2 (Liozno), and Lepel-1 reference boreholes drilled in the north of the Orsha Depression were studied. The transitive assemblage I with Leiosphaeridia minutissima–Leiosphaeridia tenuissima was recognized in the Lower Vendian Liozno Formation of the Volyn Series and the Upper Vendian Kotlin Formation. The Redkino microfossil assemblages were identified at three stratigraphic levels in the Nizy, Selyava, and Chernitsa formations: assemblage II with Morania zinkovi, assemblage III with Morania zinkovi–Tynnia precambrica, and assemblage IV with Morania zinkovi–Tynnia precambrica–Striatella coriacea, respectively. The Kotlin assemblage V with Vendotaenia antiqua–Primoflagella speciosa was distinguished in the upper part of the Kotlin Formation (Bogushevsk-1 borehole). On the basis of the taxonomic composition, assemblages III and IV are correlated with the first Redkino biota of the Starorusskaya Formation; assemblage V is correlated with the third Kotlin biota of the Vasileostrovskaya Formation of the northwestern part of Russia. Our data show a high biostratigraphic potential of organic-walled microfossils, which should be used to substantiate regional stratigraphic units of the Upper Vendian in the updated stratigraphic scheme of the East European Platform.

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Tectonic Evolution of Gas Traps in the North of West Siberia

Proceedings 76th EAGE Conference and Exhibition 2014 ◽

10.3997/2214-4609.20141328 ◽

2014 ◽

Author(s):

E. Surikova

Keyword(s):

Tectonic Evolution ◽

West Siberia ◽

The North

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Chronology of the Last Deglaciation in the Southeastern Baltic Region on the Basis of Recent OSL Dates

Geochronometria ◽

10.2478/v10003-010-0011-7 ◽

2010 ◽

Vol 36 (-1) ◽

pp. 47-54 ◽

Cited By ~ 6

Author(s):

Anto Raukas ◽

Wojciech Stankowski ◽

Vitālijs Zelčs ◽

Petras Šinkunas

Keyword(s):

Outer Zone ◽

East European Plain ◽

Last Deglaciation ◽

Baltic Region ◽

East European ◽

The North ◽

Dating Methods ◽

History Of ◽

Close Cooperation ◽

The Last Deglaciation

Chronology of the Last Deglaciation in the Southeastern Baltic Region on the Basis of Recent OSL DatesThe study of the deglaciation chronology in the south-eastern Baltic Region belonging to the outer zone of the last Pleistocene glaciation has a long history. The Finnish investigator H. Hausen (1913) who worked in the north-western portion of the East-European Plain at the beginning of the 20thcentury was the first to attempt a reconstruction of the course of glacial retreat during the last glaciation. At that time investigators had no physical dating methods and the time scale based on varvometric method, introduced by the Swedish geologist G. de Geer (1912) who divided the deglaciation history of Scandinavia into Daniglacial, Gotiglacial and Finiglacial, each of which had different palaeoglaciological conditions. During last decades different dating methods, including14C, ESR, luminescence methods and10Be techniques have been used, but they could not help essentially improve the existing stratigraphical charts and many problems of topical interest in the history of deglaciation have not been solved yet. During last years the first two authors have studied the suitability of OSL method for the geochronological purposes, paying the most attention to the waterlaid sediments. In the first step they have found the most promising genetical varieties of glaciofluvial sediments (glaciofluvial deltas and sandurs) and in this paper they widened the study area to all three Baltic states with close cooperation with Latvian and Lithuanian colleagues. The obtained results demonstrated, that not all mineral grains in the uppermost glaciofluvial and glaciolacustrine sediments were fully bleached during the last deglaciation. Probably the older sediments also influenced to the luminescence results. It means, that stratigraphic conclusions based on single dates or their small sets are inadmissible and in each case luminiscence dating requires a verification using other methods.

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Impact of climate and humans on the range dynamics of the woolly mammoth (Mammuthus primigenius) in Europe during MIS 2

Quaternary Research ◽

10.1017/qua.2018.54 ◽

2018 ◽

Vol 90 (3) ◽

pp. 439-456 ◽

Cited By ~ 4

Author(s):

Adam Nadachowski ◽

Grzegorz Lipecki ◽

Mateusz Baca ◽

Michał Żmihorski ◽

Jarosław Wilczyński

Keyword(s):

East European Plain ◽

Population Fluctuations ◽

Mammuthus Primigenius ◽

Radiocarbon Dates ◽

Oxygen Isotope Stage ◽

Maximum Expansion ◽

East European ◽

The North ◽

Almost All ◽

Woolly Mammoth

AbstractThe woolly mammoth (Mammuthus primigenius) was widespread in almost all of Europe during the late Pleistocene. However, its distribution changed because of population fluctuations and range expansions and reductions. During Marine Oxygen Isotope Stage 2 (MIS 2), these processes were highly dynamic. Our analyses of 318 radiocarbon dates from 162 localities, obtained directly from mammoth material, confirmed important changes in mammoth range between ~28.6 and ~14.1 ka. The Greenland stadial 3 interval (27.5–23.3 ka) was the time of maximum expansion of the mammoth in Europe during MIS 2. The continuous range was soon fragmented and reduced, resulting in the disappearance of Mammuthus during the last glacial maximum from ~21.4 to ~19.2 ka in all parts of the North European Plain. It is not clear whether mammoths survived in the East European Plain. The mammoth returned to Europe soon after ~19.0 ka, and for the next 3–4 millennia played an important role in the lifeways of Epigravettian societies in eastern Europe. Mammoths became extinct in most of Europe by ~14.0 ka, except for core areas such as the far northeast of Europe, where they survived until the beginning of the Holocene. No significant correlation was found between the distribution of the mammoth in Europe and human activity.

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THE RESULTS OF NARROW LEAVED LUPINE VARIETIES EVALUATING FOR ECONOMICALLY VALUABLE TRAITS AND ADAPTABILITY TO THE BRYANSK REGION CONDITIONS

Vestnik of the Russian agricultural science ◽

10.30850/vrsn/2021/5/15-17 ◽

1970 ◽

pp. 15-17

Author(s):

P. А. Ageeva ◽

М. V. Matyukhina ◽

N. А. Pochutina ◽

O. M. Gromova

Keyword(s):

Grain Yield ◽

Wide Spectrum ◽

West Siberia ◽

Climatic Conditions ◽

Breeding Lines ◽

North West ◽

The North ◽

Grain Productivity ◽

Phosphorus And Potassium ◽

Kaliningrad Region

The narrow-leafed lupin (Lupinus angustifolius L.) is a valuable legumes crop used as forage and green manure which is adapted to wide spectrum of soil-and climatic conditions; the crop has short domestication history. The protein content in its seeds and in dry matter of green mass varies from 30.0 to 37.0% and from 16.0 to 22.0 % respectively and depends on ecotype and soil-and-climatic conditions. This lupin specie can accumulate to 300 kg/ha symbiotic nitrogen in biomass and assimilates phosphorus and potassium of heavy available soil layers. It is very technological suitable for common used machinery systems. The State List of breeding achievements of Russia recommends the following regions for lupin cultivation: the North, the North-West, the Central, the Volga-Vyatka, the Middle-Volga, the Central Chernozem, the Ural, the West Siberia and the East Siberia. The tests were carried out in 2017-2020 in the All-Russian Lupin Scientific Research Institute which is located in the South-West of the Central region. Ten varieties and breeding lines bred in the Institute are tested. The samples differ by early ripeness and anthracnose tolerance. The average experimental variety grain yield was 2.38 t/ha. The vars. Uzkolistny 53-02, USN 53-236, Bryanskiy kormovoy and SBS 56-15 have the highest yield and adaptivity (103-113 %). The index of year conditions was revealed; 2017 with the index 0.56 was the most favorable for implementation of grain productivity of the tested narrow-leafed lupin varieties. In the ecological varieties testing the soil-and-climatic conditions of Shatilovskaya experimental station (Orel region) were the most favorable for implementation of variety grain productivity (4.0-4.5 t/ha). Grain yield was 3.0-4.0 t/ha in ecological locations which differ in soil-and-climatic conditions: there are Kaliningrad region, Mordovia Republic, Krasnoyarsk region etc.

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