Glaciation of Siberia and north-east USSR

Arkhipov, S.A.; Isayeva, L. L.; Bespaly, V.G.; Glushkova, O. Yu.

doi:10.1016/0277-3791(86)90212-x

Cited by 49 publications

(31 citation statements)

References 1 publication

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“…However, some supposedly Kazantzevo-aged marine strata also contain shells extinct species as Cyrtodaria augusta (Kind and Leonov, 1982), indicating that these sediments belong to an earlier interglacial, possibly the Tobol interglacial (Astakhov 2004a;Svendsen et al, 2004), and thus reducing the usefulness of marine strata with boreal-arctic faunas as a stratigraphic key horizon. The till lying immediately below the Kazantzevo deposits on southern Taymyr belongs to the Murukta glaciation (Kind and Leonov, 1982), which is correlated to the Taz glaciation of western Siberia (Arkhipov et al, 1986;Arkhipov, 1989) and regarded as Late Saalian in age (MIS 6). The largest ice sheet expansion is tied to the Middle Pleistocene Samarovo glaciation (MIS 8), forming the maximum glacial drift boundary in western Siberia (Fig.…”

Section: Regional Correlationsmentioning

confidence: 99%

Severnaya Zemlya, Arctic Russia: a nucleation area for Kara Sea ice sheets during the Middle to Late Quaternary

Möller

Lubinski

Inǵólfsson

et al. 2006

Quaternary Science Reviews

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Quaternary glacial stratigraphy and relative sea-level changes reveal at least four expansions of the Kara Sea ice sheet over the Severnaya Zemlya Archipelago at 791N in the Russian Arctic, as indicated from tills interbedded with marine sediments, exposed in stratigraphic superposition, and from raised-beach sequences that occur at altitudes up to 140 m a.s.l. Chronologic control is provided by AMS 14 C, electron-spin resonance, green-stimulated luminescence, and aspartic-acid geochronology. Major glaciations followed by deglaciation and marine inundation occurred during MIS 10-9, MIS 8-7, MIS 6-5e and MIS 5d-3. The MIS 6-5e event, associated with the high marine limit, implies ice-sheet thickness of 42000 m only 200 km from the deep Arctic Ocean, consistent with published evidence of ice grounding at $1000 m water depth in the central Arctic Ocean. Till fabrics and glacial tectonics record repeated expansions of local ice caps exclusively, suggesting wet-based ice cap advance followed by cold-based regional ice-sheet expansion. Local ice caps over highland sites along the perimeter of the shallow Kara Sea, including the Byrranga Mountains, appear to have repeatedly fostered initiation of a large Kara Sea ice sheet, with exception of the Last Glacial Maximum (MIS 2), when Kara Sea ice did not impact Severnaya Zemlya and barely graced northernmost Taymyr Peninsula. r

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Section: Regional Correlationsmentioning

confidence: 99%

Severnaya Zemlya, Arctic Russia: a nucleation area for Kara Sea ice sheets during the Middle to Late Quaternary

Möller

Lubinski

Inǵólfsson

et al. 2006

Quaternary Science Reviews

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“…We assume that the landscape dynamics of the Lena catchment probably exerted a very large influence on changes in the hydrological regime in our study region. The late Pleistocene glaciation of the Verkhoyansky Mountains was expressed by several strong mountain glacier advances during the early Weichselian (MIS 4) period, and minor advances during the Middle and Late Weichselian (Arkhipov et al, 1986;Kind, 1975;Kolpakov, 1979;Popp et al, 2006;Stauch and Gualtieri, 2008;Stauch and Lehmkuhl, 2010;Stauch et al, 2007). These glacier dynamics, as well as paleoprecipitation patterns in the large Lena catchment, likely also controlled the dynamics of the Lena River in its lower reaches.…”

Section: Discussion and Interpretationmentioning

confidence: 99%

Late Quaternary paleoenvironmental records from the western Lena Delta, Arctic Siberia

Schirrmeister

Grosse

Schnelle

et al. 2011

Palaeogeography, Palaeoclimatology, Palaeoecology

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The three main Lena Delta terraces were formed during different stages of the late Quaternary. While only the first floodplain terrace is connected with active deltaic processes, the second and third terraces, which dominate the western part of the delta, are erosional remnants of arctic paleolandscapes affected by periglacial processes. The landscape dynamics of the second and the third terraces, and their relationship to each other, are of particular importance in any effort to elucidate the late Quaternary paleoenvironment of western Beringia. Multidisciplinary studies of permafrost deposits on the second terrace were carried out at several sites of the Arga Complex, named after the largest delta island, Arga-Muora-Sise. The frozen sediments predominantly consist of fluvial sands several tens of meters thick, radiocarbon-dated from N 52 to 16 kyr BP. These sands were deposited under changing fluvial conditions in a dynamic system of shifting river channels, and have been additionally modified by synsedimentary and postsedimentary cryogenesis. Later thermokarst processes affected this late Pleistocene fluvial landscape during the Lateglacial and the Holocene. In addition, eolian activity reworked the fluvial sands on exposed surfaces at least since the Lateglacial, resulting in dune formation in some areas. Contrary to the Arga Complex, the third terrace is mainly composed of polygenetic alluvial and proluvial ice-rich permafrost sequences (Ice Complex deposits) radiocarbon-dated from 50 to 17 kyr BP which cover older fluvial sand units luminescence-dated to about 100-50 kyr BP. Paleoecological records reflect tundra-steppe conditions that varied locally, depending on landscape dynamics, during the Marine Isotope Stage (MIS) 4 and 3 periods, and a persistent change to shrub and arctic tundra during Lateglacial and Holocene periods. The study results indicate a continuous fluvial sedimentation environment for the Laptev Sea shelf in the region of the second Lena Delta terrace during the late Pleistocene, and confirm the presence of a dynamic channel system of the paleo-Lena River that flowed at the same time as the nearby subaerial Ice Complex deposits were being formed.

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“…However, this hypothesis was challenged by many studies in which Pleistocene moraines in NE Russia were dated using luminescence, cosmogenic and radiocarbon techniques. These studies provided evidence that Beringia remained largely icefree during the gLGM, and that glaciers were restricted to mountain ranges (Velichko et al, 1984;Arkhipov et al, 1986;Glushkova, 2001;Gualtieri et al, 2000;Gualtieri et al, 2003;Brigham-Grette et al, 2003; Zamoruyev, 2004; Stauch and Gualtieri, 2008; Barr and Clark, 2012). For example, evidence was found to suggest that glaciers along the Pacific coast (e.g., in the Koryak Range and Kamchatka, Fig.…”

mentioning

confidence: 99%

Linking glacier extent and summer temperature in NE Russia - Implications for precipitation during the global Last Glacial Maximum

Meyer

Barr

2017

Palaeogeography, Palaeoclimatology, Palaeoecology

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General rights Copyright for the publications made accessible via the Queen's University Belfast Research Portal is retained by the author(s) and / or other copyright owners and it is a condition of accessing these publications that users recognise and abide by the legal requirements associated with these rights.Take down policy The Research Portal is Queen's institutional repository that provides access to Queen's research output. Every effort has been made to ensure that content in the Research Portal does not infringe any person's rights, or applicable UK laws. If you discover content in the Research Portal that you believe breaches copyright or violates any law, please contact openaccess@qub.ac.uk. This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. A C C E P T E D M A N U S C R I P T AbstractIt is generally assumed that during the global Last Glacial Maximum (gLGM, i.e. 18-24 ka BP) dry climatic conditions in NE Russia inhibited the growth of large ice caps and restricted glaciers to mountain ranges. However, recent evidence has been found to suggest that glacial summers in NE Russia were as warm as at present while glaciers were more extensive than today. As a result, we hypothesize that precipitation must have been relatively high in order to compensate for the high summer temperatures and the resulting glacial ablation. We estimate precipitation abundance by mass balance calculations for the paleo-glaciers on Kamchatka and in the Kankaren Range using a degree-day-modelling (DDM) approach, and find that precipitation during the gLGM was likely comparable to, or even exceeded, the modern average. We suggest that stronger than present southerly winds over the Northwest Pacific may have accounted for the abundant precipitation. The DDM-results imply that summer temperature, rather than aridity, limited glacier extent in the southern Pacific Sector of NE Russia during the gLGM.Keywords: Siberia, Last Glacial Maximum, glaciation, precipitation, summer temperature ACCEPTED MANUSCRIPTA C C E P T E D M A N U S C R I P T 2 1) IntroductionAn understanding of the extent of glaciers in East Asia during the global Last Glacial Maximum (gLGM, i.e. 18-24 ka BP, Mix et al. (2001)), and an appreciation of the underlying controlling mechanisms are important for the paleoclimate modelling community, as the presence of large ice-caps during this period would strongly impact climatic conditions in the North Pacific (N Pacific) region (Felzer et al., 2001, Bigg et al., 2008. Glacier extent in Northeast Russia (NE Russia) during the gLGM has been controversially discussed in the literature. For a long time the idea that a...

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Glaciation of Siberia and north-east USSR

Cited by 49 publications

References 1 publication

Severnaya Zemlya, Arctic Russia: a nucleation area for Kara Sea ice sheets during the Middle to Late Quaternary

Severnaya Zemlya, Arctic Russia: a nucleation area for Kara Sea ice sheets during the Middle to Late Quaternary

Late Quaternary paleoenvironmental records from the western Lena Delta, Arctic Siberia

Linking glacier extent and summer temperature in NE Russia - Implications for precipitation during the global Last Glacial Maximum

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