The extent of the Barents–Kara ice sheet during the Last Glacial Maximum

Mangerud, J.; Astakhov, Valery; Svendsen, John‐Inge

doi:10.1016/s0277-3791(01)00088-9

Cited by 112 publications

(92 citation statements)

References 18 publications

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“…present-day surface elevation of the Earth's surface). The basal shear stress for the parabolic profile reconstruction is chosen so that the difference in ice volume between LGM and present day corresponds to 86 m of Mayewski et al (1981) 18 (north) 21-7 (interior) Iceland Andersen (1981) 20-present day Eurasian Andersen (1981) 20-present day Landvik et al (1998) 15-12 (Barents Sea) Mangerud et al (2002) 18 (southern Barents and Kara seas) Svendsen et al (1999) 18 European Alps Zweck and Huybrechts (2003) eustatic sea-level change. With isostasy accounted for, a similar elevation would result in an additional contribution of 24 m to a total equivalent eustatic sea-level change of 110 m (cf.…”

Section: A2 Ice Sheet Elevations During Termination Imentioning

confidence: 99%

Impact of ice sheet meltwater fluxes on the climate evolution at the onset of the Last Interglacial

et al. 2016

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Abstract. Large climate perturbations occurred during the transition between the penultimate glacial period and the Last Interglacial (Termination II), when the ice sheets retreated from their glacial configuration. Here we investigate the impact of ice sheet changes and associated freshwater fluxes on the climate evolution at the onset of the Last Interglacial. The period from 135 to 120 kyr BP is simulated with the Earth system model of intermediate complexity LOVECLIM v

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Section: A2 Ice Sheet Elevations During Termination Imentioning

confidence: 99%

Impact of ice sheet meltwater fluxes on the climate evolution at the onset of the Last Interglacial

et al. 2016

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“…Detailed studies of terrestrial sections recovered in the areas west of the Ural Mountains showed that maximum ice-sheet extension occurred during the Early and Middle Weichselian and that the region was ice-free during the Late Weichselian (e.g., Mangerud et al, 2001). The most recent studies suggest a continental shelf position of the ice-sheet margin during the Last Glacial Maximum (LGM) and, consequently, an ice-free northern mainland including the NW rim of the Polar Urals (e.g., Mangerud et al, 2002;Hubberten et al, 2004 and references therein).…”

Section: Introductionmentioning

confidence: 99%

Holocene environmental history recorded in Lake Lyadhej-To sediments, Polar Urals, Russia

Andreev

Tarasov

Ilyashuk

et al. 2005

Palaeogeography, Palaeoclimatology, Palaeoecology

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An 1180-cm long core recovered from Lake Lyadhej-To (68815V N, 65845V E, 150 m a.s.l.) at the NW rim of the Polar Urals Mountains reflects the Holocene environmental history from ca. 11,000 cal. yr BP. Pollen assemblages from the diamicton (ca. 11,000-10,700 cal. yr BP) are dominated by Pre-Quaternary spores and redeposited Pinaceae pollen, pointing to a high terrestrial input. Turbid and nutrient-poor conditions existed in the lake ca. 10,700-10,550 cal. yr BP. The chironomid-inferred reconstructions suggest that mean July temperature increased rapidly from 10.0 to 11.8 8C during this period. Sparse, treeless vegetation dominated on the disturbed and denuded soils in the catchment area. A distinct dominance of planktonic diatoms ca. 10,500-8800 cal. yr BP points to the lowest lake-ice coverage, the longest growing season and the highest bioproductivity during the lake history. Birch forest with some shrub alder grew around the lake reflecting the warmest climate conditions during the Holocene. Mean July temperature was likely 11-13 8C and annual precipitation-400-500 mm. The period ca. 8800-5500 cal. yr BP is characterized by a gradual deterioration of environmental conditions in the lake and lake catchment. The pollen-and chironomid-inferred temperatures reflect a warm period (ca. 6500-6000 cal. BP) with a mean July temperature at least 1-2 8C higher than today. Birch forests disappeared from the lake vicinity after 6000 cal. yr BP. The vegetation in the Lyadhej-To region became similar to the modern one. Shrub (Betula nana, Salix) and herb tundra have dominated the lake catchment since ca. 5500 cal. yr BP. All proxies suggest rather harsh environmental conditions. Diatom assemblages reflect relatively short growing seasons and a longer persistence of lake-ice ca. 5500-2500 cal. yr BP. Pollen-based climate reconstructions suggest significant cooling between ca. 5500 and 3500 cal. yr BP with a mean July temperature 8-10 8C and annual precipitation-300-400 mm. The bioproductivity in the lake remained low after 2500 cal. yr BP, but biogeochemical proxies reflect a higher terrestrial influx. Changes in the diatom content may indicate warmer water temperatures and a reduced ice cover on the lake. However, chironomid-based reconstructions reflect a period with minimal temperatures during the lake history. D

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“…The limits of the Eurasian Ice sheet in the European and West Siberian Russian Arctic during the Weichselian was studied within the framework of the QUEEN project (Quaternary Environment of the Eurasian North) using terrestrial and marine records (Mangerud et al, , 2002Svendsen et al, 1999). Polyak analyzed numerous marine boreholes to study the lateand postglacial marine environment in these regions (Polyak and Solheim, 1994;Polyak and Mikhailov, 1996;Polyak et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

Late Quaternary History of the Accumulation Plain North of the Chekanovsky Ridge (Lena Delta, Russia): A Multidisciplinary Approach

Schirrmeister¹,

Grosse²,

Schwamborn³

et al. 2003

Polar Geography

105

102

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Permafrost deposits were studied along the Olenyeksky and the Arinsky distributaries in the western Lena delta using a multidisciplinary approach that included sedimentological, mineralogical, stable-isotope, and paleoecological analyses in order to reconstruct the Late Quaternary landscape and environmental history of this Northeast 1 The paper is based on activities, expeditions, and analyses financed by the German Ministries for Science and Technology (BMBF), the Russian Ministry of Science, and the Russian Foundation for Basic under the auspices of the German-Russian cooperative project "System Laptev Sea 2000." The authors thank L. D. Sulerzhitsky for the 14 C dating of bones, and Leibniz-Labor for Age Determination and Isotope Studies (Christian Albrecht University, Kiel) for AMS and conventional 14 C dating. These results would not have been obtained without the help of Russian colleagues from the Lena Delta Reserve, as well as the Tiksi Hydrobase during field work. We also thank the laboratory team from the Alfred Wegener Institute in Potsdam for sample preparation and a great number of chemical analyses. We also thank Helga Henschel and Paul Jasinski for a critical reading and help with improving the English.

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The extent of the Barents–Kara ice sheet during the Last Glacial Maximum

Cited by 112 publications

References 18 publications

Impact of ice sheet meltwater fluxes on the climate evolution at the onset of the Last Interglacial

Impact of ice sheet meltwater fluxes on the climate evolution at the onset of the Last Interglacial

Holocene environmental history recorded in Lake Lyadhej-To sediments, Polar Urals, Russia

Late Quaternary History of the Accumulation Plain North of the Chekanovsky Ridge (Lena Delta, Russia): A Multidisciplinary Approach

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