Ice Complex formation on Bol'shoy Lyakhovsky Island (New Siberian Archipelago, East Siberian Arctic) since about 200 ka

Sebastian Wetterich , Natalia Rudaya, Владислав Юрьевич Кузнецов, Федор Евгеньевич Максимов, Thomas Opel, Hanno Meyer , Frank Günther, Anatoly Bobrov , Elena Raschke , Heike H. Zimmermann, Jens Strauss, Анна Александровна Старикова, Margret Fuchs, Lutz Schirrmeister

Research output

1 Citation (Scopus)

Abstract

Late Quaternary landscapes of unglaciated Beringia were largely shaped by ice-wedge polygon tundra. Ice Complex (IC) strata preserve such ancient polygon formations. Here we report on the Yukagir IC from Bol'shoy Lyakhovsky Island in northeastern Siberia and suggest that new radioisotope disequilibria (230Th/U) dates of the Yukagir IC peat confirm its formation during the Marine Oxygen Isotope Stage (MIS) 7a–c interglacial period. The preservation of the ice-rich Yukagir IC proves its resilience to last interglacial and late glacial–Holocene warming. This study compares the Yukagir IC to IC strata of MIS 5, MIS 3, and MIS 2 ages exposed on Bol'shoy Lyakhovsky Island. Besides high intrasedimental ice content and syngenetic ice wedges intersecting silts, sandy silts, the Yukagir IC is characterized by high organic matter (OM) accumulation and low OM decomposition of a distinctive Drepanocladus moss-peat. The Yukagir IC pollen data reveal grass-shrub-moss tundra indicating rather wet summer conditions similar to modern ones. The stable isotope composition of Yukagir IC wedge ice is similar to those of the MIS 5 and MIS 3 ICs pointing to similar atmospheric moisture generation and transport patterns in winter. IC data from glacial and interglacial periods provide insights into permafrost and climate dynamics since about 200 ka.
Original languageEnglish
Pages (from-to)530-548
Number of pages19
JournalQuaternary Research
Volume92
Issue number2
DOIs
Publication statusPublished - 1 Sep 2019

Fingerprint

archipelago
ice
oxygen isotope
complex formation
Oxygen Isotopes
Arctic
polygon
tundra
interglacial
moss
peat
Beringia
organic matter
atmospheric moisture
Last Interglacial
disequilibrium
permafrost
radionuclide
stable isotope
shrub

Scopus subject areas

  • Environmental Science(all)

Cite this

Wetterich , Sebastian ; Rudaya, Natalia ; Кузнецов, Владислав Юрьевич ; Максимов, Федор Евгеньевич ; Opel, Thomas ; Meyer , Hanno ; Günther, Frank ; Bobrov , Anatoly ; Raschke , Elena ; Zimmermann, Heike H. ; Strauss, Jens ; Старикова, Анна Александровна ; Fuchs, Margret ; Schirrmeister , Lutz . / Ice Complex formation on Bol'shoy Lyakhovsky Island (New Siberian Archipelago, East Siberian Arctic) since about 200 ka. In: Quaternary Research. 2019 ; Vol. 92, No. 2. pp. 530-548.
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title = "Ice Complex formation on Bol'shoy Lyakhovsky Island (New Siberian Archipelago, East Siberian Arctic) since about 200 ka",
abstract = "Late Quaternary landscapes of unglaciated Beringia were largely shaped by ice-wedge polygon tundra. Ice Complex (IC) strata preserve such ancient polygon formations. Here we report on the Yukagir IC from Bol'shoy Lyakhovsky Island in northeastern Siberia and suggest that new radioisotope disequilibria (230Th/U) dates of the Yukagir IC peat confirm its formation during the Marine Oxygen Isotope Stage (MIS) 7a–c interglacial period. The preservation of the ice-rich Yukagir IC proves its resilience to last interglacial and late glacial–Holocene warming. This study compares the Yukagir IC to IC strata of MIS 5, MIS 3, and MIS 2 ages exposed on Bol'shoy Lyakhovsky Island. Besides high intrasedimental ice content and syngenetic ice wedges intersecting silts, sandy silts, the Yukagir IC is characterized by high organic matter (OM) accumulation and low OM decomposition of a distinctive Drepanocladus moss-peat. The Yukagir IC pollen data reveal grass-shrub-moss tundra indicating rather wet summer conditions similar to modern ones. The stable isotope composition of Yukagir IC wedge ice is similar to those of the MIS 5 and MIS 3 ICs pointing to similar atmospheric moisture generation and transport patterns in winter. IC data from glacial and interglacial periods provide insights into permafrost and climate dynamics since about 200 ka.",
keywords = "Ice Complex, Bol'shoy Lyakhovsky Island, radioisotope disequilibria dates, marine isotope stages",
author = "Sebastian Wetterich and Natalia Rudaya and Кузнецов, {Владислав Юрьевич} and Максимов, {Федор Евгеньевич} and Thomas Opel and Hanno Meyer and Frank G{\"u}nther and Anatoly Bobrov and Elena Raschke and Zimmermann, {Heike H.} and Jens Strauss and Старикова, {Анна Александровна} and Margret Fuchs and Lutz Schirrmeister",
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Wetterich , S, Rudaya, N, Кузнецов, ВЮ, Максимов, ФЕ, Opel, T, Meyer , H, Günther, F, Bobrov , A, Raschke , E, Zimmermann, HH, Strauss, J, Старикова, АА, Fuchs, M & Schirrmeister , L 2019, 'Ice Complex formation on Bol'shoy Lyakhovsky Island (New Siberian Archipelago, East Siberian Arctic) since about 200 ka', Quaternary Research, vol. 92, no. 2, pp. 530-548. https://doi.org/10.1017/qua.2019.6

Ice Complex formation on Bol'shoy Lyakhovsky Island (New Siberian Archipelago, East Siberian Arctic) since about 200 ka. / Wetterich , Sebastian ; Rudaya, Natalia ; Кузнецов, Владислав Юрьевич; Максимов, Федор Евгеньевич; Opel, Thomas; Meyer , Hanno ; Günther, Frank ; Bobrov , Anatoly ; Raschke , Elena ; Zimmermann, Heike H. ; Strauss, Jens; Старикова, Анна Александровна; Fuchs, Margret ; Schirrmeister , Lutz .

In: Quaternary Research, Vol. 92, No. 2, 01.09.2019, p. 530-548.

Research output

TY - JOUR

T1 - Ice Complex formation on Bol'shoy Lyakhovsky Island (New Siberian Archipelago, East Siberian Arctic) since about 200 ka

AU - Wetterich , Sebastian

AU - Rudaya, Natalia

AU - Кузнецов, Владислав Юрьевич

AU - Максимов, Федор Евгеньевич

AU - Opel, Thomas

AU - Meyer , Hanno

AU - Günther, Frank

AU - Bobrov , Anatoly

AU - Raschke , Elena

AU - Zimmermann, Heike H.

AU - Strauss, Jens

AU - Старикова, Анна Александровна

AU - Fuchs, Margret

AU - Schirrmeister , Lutz

PY - 2019/9/1

Y1 - 2019/9/1

N2 - Late Quaternary landscapes of unglaciated Beringia were largely shaped by ice-wedge polygon tundra. Ice Complex (IC) strata preserve such ancient polygon formations. Here we report on the Yukagir IC from Bol'shoy Lyakhovsky Island in northeastern Siberia and suggest that new radioisotope disequilibria (230Th/U) dates of the Yukagir IC peat confirm its formation during the Marine Oxygen Isotope Stage (MIS) 7a–c interglacial period. The preservation of the ice-rich Yukagir IC proves its resilience to last interglacial and late glacial–Holocene warming. This study compares the Yukagir IC to IC strata of MIS 5, MIS 3, and MIS 2 ages exposed on Bol'shoy Lyakhovsky Island. Besides high intrasedimental ice content and syngenetic ice wedges intersecting silts, sandy silts, the Yukagir IC is characterized by high organic matter (OM) accumulation and low OM decomposition of a distinctive Drepanocladus moss-peat. The Yukagir IC pollen data reveal grass-shrub-moss tundra indicating rather wet summer conditions similar to modern ones. The stable isotope composition of Yukagir IC wedge ice is similar to those of the MIS 5 and MIS 3 ICs pointing to similar atmospheric moisture generation and transport patterns in winter. IC data from glacial and interglacial periods provide insights into permafrost and climate dynamics since about 200 ka.

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KW - Ice Complex, Bol'shoy Lyakhovsky Island, radioisotope disequilibria dates, marine isotope stages

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DO - 10.1017/qua.2019.6

M3 - Article

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JO - Quaternary Research

JF - Quaternary Research

SN - 0033-5894

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ER -