Ground-ice stable isotopes and cryostratigraphy reflect late Quaternary palaeoclimate in the Northeast Siberian Arctic (Oyogos Yar coast, Dmitry Laptev Strait)

To reconstruct palaeoclimate and palaeoenvironmental conditions in the northeast Siberian Arctic, we studied late Quaternary permafrost at the Oyogos Yar coast (Dmitry Laptev Strait). New infrared-stimulated luminescence ages for distinctive floodplain deposits of the Kuchchugui Suite (112.5 ± 9.6 k...

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Published in:Climate of the Past
Main Authors: T. Opel, S. Wetterich, H. Meyer, A. Y. Dereviagin, M. C. Fuchs, L. Schirrmeister
Format: Article in Journal/Newspaper
Language:English
Published: Copernicus Publications 2017
Subjects:
Yar
Ice
Online Access:https://doi.org/10.5194/cp-13-587-2017
https://doaj.org/article/c513194e31284d7ab9bebef9473a1d6f
id ftdoajarticles:oai:doaj.org/article:c513194e31284d7ab9bebef9473a1d6f
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spelling ftdoajarticles:oai:doaj.org/article:c513194e31284d7ab9bebef9473a1d6f 2023-05-15T14:53:07+02:00 Ground-ice stable isotopes and cryostratigraphy reflect late Quaternary palaeoclimate in the Northeast Siberian Arctic (Oyogos Yar coast, Dmitry Laptev Strait) T. Opel S. Wetterich H. Meyer A. Y. Dereviagin M. C. Fuchs L. Schirrmeister 2017-06-01T00:00:00Z https://doi.org/10.5194/cp-13-587-2017 https://doaj.org/article/c513194e31284d7ab9bebef9473a1d6f EN eng Copernicus Publications http://www.clim-past.net/13/587/2017/cp-13-587-2017.pdf https://doaj.org/toc/1814-9324 https://doaj.org/toc/1814-9332 doi:10.5194/cp-13-587-2017 1814-9324 1814-9332 https://doaj.org/article/c513194e31284d7ab9bebef9473a1d6f Climate of the Past, Vol 13, Pp 587-611 (2017) Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 article 2017 ftdoajarticles https://doi.org/10.5194/cp-13-587-2017 2022-12-31T15:41:47Z To reconstruct palaeoclimate and palaeoenvironmental conditions in the northeast Siberian Arctic, we studied late Quaternary permafrost at the Oyogos Yar coast (Dmitry Laptev Strait). New infrared-stimulated luminescence ages for distinctive floodplain deposits of the Kuchchugui Suite (112.5 ± 9.6 kyr) and thermokarst-lake deposits of the Krest Yuryakh Suite (102.4 ± 9.7 kyr), respectively, provide new substantial geochronological data and shed light on the landscape history of the Dmitry Laptev Strait region during Marine Isotope Stage (MIS) 5. Ground-ice stable-isotope data are presented together with cryolithological information for eight cryostratigraphic units and are complemented by data from nearby Bol'shoy Lyakhovsky Island. Our combined record of ice-wedge stable isotopes as a proxy for past winter climate conditions covers about 200 000 years and is supplemented by stable isotopes of pore and segregated ice which reflect annual climate conditions overprinted by freezing processes. Our ice-wedge stable-isotope data indicate substantial variations in northeast Siberian Arctic winter climate conditions during the late Quaternary, in particular between glacial and interglacial times but also over the last millennia to centuries. Stable isotope values of ice complex ice wedges indicate cold to very cold winter temperatures about 200 kyr ago (MIS7), very cold winter conditions about 100 kyr ago (MIS5), very cold to moderate winter conditions between about 60 and 30 kyr ago, and extremely cold winter temperatures during the Last Glacial Maximum (MIS2). Much warmer winter conditions are reflected by extensive thermokarst development during MIS5c and by Holocene ice-wedge stable isotopes. Modern ice-wedge stable isotopes are most enriched and testify to the recent winter warming in the Arctic. Hence, ice-wedge-based reconstructions of changes in winter climate conditions add substantial information to those derived from paleoecological proxies stored in permafrost and allow a distinction between seasonal trends ... Article in Journal/Newspaper Arctic Ice laptev permafrost Thermokarst wedge* Directory of Open Access Journals: DOAJ Articles Arctic Yar ENVELOPE(151.300,151.300,70.917,70.917) Krest ENVELOPE(162.010,162.010,58.451,58.451) Yuryakh ENVELOPE(145.658,145.658,59.865,59.865) Climate of the Past 13 6 587 611
institution Open Polar
collection Directory of Open Access Journals: DOAJ Articles
op_collection_id ftdoajarticles
language English
topic Environmental pollution
TD172-193.5
Environmental protection
TD169-171.8
Environmental sciences
GE1-350
spellingShingle Environmental pollution
TD172-193.5
Environmental protection
TD169-171.8
Environmental sciences
GE1-350
T. Opel
S. Wetterich
H. Meyer
A. Y. Dereviagin
M. C. Fuchs
L. Schirrmeister
Ground-ice stable isotopes and cryostratigraphy reflect late Quaternary palaeoclimate in the Northeast Siberian Arctic (Oyogos Yar coast, Dmitry Laptev Strait)
topic_facet Environmental pollution
TD172-193.5
Environmental protection
TD169-171.8
Environmental sciences
GE1-350
description To reconstruct palaeoclimate and palaeoenvironmental conditions in the northeast Siberian Arctic, we studied late Quaternary permafrost at the Oyogos Yar coast (Dmitry Laptev Strait). New infrared-stimulated luminescence ages for distinctive floodplain deposits of the Kuchchugui Suite (112.5 ± 9.6 kyr) and thermokarst-lake deposits of the Krest Yuryakh Suite (102.4 ± 9.7 kyr), respectively, provide new substantial geochronological data and shed light on the landscape history of the Dmitry Laptev Strait region during Marine Isotope Stage (MIS) 5. Ground-ice stable-isotope data are presented together with cryolithological information for eight cryostratigraphic units and are complemented by data from nearby Bol'shoy Lyakhovsky Island. Our combined record of ice-wedge stable isotopes as a proxy for past winter climate conditions covers about 200 000 years and is supplemented by stable isotopes of pore and segregated ice which reflect annual climate conditions overprinted by freezing processes. Our ice-wedge stable-isotope data indicate substantial variations in northeast Siberian Arctic winter climate conditions during the late Quaternary, in particular between glacial and interglacial times but also over the last millennia to centuries. Stable isotope values of ice complex ice wedges indicate cold to very cold winter temperatures about 200 kyr ago (MIS7), very cold winter conditions about 100 kyr ago (MIS5), very cold to moderate winter conditions between about 60 and 30 kyr ago, and extremely cold winter temperatures during the Last Glacial Maximum (MIS2). Much warmer winter conditions are reflected by extensive thermokarst development during MIS5c and by Holocene ice-wedge stable isotopes. Modern ice-wedge stable isotopes are most enriched and testify to the recent winter warming in the Arctic. Hence, ice-wedge-based reconstructions of changes in winter climate conditions add substantial information to those derived from paleoecological proxies stored in permafrost and allow a distinction between seasonal trends ...
format Article in Journal/Newspaper
author T. Opel
S. Wetterich
H. Meyer
A. Y. Dereviagin
M. C. Fuchs
L. Schirrmeister
author_facet T. Opel
S. Wetterich
H. Meyer
A. Y. Dereviagin
M. C. Fuchs
L. Schirrmeister
author_sort T. Opel
title Ground-ice stable isotopes and cryostratigraphy reflect late Quaternary palaeoclimate in the Northeast Siberian Arctic (Oyogos Yar coast, Dmitry Laptev Strait)
title_short Ground-ice stable isotopes and cryostratigraphy reflect late Quaternary palaeoclimate in the Northeast Siberian Arctic (Oyogos Yar coast, Dmitry Laptev Strait)
title_full Ground-ice stable isotopes and cryostratigraphy reflect late Quaternary palaeoclimate in the Northeast Siberian Arctic (Oyogos Yar coast, Dmitry Laptev Strait)
title_fullStr Ground-ice stable isotopes and cryostratigraphy reflect late Quaternary palaeoclimate in the Northeast Siberian Arctic (Oyogos Yar coast, Dmitry Laptev Strait)
title_full_unstemmed Ground-ice stable isotopes and cryostratigraphy reflect late Quaternary palaeoclimate in the Northeast Siberian Arctic (Oyogos Yar coast, Dmitry Laptev Strait)
title_sort ground-ice stable isotopes and cryostratigraphy reflect late quaternary palaeoclimate in the northeast siberian arctic (oyogos yar coast, dmitry laptev strait)
publisher Copernicus Publications
publishDate 2017
url https://doi.org/10.5194/cp-13-587-2017
https://doaj.org/article/c513194e31284d7ab9bebef9473a1d6f
long_lat ENVELOPE(151.300,151.300,70.917,70.917)
ENVELOPE(162.010,162.010,58.451,58.451)
ENVELOPE(145.658,145.658,59.865,59.865)
geographic Arctic
Yar
Krest
Yuryakh
geographic_facet Arctic
Yar
Krest
Yuryakh
genre Arctic
Ice
laptev
permafrost
Thermokarst
wedge*
genre_facet Arctic
Ice
laptev
permafrost
Thermokarst
wedge*
op_source Climate of the Past, Vol 13, Pp 587-611 (2017)
op_relation http://www.clim-past.net/13/587/2017/cp-13-587-2017.pdf
https://doaj.org/toc/1814-9324
https://doaj.org/toc/1814-9332
doi:10.5194/cp-13-587-2017
1814-9324
1814-9332
https://doaj.org/article/c513194e31284d7ab9bebef9473a1d6f
op_doi https://doi.org/10.5194/cp-13-587-2017
container_title Climate of the Past
container_volume 13
container_issue 6
container_start_page 587
op_container_end_page 611
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