Palaeoclimate reconstruction on Big Lyakhovsky Island, north Siberia—hydrogen and oxygen isotopes in ice wedges
Late Quaternary permafrost deposits on Big Lyakhovsky Island (New Siberian Islands, Russian Arctic) were studied with the aim of reconstructing the palaeoclimatic and palaeoenvironmental conditions of northern Siberia. Hydrogen and oxygen stable isotope analyses are presented for six different gener...
Published in: | Permafrost and Periglacial Processes |
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Online Access: | https://epic.awi.de/id/eprint/57873/ https://epic.awi.de/id/eprint/57873/1/Meyer_2002_PPP.pdf https://hdl.handle.net/10013/epic.8866d8d2-57eb-4cfb-9229-50cc724bd96b |
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ftawi:oai:epic.awi.de:57873 2024-09-15T18:11:31+00:00 Palaeoclimate reconstruction on Big Lyakhovsky Island, north Siberia—hydrogen and oxygen isotopes in ice wedges Meyer, Hanno Dereviagin, Alexander Siegert, Christine Schirrmeister, Lutz Hubberten, Hans‐W 2002-04-01 application/pdf https://epic.awi.de/id/eprint/57873/ https://epic.awi.de/id/eprint/57873/1/Meyer_2002_PPP.pdf https://hdl.handle.net/10013/epic.8866d8d2-57eb-4cfb-9229-50cc724bd96b unknown Wiley https://epic.awi.de/id/eprint/57873/1/Meyer_2002_PPP.pdf Meyer, H. orcid:0000-0003-4129-4706 , Dereviagin, A. , Siegert, C. , Schirrmeister, L. orcid:0000-0001-9455-0596 and Hubberten, H. (2002) Palaeoclimate reconstruction on Big Lyakhovsky Island, north Siberia—hydrogen and oxygen isotopes in ice wedges , Permafrost and Periglacial Processes, 13 (2), pp. 91-105 . doi:10.1002/ppp.416 <https://doi.org/10.1002/ppp.416> , hdl:10013/epic.8866d8d2-57eb-4cfb-9229-50cc724bd96b EPIC3Permafrost and Periglacial Processes, Wiley, 13(2), pp. 91-105, ISSN: 1045-6740 Article isiRev 2002 ftawi https://doi.org/10.1002/ppp.416 2024-06-24T04:30:12Z Late Quaternary permafrost deposits on Big Lyakhovsky Island (New Siberian Islands, Russian Arctic) were studied with the aim of reconstructing the palaeoclimatic and palaeoenvironmental conditions of northern Siberia. Hydrogen and oxygen stable isotope analyses are presented for six different generations of ice wedges as well as for recent ice wedges and precipitation. An age of about 200 ka BP was determined for an autochtonous peat layer in ice-rich deposits by U/Th method, containing the oldest ice wedges ever analysed for hydrogen and oxygen isotopes. The palaeoclimatic reconstruction revealed a period of severe winter temperatures at that time. After a gap in the sedimentation history of several tens of thousands of years, ice-wedge growth was re-initiated around 50 ka BP by a short period of extremely cold winters and rapid sedimentation leading to ice-wedge burial and characteristic ice-soil wedges (‘polosatics’). This corresponds to the initial stage for the Late Weichselian Ice Complex, a peculiar cryolithogenic periglacial formation typical of the lowlands of northern Siberia. The Ice Complex ice wedges reflect cold winters and similar climatic conditions as around 200 ka BP. With a sharp rise in υ18O of 6‰ and υD of 40‰, the warming trend between Pleistocene and Holocene ice wedges is documented. Stable isotope data of recent ice wedges show that Big Lyakhovsky Island has never been as warm in winter as today. Article in Journal/Newspaper Ice New Siberian Islands permafrost Permafrost and Periglacial Processes wedge* Siberia Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Permafrost and Periglacial Processes 13 2 91 105 |
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Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Late Quaternary permafrost deposits on Big Lyakhovsky Island (New Siberian Islands, Russian Arctic) were studied with the aim of reconstructing the palaeoclimatic and palaeoenvironmental conditions of northern Siberia. Hydrogen and oxygen stable isotope analyses are presented for six different generations of ice wedges as well as for recent ice wedges and precipitation. An age of about 200 ka BP was determined for an autochtonous peat layer in ice-rich deposits by U/Th method, containing the oldest ice wedges ever analysed for hydrogen and oxygen isotopes. The palaeoclimatic reconstruction revealed a period of severe winter temperatures at that time. After a gap in the sedimentation history of several tens of thousands of years, ice-wedge growth was re-initiated around 50 ka BP by a short period of extremely cold winters and rapid sedimentation leading to ice-wedge burial and characteristic ice-soil wedges (‘polosatics’). This corresponds to the initial stage for the Late Weichselian Ice Complex, a peculiar cryolithogenic periglacial formation typical of the lowlands of northern Siberia. The Ice Complex ice wedges reflect cold winters and similar climatic conditions as around 200 ka BP. With a sharp rise in υ18O of 6‰ and υD of 40‰, the warming trend between Pleistocene and Holocene ice wedges is documented. Stable isotope data of recent ice wedges show that Big Lyakhovsky Island has never been as warm in winter as today. |
format |
Article in Journal/Newspaper |
author |
Meyer, Hanno Dereviagin, Alexander Siegert, Christine Schirrmeister, Lutz Hubberten, Hans‐W |
spellingShingle |
Meyer, Hanno Dereviagin, Alexander Siegert, Christine Schirrmeister, Lutz Hubberten, Hans‐W Palaeoclimate reconstruction on Big Lyakhovsky Island, north Siberia—hydrogen and oxygen isotopes in ice wedges |
author_facet |
Meyer, Hanno Dereviagin, Alexander Siegert, Christine Schirrmeister, Lutz Hubberten, Hans‐W |
author_sort |
Meyer, Hanno |
title |
Palaeoclimate reconstruction on Big Lyakhovsky Island, north Siberia—hydrogen and oxygen isotopes in ice wedges |
title_short |
Palaeoclimate reconstruction on Big Lyakhovsky Island, north Siberia—hydrogen and oxygen isotopes in ice wedges |
title_full |
Palaeoclimate reconstruction on Big Lyakhovsky Island, north Siberia—hydrogen and oxygen isotopes in ice wedges |
title_fullStr |
Palaeoclimate reconstruction on Big Lyakhovsky Island, north Siberia—hydrogen and oxygen isotopes in ice wedges |
title_full_unstemmed |
Palaeoclimate reconstruction on Big Lyakhovsky Island, north Siberia—hydrogen and oxygen isotopes in ice wedges |
title_sort |
palaeoclimate reconstruction on big lyakhovsky island, north siberia—hydrogen and oxygen isotopes in ice wedges |
publisher |
Wiley |
publishDate |
2002 |
url |
https://epic.awi.de/id/eprint/57873/ https://epic.awi.de/id/eprint/57873/1/Meyer_2002_PPP.pdf https://hdl.handle.net/10013/epic.8866d8d2-57eb-4cfb-9229-50cc724bd96b |
genre |
Ice New Siberian Islands permafrost Permafrost and Periglacial Processes wedge* Siberia |
genre_facet |
Ice New Siberian Islands permafrost Permafrost and Periglacial Processes wedge* Siberia |
op_source |
EPIC3Permafrost and Periglacial Processes, Wiley, 13(2), pp. 91-105, ISSN: 1045-6740 |
op_relation |
https://epic.awi.de/id/eprint/57873/1/Meyer_2002_PPP.pdf Meyer, H. orcid:0000-0003-4129-4706 , Dereviagin, A. , Siegert, C. , Schirrmeister, L. orcid:0000-0001-9455-0596 and Hubberten, H. (2002) Palaeoclimate reconstruction on Big Lyakhovsky Island, north Siberia—hydrogen and oxygen isotopes in ice wedges , Permafrost and Periglacial Processes, 13 (2), pp. 91-105 . doi:10.1002/ppp.416 <https://doi.org/10.1002/ppp.416> , hdl:10013/epic.8866d8d2-57eb-4cfb-9229-50cc724bd96b |
op_doi |
https://doi.org/10.1002/ppp.416 |
container_title |
Permafrost and Periglacial Processes |
container_volume |
13 |
container_issue |
2 |
container_start_page |
91 |
op_container_end_page |
105 |
_version_ |
1810449106948063232 |