A 250 ka oxygen isotope record from diatoms at Lake El'gygytgyn, far east Russian Arctic
In 2003 sediment core Lz1024 was drilled at Lake El'gygytgyn, far east Russian Arctic, in an area of the Northern Hemisphere which has not been glaciated for the last 3.6 Ma. Biogenic silica was used for analysing the oxygen isotope composition (δ18Odiatom) in the upper 13 m long section dating...
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Copernicus Publications
2012
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fttriple:oai:gotriple.eu:oai:doaj.org/article:eac77e2e98504bd68b049bf0b930f8d8 2023-05-15T14:49:22+02:00 A 250 ka oxygen isotope record from diatoms at Lake El'gygytgyn, far east Russian Arctic B. Chapligin H. Meyer G. E. A. Swann C. Meyer-Jacob H.-W. Hubberten 2012-10-01 https://doi.org/10.5194/cp-8-1621-2012 http://www.clim-past.net/8/1621/2012/cp-8-1621-2012.pdf https://doaj.org/article/eac77e2e98504bd68b049bf0b930f8d8 en eng Copernicus Publications doi:10.5194/cp-8-1621-2012 1814-9324 1814-9332 http://www.clim-past.net/8/1621/2012/cp-8-1621-2012.pdf https://doaj.org/article/eac77e2e98504bd68b049bf0b930f8d8 undefined Climate of the Past, Vol 8, Iss 5, Pp 1621-1636 (2012) anthro-bio geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2012 fttriple https://doi.org/10.5194/cp-8-1621-2012 2023-01-22T19:12:29Z In 2003 sediment core Lz1024 was drilled at Lake El'gygytgyn, far east Russian Arctic, in an area of the Northern Hemisphere which has not been glaciated for the last 3.6 Ma. Biogenic silica was used for analysing the oxygen isotope composition (δ18Odiatom) in the upper 13 m long section dating back about 250 ka with samples dominated by one taxa in the Cyclotella ocellata). Downcore variations in δ18O values show that glacial-interglacial cycles are present throughout the core and δ18Odiatom-values are mainly controlled by δ18Oprecipitation. Changes reflect the Holocene Thermal Maximum, the Last Glacial Maximum (LGM) and the interglacial periods corresponding to MIS 5.5 and MIS 7 with a peak-to-peak amplitude between LGM and MIS 5.5 of Δ18O = 5.3‰. This corresponds to a mean annual air temperature difference of about 9 °C. Our record is the first continuous δ18Odiatom record from an Arctic lake sediment core directly responding to precipitation and dating back more than 250 ka and correlates well with the stacked marine δ18O LR04 (r = 0.58) and δD EPICA Dome-C record (r = 0.69). With δ18O results indicating strong links to both marine and ice-core records, records from Lake El'gygytgyn can be used to further investigate the sensitivity of the Arctic climate to both past and future global climatic changes. Article in Journal/Newspaper Arctic EPICA ice core Unknown Arctic Arctic Lake ENVELOPE(-130.826,-130.826,57.231,57.231) Climate of the Past 8 5 1621 1636 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
anthro-bio geo |
spellingShingle |
anthro-bio geo B. Chapligin H. Meyer G. E. A. Swann C. Meyer-Jacob H.-W. Hubberten A 250 ka oxygen isotope record from diatoms at Lake El'gygytgyn, far east Russian Arctic |
topic_facet |
anthro-bio geo |
description |
In 2003 sediment core Lz1024 was drilled at Lake El'gygytgyn, far east Russian Arctic, in an area of the Northern Hemisphere which has not been glaciated for the last 3.6 Ma. Biogenic silica was used for analysing the oxygen isotope composition (δ18Odiatom) in the upper 13 m long section dating back about 250 ka with samples dominated by one taxa in the Cyclotella ocellata). Downcore variations in δ18O values show that glacial-interglacial cycles are present throughout the core and δ18Odiatom-values are mainly controlled by δ18Oprecipitation. Changes reflect the Holocene Thermal Maximum, the Last Glacial Maximum (LGM) and the interglacial periods corresponding to MIS 5.5 and MIS 7 with a peak-to-peak amplitude between LGM and MIS 5.5 of Δ18O = 5.3‰. This corresponds to a mean annual air temperature difference of about 9 °C. Our record is the first continuous δ18Odiatom record from an Arctic lake sediment core directly responding to precipitation and dating back more than 250 ka and correlates well with the stacked marine δ18O LR04 (r = 0.58) and δD EPICA Dome-C record (r = 0.69). With δ18O results indicating strong links to both marine and ice-core records, records from Lake El'gygytgyn can be used to further investigate the sensitivity of the Arctic climate to both past and future global climatic changes. |
format |
Article in Journal/Newspaper |
author |
B. Chapligin H. Meyer G. E. A. Swann C. Meyer-Jacob H.-W. Hubberten |
author_facet |
B. Chapligin H. Meyer G. E. A. Swann C. Meyer-Jacob H.-W. Hubberten |
author_sort |
B. Chapligin |
title |
A 250 ka oxygen isotope record from diatoms at Lake El'gygytgyn, far east Russian Arctic |
title_short |
A 250 ka oxygen isotope record from diatoms at Lake El'gygytgyn, far east Russian Arctic |
title_full |
A 250 ka oxygen isotope record from diatoms at Lake El'gygytgyn, far east Russian Arctic |
title_fullStr |
A 250 ka oxygen isotope record from diatoms at Lake El'gygytgyn, far east Russian Arctic |
title_full_unstemmed |
A 250 ka oxygen isotope record from diatoms at Lake El'gygytgyn, far east Russian Arctic |
title_sort |
250 ka oxygen isotope record from diatoms at lake el'gygytgyn, far east russian arctic |
publisher |
Copernicus Publications |
publishDate |
2012 |
url |
https://doi.org/10.5194/cp-8-1621-2012 http://www.clim-past.net/8/1621/2012/cp-8-1621-2012.pdf https://doaj.org/article/eac77e2e98504bd68b049bf0b930f8d8 |
long_lat |
ENVELOPE(-130.826,-130.826,57.231,57.231) |
geographic |
Arctic Arctic Lake |
geographic_facet |
Arctic Arctic Lake |
genre |
Arctic EPICA ice core |
genre_facet |
Arctic EPICA ice core |
op_source |
Climate of the Past, Vol 8, Iss 5, Pp 1621-1636 (2012) |
op_relation |
doi:10.5194/cp-8-1621-2012 1814-9324 1814-9332 http://www.clim-past.net/8/1621/2012/cp-8-1621-2012.pdf https://doaj.org/article/eac77e2e98504bd68b049bf0b930f8d8 |
op_rights |
undefined |
op_doi |
https://doi.org/10.5194/cp-8-1621-2012 |
container_title |
Climate of the Past |
container_volume |
8 |
container_issue |
5 |
container_start_page |
1621 |
op_container_end_page |
1636 |
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1766320421251055616 |