Oxygen isotope composition of diatoms as Late Holocene climate proxy at Two-Yurts-Lake, Central Kamchatka, Russia
Especially in combination with other proxies, the oxygen isotope composition of diatom silica (δ18Odiatom) from lake sediments is useful for interpreting past climate conditions. This paper presents the first oxygen isotope data of fossil diatoms from Kamchatka, Russia, derived from sediment cores f...
Published in: | Global and Planetary Change |
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Online Access: | https://epic.awi.de/id/eprint/36415/ https://epic.awi.de/id/eprint/36415/2/82_Meyer_2014_GPC.pdf http://www.sciencedirect.com/science/article/pii/S0921818114001696 https://hdl.handle.net/10013/epic.44252 https://hdl.handle.net/10013/epic.44252.d002 |
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ftawi:oai:epic.awi.de:36415 2024-09-15T17:36:29+00:00 Oxygen isotope composition of diatoms as Late Holocene climate proxy at Two-Yurts-Lake, Central Kamchatka, Russia Meyer, Hanno Chapligin, Bernhard Hoff, Ulrike Nazarova, Larisa Diekmann, Bernhard 2014-09-01 application/pdf https://epic.awi.de/id/eprint/36415/ https://epic.awi.de/id/eprint/36415/2/82_Meyer_2014_GPC.pdf http://www.sciencedirect.com/science/article/pii/S0921818114001696 https://hdl.handle.net/10013/epic.44252 https://hdl.handle.net/10013/epic.44252.d002 unknown ELSEVIER SCIENCE BV https://epic.awi.de/id/eprint/36415/2/82_Meyer_2014_GPC.pdf https://hdl.handle.net/10013/epic.44252.d002 Meyer, H. orcid:0000-0003-4129-4706 , Chapligin, B. , Hoff, U. , Nazarova, L. and Diekmann, B. orcid:0000-0001-5129-3649 (2014) Oxygen isotope composition of diatoms as Late Holocene climate proxy at Two-Yurts-Lake, Central Kamchatka, Russia , Global and Planetary Change . doi:10.1016/j.gloplacha.2014.04.008 <https://doi.org/10.1016/j.gloplacha.2014.04.008> , hdl:10013/epic.44252 EPIC3Global and Planetary Change, ELSEVIER SCIENCE BV, ISSN: 0921-8181 Article isiRev 2014 ftawi https://doi.org/10.1016/j.gloplacha.2014.04.008 2024-06-24T04:09:53Z Especially in combination with other proxies, the oxygen isotope composition of diatom silica (δ18Odiatom) from lake sediments is useful for interpreting past climate conditions. This paper presents the first oxygen isotope data of fossil diatoms from Kamchatka, Russia, derived from sediment cores from Two-Yurts Lake (TYL). For reconstructing Late Holocene climate change, palaeolimnological investigations also included diatom, pollen and chironomid analysis. The most recent diatom sample (δ18Odiatom = + 23.3‰) corresponds well with the present day isotopic composition of the TYL water (mean δ18O = − 14.8‰) displaying a reasonable isotope fractionation in the system silica-water. Nonetheless, the TYL δ18Odiatom record is mainly controlled by changes in the isotopic composition of the lake water. TYL is considered as a dynamic system triggered by differential environmental changes closely linked with lake-internal hydrological factors. The diatom silica isotope record displays large variations in δ18Odiatom from + 27.3‰ to + 23.3‰ from about ~ 4.5 kyr BP until today. A continuous depletion in δ18Odiatom of 4.0‰ is observed in the past 4.5 kyr, which is in good accordance with other hemispheric environmental changes (i.e. a summer insolation-driven Mid- to Late Holocene cooling). The overall cooling trend is superimposed by regional hydrological and atmospheric–oceanic changes. These are related to the interplay between Siberian High and Aleutian Low as well as to the ice dynamics in the Sea of Okhotsk. Additionally, combined δ18Odiatom and chironomid interpretations provide new information on changes related to meltwater input to lakes. Hence, this diatom isotope study provides further insight into hydrology and climate dynamics of this remote, rarely investigated area. Article in Journal/Newspaper aleutian low Kamchatka Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Global and Planetary Change 134 118 128 |
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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 |
Especially in combination with other proxies, the oxygen isotope composition of diatom silica (δ18Odiatom) from lake sediments is useful for interpreting past climate conditions. This paper presents the first oxygen isotope data of fossil diatoms from Kamchatka, Russia, derived from sediment cores from Two-Yurts Lake (TYL). For reconstructing Late Holocene climate change, palaeolimnological investigations also included diatom, pollen and chironomid analysis. The most recent diatom sample (δ18Odiatom = + 23.3‰) corresponds well with the present day isotopic composition of the TYL water (mean δ18O = − 14.8‰) displaying a reasonable isotope fractionation in the system silica-water. Nonetheless, the TYL δ18Odiatom record is mainly controlled by changes in the isotopic composition of the lake water. TYL is considered as a dynamic system triggered by differential environmental changes closely linked with lake-internal hydrological factors. The diatom silica isotope record displays large variations in δ18Odiatom from + 27.3‰ to + 23.3‰ from about ~ 4.5 kyr BP until today. A continuous depletion in δ18Odiatom of 4.0‰ is observed in the past 4.5 kyr, which is in good accordance with other hemispheric environmental changes (i.e. a summer insolation-driven Mid- to Late Holocene cooling). The overall cooling trend is superimposed by regional hydrological and atmospheric–oceanic changes. These are related to the interplay between Siberian High and Aleutian Low as well as to the ice dynamics in the Sea of Okhotsk. Additionally, combined δ18Odiatom and chironomid interpretations provide new information on changes related to meltwater input to lakes. Hence, this diatom isotope study provides further insight into hydrology and climate dynamics of this remote, rarely investigated area. |
format |
Article in Journal/Newspaper |
author |
Meyer, Hanno Chapligin, Bernhard Hoff, Ulrike Nazarova, Larisa Diekmann, Bernhard |
spellingShingle |
Meyer, Hanno Chapligin, Bernhard Hoff, Ulrike Nazarova, Larisa Diekmann, Bernhard Oxygen isotope composition of diatoms as Late Holocene climate proxy at Two-Yurts-Lake, Central Kamchatka, Russia |
author_facet |
Meyer, Hanno Chapligin, Bernhard Hoff, Ulrike Nazarova, Larisa Diekmann, Bernhard |
author_sort |
Meyer, Hanno |
title |
Oxygen isotope composition of diatoms as Late Holocene climate proxy at Two-Yurts-Lake, Central Kamchatka, Russia |
title_short |
Oxygen isotope composition of diatoms as Late Holocene climate proxy at Two-Yurts-Lake, Central Kamchatka, Russia |
title_full |
Oxygen isotope composition of diatoms as Late Holocene climate proxy at Two-Yurts-Lake, Central Kamchatka, Russia |
title_fullStr |
Oxygen isotope composition of diatoms as Late Holocene climate proxy at Two-Yurts-Lake, Central Kamchatka, Russia |
title_full_unstemmed |
Oxygen isotope composition of diatoms as Late Holocene climate proxy at Two-Yurts-Lake, Central Kamchatka, Russia |
title_sort |
oxygen isotope composition of diatoms as late holocene climate proxy at two-yurts-lake, central kamchatka, russia |
publisher |
ELSEVIER SCIENCE BV |
publishDate |
2014 |
url |
https://epic.awi.de/id/eprint/36415/ https://epic.awi.de/id/eprint/36415/2/82_Meyer_2014_GPC.pdf http://www.sciencedirect.com/science/article/pii/S0921818114001696 https://hdl.handle.net/10013/epic.44252 https://hdl.handle.net/10013/epic.44252.d002 |
genre |
aleutian low Kamchatka |
genre_facet |
aleutian low Kamchatka |
op_source |
EPIC3Global and Planetary Change, ELSEVIER SCIENCE BV, ISSN: 0921-8181 |
op_relation |
https://epic.awi.de/id/eprint/36415/2/82_Meyer_2014_GPC.pdf https://hdl.handle.net/10013/epic.44252.d002 Meyer, H. orcid:0000-0003-4129-4706 , Chapligin, B. , Hoff, U. , Nazarova, L. and Diekmann, B. orcid:0000-0001-5129-3649 (2014) Oxygen isotope composition of diatoms as Late Holocene climate proxy at Two-Yurts-Lake, Central Kamchatka, Russia , Global and Planetary Change . doi:10.1016/j.gloplacha.2014.04.008 <https://doi.org/10.1016/j.gloplacha.2014.04.008> , hdl:10013/epic.44252 |
op_doi |
https://doi.org/10.1016/j.gloplacha.2014.04.008 |
container_title |
Global and Planetary Change |
container_volume |
134 |
container_start_page |
118 |
op_container_end_page |
128 |
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1810489873062166528 |