Profiles of diatoms, pollen, XRD, XRF and organic composition of two sediment cores (PG2022 and PG2023) from Lake Kyutyunda in Yakutia, NE Siberia, Russia
Although the climate development over the Holocene in the Northern Hemisphere is well known, palaeolimnological climate reconstructions reveal spatiotemporal variability in northern Eurasia. Here we present a multi-proxy study from north-eastern Siberia combining sediment geochemistry, and diatom an...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.848906 2023-05-15T16:37:46+02:00 Profiles of diatoms, pollen, XRD, XRF and organic composition of two sediment cores (PG2022 and PG2023) from Lake Kyutyunda in Yakutia, NE Siberia, Russia Biskaborn, Boris K Subetto, Dmitry A Savelieva, Larissa A Vakhrameeva, Polina Hansche, Andreas Herzschuh, Ulrike Klemm, Juliane Heinecke, Liv Pestryakova, Luidmila A Meyer, Hanno Kuhn, Gerhard Diekmann, Bernhard MEDIAN LATITUDE: 69.628407 * MEDIAN LONGITUDE: 123.649367 * SOUTH-BOUND LATITUDE: 69.628370 * WEST-BOUND LONGITUDE: 123.648130 * NORTH-BOUND LATITUDE: 69.628520 * EAST-BOUND LONGITUDE: 123.649780 * DATE/TIME START: 2010-08-18T00:00:00 * DATE/TIME END: 2010-08-20T00:00:00 2016-08-27 application/zip, 12 datasets https://doi.pangaea.de/10.1594/PANGAEA.848906 https://doi.org/10.1594/PANGAEA.848906 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.848906 https://doi.org/10.1594/PANGAEA.848906 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Biskaborn, Boris K; Subetto, Dmitry A; Savelieva, Larissa A; Vakhrameeva, Polina; Hansche, Andreas; Herzschuh, Ulrike; Klemm, Juliane; Heinecke, Liv; Pestryakova, Luidmila A; Meyer, Hanno; Kuhn, Gerhard; Diekmann, Bernhard (2016): Late Quaternary vegetation and lake system dynamics in north-eastern Siberia: Implications for seasonal climate variability. Quaternary Science Reviews, 147, 406-421, https://doi.org/10.1016/j.quascirev.2015.08.014 AWI_PerDyn Permafrost Research (Periglacial Dynamics) @ AWI SibLake Dataset 2016 ftpangaea https://doi.org/10.1594/PANGAEA.848906 https://doi.org/10.1016/j.quascirev.2015.08.014 2023-01-20T07:33:30Z Although the climate development over the Holocene in the Northern Hemisphere is well known, palaeolimnological climate reconstructions reveal spatiotemporal variability in northern Eurasia. Here we present a multi-proxy study from north-eastern Siberia combining sediment geochemistry, and diatom and pollen data from lake-sediment cores covering the last 38,000 cal. years. Our results show major changes in pyrite content and fragilarioid diatom species distributions, indicating prolonged seasonal lake-ice cover between ~13,500 and ~8,900 cal. years BP and possibly during the 8,200 cal. years BP cold event. A pollen-based climate reconstruction generated a mean July temperature of 17.8°C during the Holocene Thermal Maximum (HTM) between ~8,900 and ~4,500 cal. years BP. Naviculoid diatoms appear in the late Holocene indicating a shortening of the seasonal ice cover that continues today. Our results reveal a strong correlation between the applied terrestrial and aquatic indicators and natural seasonal climate dynamics in the Holocene. Planktonic diatoms show a strong response to changes in the lake ecosystem due to recent climate warming in the Anthropocene. We assess other palaeolimnological studies to infer the spatiotemporal pattern of the HTM and affirm that the timing of its onset, a difference of up to 3,000 years from north to south, can be well explained by climatic teleconnections. The westerlies brought cold air to this part of Siberia until the Laurentide ice-sheet vanished 7,000 years ago. The apparent delayed ending of the HTM in the central Siberian record can be ascribed to the exceedance of ecological thresholds trailing behind increases in winter temperatures and decreases in contrast in insolation between seasons during the mid to late Holocene as well as lacking differentiation between summer and winter trends in paleolimnological reconstructions. Dataset Ice Ice Sheet permafrost Yakutia Siberia PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(123.648130,123.649780,69.628520,69.628370) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
AWI_PerDyn Permafrost Research (Periglacial Dynamics) @ AWI SibLake |
spellingShingle |
AWI_PerDyn Permafrost Research (Periglacial Dynamics) @ AWI SibLake Biskaborn, Boris K Subetto, Dmitry A Savelieva, Larissa A Vakhrameeva, Polina Hansche, Andreas Herzschuh, Ulrike Klemm, Juliane Heinecke, Liv Pestryakova, Luidmila A Meyer, Hanno Kuhn, Gerhard Diekmann, Bernhard Profiles of diatoms, pollen, XRD, XRF and organic composition of two sediment cores (PG2022 and PG2023) from Lake Kyutyunda in Yakutia, NE Siberia, Russia |
topic_facet |
AWI_PerDyn Permafrost Research (Periglacial Dynamics) @ AWI SibLake |
description |
Although the climate development over the Holocene in the Northern Hemisphere is well known, palaeolimnological climate reconstructions reveal spatiotemporal variability in northern Eurasia. Here we present a multi-proxy study from north-eastern Siberia combining sediment geochemistry, and diatom and pollen data from lake-sediment cores covering the last 38,000 cal. years. Our results show major changes in pyrite content and fragilarioid diatom species distributions, indicating prolonged seasonal lake-ice cover between ~13,500 and ~8,900 cal. years BP and possibly during the 8,200 cal. years BP cold event. A pollen-based climate reconstruction generated a mean July temperature of 17.8°C during the Holocene Thermal Maximum (HTM) between ~8,900 and ~4,500 cal. years BP. Naviculoid diatoms appear in the late Holocene indicating a shortening of the seasonal ice cover that continues today. Our results reveal a strong correlation between the applied terrestrial and aquatic indicators and natural seasonal climate dynamics in the Holocene. Planktonic diatoms show a strong response to changes in the lake ecosystem due to recent climate warming in the Anthropocene. We assess other palaeolimnological studies to infer the spatiotemporal pattern of the HTM and affirm that the timing of its onset, a difference of up to 3,000 years from north to south, can be well explained by climatic teleconnections. The westerlies brought cold air to this part of Siberia until the Laurentide ice-sheet vanished 7,000 years ago. The apparent delayed ending of the HTM in the central Siberian record can be ascribed to the exceedance of ecological thresholds trailing behind increases in winter temperatures and decreases in contrast in insolation between seasons during the mid to late Holocene as well as lacking differentiation between summer and winter trends in paleolimnological reconstructions. |
format |
Dataset |
author |
Biskaborn, Boris K Subetto, Dmitry A Savelieva, Larissa A Vakhrameeva, Polina Hansche, Andreas Herzschuh, Ulrike Klemm, Juliane Heinecke, Liv Pestryakova, Luidmila A Meyer, Hanno Kuhn, Gerhard Diekmann, Bernhard |
author_facet |
Biskaborn, Boris K Subetto, Dmitry A Savelieva, Larissa A Vakhrameeva, Polina Hansche, Andreas Herzschuh, Ulrike Klemm, Juliane Heinecke, Liv Pestryakova, Luidmila A Meyer, Hanno Kuhn, Gerhard Diekmann, Bernhard |
author_sort |
Biskaborn, Boris K |
title |
Profiles of diatoms, pollen, XRD, XRF and organic composition of two sediment cores (PG2022 and PG2023) from Lake Kyutyunda in Yakutia, NE Siberia, Russia |
title_short |
Profiles of diatoms, pollen, XRD, XRF and organic composition of two sediment cores (PG2022 and PG2023) from Lake Kyutyunda in Yakutia, NE Siberia, Russia |
title_full |
Profiles of diatoms, pollen, XRD, XRF and organic composition of two sediment cores (PG2022 and PG2023) from Lake Kyutyunda in Yakutia, NE Siberia, Russia |
title_fullStr |
Profiles of diatoms, pollen, XRD, XRF and organic composition of two sediment cores (PG2022 and PG2023) from Lake Kyutyunda in Yakutia, NE Siberia, Russia |
title_full_unstemmed |
Profiles of diatoms, pollen, XRD, XRF and organic composition of two sediment cores (PG2022 and PG2023) from Lake Kyutyunda in Yakutia, NE Siberia, Russia |
title_sort |
profiles of diatoms, pollen, xrd, xrf and organic composition of two sediment cores (pg2022 and pg2023) from lake kyutyunda in yakutia, ne siberia, russia |
publisher |
PANGAEA |
publishDate |
2016 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.848906 https://doi.org/10.1594/PANGAEA.848906 |
op_coverage |
MEDIAN LATITUDE: 69.628407 * MEDIAN LONGITUDE: 123.649367 * SOUTH-BOUND LATITUDE: 69.628370 * WEST-BOUND LONGITUDE: 123.648130 * NORTH-BOUND LATITUDE: 69.628520 * EAST-BOUND LONGITUDE: 123.649780 * DATE/TIME START: 2010-08-18T00:00:00 * DATE/TIME END: 2010-08-20T00:00:00 |
long_lat |
ENVELOPE(123.648130,123.649780,69.628520,69.628370) |
genre |
Ice Ice Sheet permafrost Yakutia Siberia |
genre_facet |
Ice Ice Sheet permafrost Yakutia Siberia |
op_source |
Supplement to: Biskaborn, Boris K; Subetto, Dmitry A; Savelieva, Larissa A; Vakhrameeva, Polina; Hansche, Andreas; Herzschuh, Ulrike; Klemm, Juliane; Heinecke, Liv; Pestryakova, Luidmila A; Meyer, Hanno; Kuhn, Gerhard; Diekmann, Bernhard (2016): Late Quaternary vegetation and lake system dynamics in north-eastern Siberia: Implications for seasonal climate variability. Quaternary Science Reviews, 147, 406-421, https://doi.org/10.1016/j.quascirev.2015.08.014 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.848906 https://doi.org/10.1594/PANGAEA.848906 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.848906 https://doi.org/10.1016/j.quascirev.2015.08.014 |
_version_ |
1766028070423101440 |