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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Bibliographic Details
Main Authors: 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
Format: Article in Journal/Newspaper
Language:English
Published: PANGAEA 2016
Subjects:
SibLake
Permafrost Research Periglacial Dynamics @ AWI AWI_PerDyn
Ice
permafrost
Yakutia
Siberia
Online Access:https://dx.doi.org/10.1594/pangaea.848906
https://doi.pangaea.de/10.1594/PANGAEA.848906
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Summary: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 ... : 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 ...

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