Diatom responses and geochemical feedbacks to environmental changes at Lake Rauchuagytgyn (Far East Russian Arctic)

Biskaborn, Boris K.; Forster, Amy; Pfalz, Gregor; Pestryakova, Lyudmila A.; Stoof-Leichsenring, Kathleen; Strauss, Jens; Kröger, Tim; Herzschuh, Ulrike

doi:https://doi.org/10.5194/bg-20-1691-2023

Articles | Volume 20, issue 9

https://doi.org/10.5194/bg-20-1691-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/bg-20-1691-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 20, issue 9

Research article

|

04 May 2023

Research article |

| 04 May 2023

Diatom responses and geochemical feedbacks to environmental changes at Lake Rauchuagytgyn (Far East Russian Arctic)

Boris K. Biskaborn, Amy Forster, Gregor Pfalz, Lyudmila A. Pestryakova, Kathleen Stoof-Leichsenring, Jens Strauss, Tim Kröger, and Ulrike Herzschuh

Supplement

https://doi.org/10.5194/bg-20-1691-2023-supplement

Data sets

Diatom species from sediment core EN18218, Lake Rauchuagytgyn, expedition to Chukotka 2018, Russian Arctic B. K. Biskaborn, A. Forster, and G. Pfalz https://doi.org/10.1594/PANGAEA.953126

Diatom species from sediment core 16-KP-04-L19B, Lake Rauchuagytgyn, expedition to Chukotka 2016, Russian Arctic B. K. Biskaborn, A. Forster, G. Pfalz, and K. R. Stoof-Leichsenring https://doi.org/10.1594/PANGAEA.953138

Accumulation rates from sediment core EN18218, Lake Rauchuagytgyn, expedition to Chukotka 2018, Russian Arctic. B. K. Biskaborn, A. Forster, and G. Pfalz https://doi.org/10.1594/PANGAEA.953132

Accumulation rates from sediment core 16-KP-04-L19B, Lake Rauchuagytgyn, expedition to Chukotka 2016, Russian Arctic B. K. Biskaborn, A. Forster, G. Pfalz, and K. R. Stoof-Leichsenring https://doi.org/10.1594/PANGAEA.953142

Geochemistry data from sediment core 16-KP-04-L19B, Lake Rauchuagytgyn, expedition to Chukotka 2016, Russian Arctic B. K. Biskaborn, A. Forster, G. Pfalz, and K. R. Stoof-Leichsenring https://doi.org/10.1594/PANGAEA.953134

Mercury from sediment core EN18218, Lake Rauchuagytgyn, expedition to Chukotka 2018, Russian Arctic B. K. Biskaborn, A. Forster, and G. Pfalz https://doi.org/10.1594/PANGAEA.953130

Nitrogen from sediment core EN18218, Lake Rauchuagytgyn, expedition to Chukotka 2018, Russian Arctic B. K. Biskaborn, A. Forster, and G. Pfalz https://doi.org/10.1594/PANGAEA.953129

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Short summary

Lake sediment from the Russian Arctic was studied for microalgae and organic matter chemistry dated back to the last glacial 28 000 years. Species and chemistry responded to environmental changes such as the Younger Dryas cold event and the Holocene thermal maximum. Organic carbon accumulation correlated with rates of microalgae deposition only during warm episodes but not during the cold glacial.