East Siberian ice wedges recording dust transport variability during the Late Pleistocene

Soyeon Kim, Hyunwoo Lee (), Jeongmin Kim, Yuyoung Lee, Jeong-Heon Choi, Mi Jung Lee, Ui-Jin Kwon, Go Iwahana, Thomas Opel, Hanno Meyer, Sebastian Wetterich, Alexander Fedorov and Jinho Ahn
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Soyeon Kim: Seoul National University
Hyunwoo Lee: Seoul National University
Jeongmin Kim: Korea Basic Science Institute
Yuyoung Lee: Korea Basic Science Institute
Jeong-Heon Choi: Korea Basic Science Institute
Mi Jung Lee: Korea Polar Research Institute
Ui-Jin Kwon: Seoul National University
Go Iwahana: University of Alaska
Thomas Opel: Helmholtz Centre for Polar and Marine Research
Hanno Meyer: Helmholtz Centre for Polar and Marine Research
Sebastian Wetterich: Helmholtz Centre for Polar and Marine Research
Alexander Fedorov: Siberian Branch RAS
Jinho Ahn: Seoul National University

Nature Communications, 2025, vol. 16, issue 1, 1-10

Abstract: Abstract During the Late Pleistocene, a severely cold and dry climate strengthened dust production across the Northern Hemisphere. Despite many studies examining aridification and dust production, there is a lack of understanding about dust transportation during global climate variability. Long-range transported (LRT) dust can be traced by comparing global geochemical signatures and constraining provenance relationships. Here we report rare earth element abundances and strontium, neodymium, and oxygen isotope compositions of inorganic substances in ice wedges from Batagay and Central Yakutia (Cyuie and Churapcha), which comprise Yedoma deposits that formed in unglaciated Beringia. Distinct geochemical properties reflect differences between local and LRT dust contributions. Particles in the Batagay ice wedges show higher similarities to Chinese aeolian deposits, while those in Central Yakutia indicate stronger local input. These provenance constraints highlight variability in atmospheric circulation transporting dust to the Arctic during the Late Pleistocene, linking climate changes to aerosol distribution.

Date: 2025
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DOI: 10.1038/s41467-025-65772-2

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