Bliedtner, Marcel; Struck, Julian; Strobel, Paul; Salazar, Gary; Szidat, Sönke; Bazarradnaa, Enkhtuya; Lloren, Ronald; Dubois, Nathalie; Zech, Roland (2021). Late Holocene climate changes in the Altai Region based on a first high‐resolution biomarker isotope record from Lake Khar Nuur. Geophysical Research Letters, 48(20) American Geophysical Union 10.1029/2021GL094299
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Bliedtner_Late_Holocene_climate_changes_in_the_Altai_Region__GRL_2021_.pdf - Published Version Available under License Creative Commons: Attribution (CC-BY). © 2021. The Authors. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. Download (1MB) | Preview |
The Late Holocene marks a substantial cultural and economic transition in the eastern Eurasian Steppe and Altai Region with the dispersal of nomadic pastoralism. So far, paleoclimate conditions during this time remain unclear and controversial. Here, we present a high-resolution 4.2 ka paleoclimate record from Lake Khar Nuur in the Mongolian Altai that is based on lake sediment proxies and biomarker compound-specific δ2H analyses. Our results document increased aridity before ∼3.7 cal. ka BP, followed by two pronounced phases of warm and wet conditions from ∼3.5–2.8 to ∼2.3–1.5 cal. ka BP, and a strong increase in aridity since ∼1.5 cal. ka BP. Phases of warmer and wetter conditions coincide with a negative North Atlantic Oscillation, which has been responsible for advecting moisture into the region by more southerly-displaced Westerlies and possibly favored the expansion of mobile nomadic pastoralism in the region.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
08 Faculty of Science > Department of Chemistry, Biochemistry and Pharmaceutical Sciences (DCBP) |
UniBE Contributor: |
Salazar Quintero, Gary Abdiel, Szidat, Sönke |
Subjects: |
500 Science > 540 Chemistry |
ISSN: |
0094-8276 |
Publisher: |
American Geophysical Union |
Language: |
English |
Submitter: |
Sönke Szidat |
Date Deposited: |
25 Oct 2021 08:38 |
Last Modified: |
05 Dec 2022 15:53 |
Publisher DOI: |
10.1029/2021GL094299 |
BORIS DOI: |
10.48350/160200 |
URI: |
https://boris.unibe.ch/id/eprint/160200 |
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