Groos, Alexander R.; Akçar, Naki; Yesilyurt, Serdar; Miehe, Georg; Vockenhuber, Christof; Veit, Heinz (2021). Nonuniform Late Pleistocene glacier fluctuations in tropical Eastern Africa. Science Advances, 7(11), eabb6826. American Association for the Advancement of Science 10.1126/sciadv.abb6826
|
Text
eabb6826.full.pdf - Published Version Available under License Creative Commons: Attribution (CC-BY). Download (5MB) | Preview |
Today’s ice caps and glaciers in Africa are restricted to the highest peaks, but during the Pleistocene, several mountains on the continent were extensively glaciated. However, little is known about regional differences in the timing and extent of past glaciations and the impact of paleoclimatic changes on the afro-alpine environment and settlement history. Here, we present a glacial chronology for the Ethiopian Highlands in comparison with other East African Mountains. In the Ethiopian Highlands, glaciers reached their maximum 42 to 28 ka thousand years ago before the global Last Glacial Maximum. The local maximum was accompanied by a temperature depression of 4.4° to 6.0°C and a ~700-m downward shift of the afro-alpine vegetation belt, reshaping the human and natural habitats. The chronological comparison reveals that glaciers in Eastern Africa responded in a nonuniform way to past climatic changes, indicating a regionally varying influence of precipitation, temperature, and orography on paleoglacier dynamics.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
08 Faculty of Science > Institute of Geography > Physical Geography > Unit Paleo-Geoecology 08 Faculty of Science > Institute of Geological Sciences 08 Faculty of Science > Institute of Geological Sciences > Exogenous Geology 08 Faculty of Science > Institute of Geography |
UniBE Contributor: |
Groos, Alexander Raphael, Akçar, Naki, Veit, Heinz |
Subjects: |
500 Science > 550 Earth sciences & geology |
ISSN: |
2375-2548 |
Publisher: |
American Association for the Advancement of Science |
Funders: |
[UNSPECIFIED] Swiss National Science Foundation ; [UNSPECIFIED] German Research Foundation |
Language: |
English |
Submitter: |
Alexander Raphael Groos |
Date Deposited: |
06 Apr 2021 16:38 |
Last Modified: |
05 Dec 2022 15:49 |
Publisher DOI: |
10.1126/sciadv.abb6826 |
BORIS DOI: |
10.48350/153827 |
URI: |
https://boris.unibe.ch/id/eprint/153827 |
Actions (login required)
 |
Edit item |