E&G Quaternary Science Journal
E&G Quaternary Science Journal
EGQSJ
Articles | Volume 75, issue 2
Articles | Volume 75, issue 2
https://doi.org/10.5194/egqsj-75-173-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/egqsj-75-173-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 75, issue 2
Research article
 | 
14 Oct 2026
Research article |  | 14 Oct 2026

Paleoseasonality through serial stable isotope analysis of Pleistocene to recent Etheria elliptica shells from the middle Atbara River, eastern Sudan

Aisha Huseen, Robert Bussert, Mosab Mohammednoor, Ulrich Struck, Sumiko Tsukamoto, Ali Eisawi, and Faysal Bibi

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Short summary
Oxygen isotopes from Atbara River shells reveal that rainfall seasonality has remained similar to modern patterns for about 200 ka, highlighting persistent seasonality that structured savanna ecosystems. Carbon isotopes were more enriched in the Late Pleistocene for reasons still unclear. Today, the Atbara local meteoric water line matches other Nile basin rivers, reflecting strong evaporation and mixed moisture sources.
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