E&G Quaternary Science Journal
E&G Quaternary Science Journal
EGQSJ
Articles | Volume 75, issue 1
Articles | Volume 75, issue 1
https://doi.org/10.5194/egqsj-75-33-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/egqsj-75-33-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 75, issue 1
Research article
 | 
16 Feb 2026
Research article |  | 16 Feb 2026

Historical clay extraction from paleo-channel deposits of the late-glacial Bergstraßenneckar in the Upper Rhine Graben, southwestern Germany

Felix Henselowsky, Annette Kadereit, Manuel Herzog, Barbara Tuczek, Heinrich Thiemeyer, Olaf Bubenzer, and Max Engel

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Short summary
The marshy, silted-up channel of the Late Glacial Bergstraßenneckar near Mannheim provided a rare source of clay in the sand- and gravel-dominated environment of the Rhine river. Based on satellite images, sedimentological, geophysical, and historical data, as well as optical dating, we identify a plot of sand-filled trenches where clay was mined around 1865 CE, which was only possible after groundwater lowering resulting from large-scale river regulation starting in the early 19th century.
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