Articles | Volume 23, issue 16
https://doi.org/10.5194/bg-23-5741-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-23-5741-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
20 Aug 2026
Research article |
| 20 Aug 2026
| 20 Aug 2026
Spatial variability of Fe and Mn in surface lake sediments and its implications for paleoredox studies – a case study of Lake Łazduny (Poland)
Maurycy Żarczyński
CORRESPONDING AUTHOR
Department of Geomorphology and Quaternary Geology, Faculty of Oceanography and Geography, University of Gdańsk, Gdańsk, 80309, Poland
Dirk Enters
Lower Saxony Institute for Historical Coastal Research, 26382 Wilhelmshaven, Germany
Institute of Geography, University of Bremen, 28359 Bremen, Germany
Beata Szymczycha
Department of Marine Chemistry and Biochemistry, Institute of Oceanology of the Polish Academy of Sciences, Sopot, 81712, Poland
Wojciech Tylmann
Department of Geomorphology and Quaternary Geology, Faculty of Oceanography and Geography, University of Gdańsk, Gdańsk, 80309, Poland
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Short summary
Sediments of thirty-one short cores from a small lake in NE Poland were studied to better understand the elemental response of the deposits in relation to changing water column conditions. We found that iron (Fe) and manganese (Mn) burial is controlled by geochemical focusing – a tendency of elements to concentrate in a given spot – and that sediment lithology is intrinsically connected to prevailing oxygen conditions. This sheds new light on indicators of past water oxygenation.
Sediments of thirty-one short cores from a small lake in NE Poland were studied to better...
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