Understanding the geochemical composition of alluvial sediments in a complex environmental system – A case study of the Mura/Mur river

[Display omitted] •geochemical landscape of sediments in post–industrial area was studied.•seven geochemical associations were detected.•natural associations are linked to bedrock composition and weathering.•natural ore occurrences and mining impacts sediment geochemistry.•anthropogenic impacts are...

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Bibliographic Details
Published in:Catena (Giessen) 2025-02, Vol.249, Article 108605
Main Authors: Barbara, Čeplak, Ulrike, Moser, Johanna, Irrgeher, Martin, Šala, Polona, Kralj, Gorazd, Žibret
Format: Article
Language:English
Subjects:
CIA
Factor analysis
Geochemistry
ICV
Particle characterization
PIA
River sediments
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Summary:[Display omitted] •geochemical landscape of sediments in post–industrial area was studied.•seven geochemical associations were detected.•natural associations are linked to bedrock composition and weathering.•natural ore occurrences and mining impacts sediment geochemistry.•anthropogenic impacts are linked to metal industry, urbanization and possibly farming. The study provides a comprehensive investigation of the geochemical properties of stream and alluvial sediments in an area characterised by a complex natural (geochemical) and anthropogenic environment of the transboundary Mura River (Austria, Slovenia, EU). A total of 65 sediment samples from active river channel and tributaries, and 59 samples from 6 floodplain sediment profiles were collected and analysed. ICP–MS analysis was used to determine the levels of 59 elements in two fractions (
ISSN:0341-8162
DOI:10.1016/j.catena.2024.108605