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From cave to spring: Understanding transport of suspended sediment particles in a fully phreatic karst conduit using particle analysis and geochemical methods

Mueller, Yanina K. 1; Goldscheider, Nico 1; Eiche, Elisabeth ORCID iD icon 1; Emberger, Hanna 1; Goeppert, Nadine 1
1 Institut für Angewandte Geowissenschaften (AGW), Karlsruher Institut für Technologie (KIT)

Abstract:

Karst aquifers are vulnerable to contamination, especially in the context of heavy rainfall events. Contamination is often associated with turbidity that can originate from the soil zone, infiltrating surface waters or resuspension of previously deposited sediments within the aquifer. While turbidity events can be well monitored at karst springs,
related information about the sediment origin and the spatiotemporal input function usually remain unknown. Thus, the mobility and attenuation of the particulate matter and associated pollutants can hardly be determined quantitatively. A tracer test with suspended cave sediments and solute tracers for comparison has hence been performed in a karst aquifer at the Blue Spring (Blautopf) in Southern Germany. The tracers were injected in the cave system, at the beginning of a fully phreatic karst conduit, and monitored at the spring after a travel distance of 1250 m. The particle-size
distribution was monitored using a particle counter and sediment samples were filtered with 0.45-μm cellulose acetate filters. Particles on the filter were analysed for major and trace elements as well as rare earth elements (REE) by ICP-MS after acid digestion. ... mehr

Zugehörige Institution(en) am KIT Institut für Angewandte Geowissenschaften (AGW)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 10.2023
Sprache Englisch
Identifikator ISSN: 0885-6087, 1099-1085
KITopen-ID: 1000163923
Erschienen in Hydrological Processes
Verlag John Wiley and Sons
Band 37
Heft 10
Vorab online veröffentlicht am 18.10.2023
Nachgewiesen in Scopus
Web of Science
Dimensions

Verlagsausgabe §
DOI: 10.5445/IR/1000163923
Veröffentlicht am 13.11.2023
Originalveröffentlichung
DOI: 10.1002/hyp.14979
Scopus
Zitationen: 3
Web of Science
Zitationen: 1
Dimensions
Zitationen: 2
Seitenaufrufe: 109
seit 14.11.2023
Downloads: 103
seit 15.11.2023
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