Article (Scientific journals)
Point Dilution Tracer Test to Assess Slow Groundwater Flow in an Auxiliary Karst System (Lake of Fontaine de Rivîre, Belgium)
Meus, Philippe; Flament, Jérémy; Willems, Luc et al.
2018In Eurokarst 2018 Proccedings
Peer reviewed
 

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Keywords :
Dilution test; Uranine; Natural tracer; Climate; Active charcoal; Karst flow
Abstract :
[en] The quantification of mass transfer through auxiliary karst systems is addressed by using a specific point dilution long-term tracer test. The physical functioning of such systems is usually only inferred by hydrodynamical and environmental tracer data, whose interpretation often relies on invalidated assumptions. The new approach is a way for experimentally validating or complementing the classical approaches. The lake of Fontaine de Rivîre is an auxiliary karst system in the Frasnian limestones of the Ourthe Valley in Belgium. Its particular confinement was studied by conjunctional use of natural responses and single-point dilution tracer test, with an injection of 41 g of uranine on 22 March 2017. The tracer test was monitored during one year using fluorometers, water and charcoal samplings at five points in the lake and six points at the surface (no connection having been established outside).
Disciplines :
Earth sciences & physical geography
Author, co-author :
Meus, Philippe;  European Water Tracing Services, Nandrin
Flament, Jérémy
Willems, Luc 
Funcken, Luc;  Université de Liège - ULiège > Département de géologie > Pétrologie sédimentaire
Roba, Gauthier
Chauveau,, Claire A.
Godissart, Jean
Ek, Camille  ;  Université de Liège - ULiège > Département de géologie > Département de géologie
Language :
English
Title :
Point Dilution Tracer Test to Assess Slow Groundwater Flow in an Auxiliary Karst System (Lake of Fontaine de Rivîre, Belgium)
Publication date :
2018
Journal title :
Eurokarst 2018 Proccedings
Peer reviewed :
Peer reviewed
Available on ORBi :
since 03 May 2019

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