Review: Natural tracers in fractured hard-rock aquifers in the Austrian part of the Eastern Alps - previous approaches and future perspectives for hydrogeology in mountain regions

Titel in Übersetzung: Review: Natural tracers in fractured hard-rock aquifers in the Austrian part of the Eastern Alps—previous approaches and future perspectives for hydrogeology in mountain regions [Revue: Traceurs naturels dans les aquifères de roches dures fracturées dans la partie autrichienne des Alpes orientales—approches antérieures et perspectives futures pour l’hydrogéologie des régions montagneuses] [Revisão: Traçadores naturais em rochas fraturadas na parte Austríaca dos Alpes Orientais—abordagens prévias e perspectivas futuras para hidrogeologia em regiões montanhosas] [Revisión: Trazadores naturales en los acuíferos de rocas duras fracturadas en la parte austríaca de los Alpes orientales—enfoques previos y perspectivas futuras de la hidrogeología en las regiones de montaña]

Publikation: Beitrag in FachzeitschriftArtikel

Abstract

Extensive in-depth research is required for the implementation of natural tracer approaches to hydrogeological investigation to be feasible in mountainous regions. This review considers the application of hydrochemical and biotic parameters in mountain regions over the past few decades with particular reference to the Austrian Alps, as an example for alpine-type mountain belts. A brief introduction to Austria’s hydrogeological arrangement is given to show the significance of fractured hard-rock aquifers for hydrogeological science as well as for water supply purposes. A literature search showed that research concerning fractured hard-rock aquifers in Austria is clearly underrepresented to date, especially when taking the abundance of this aquifer type and the significance of this topic into consideration. The application of abiotic natural tracers (hydrochemical and isotope parameters) is discussed generally and by means of examples from the Austrian Alps. The potential of biotic tracers (microbiota and meiofauna) is elucidated. It is shown that the meiofauna approach to investigating fractured aquifers has not yet been applied in the reviewed region, nor worldwide. Two examples of new approaches in mountainous fractured aquifers are introduced: (1) use of CO2 partial pressure and calcite saturation of spring water to reconstruct catchments and flow dynamics (abiotic approach), and, (2) consideration of hard-rock aquifers as habitats to reconstruct aquifer conditions (biotic approach). © 2016, The Author(s).
OriginalspracheEnglisch
Seiten (von - bis)1091-1105
Seitenumfang15
FachzeitschriftHydrogeology Journal
Jahrgang24
Ausgabenummer5
DOIs
PublikationsstatusVeröffentlicht - 2016

Bibliographische Notiz

24 (5)

Systematik der Wissenschaftszweige 2012

  • 105 Geowissenschaften

Schlagwörter

  • Austria
  • Ecology
  • Fracture rocks
  • Hydrochemistry
  • Natural tracers

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