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Contrasting definitions for the term ‘karst aquifer’

Author:
Worthington, Stephen R. H., Jeannin, Pierre-Yves, Alexander, E. Calvin, Jr, Davies, Gareth J., Schindel, Geary M.
Source:
Hydrogeology journal 2017 v.25 no.5 pp. 1237-1240
ISSN:
1431-2174
Subject:
aquifers, bedrock, caves, karsts, landscapes, turbulent flow
Abstract:
It is generally considered that karst aquifers have distinctly different properties from other bedrock aquifers. A search of the literature found five definitions that have been proposed to differentiate karst aquifers from non-karstic aquifers. The five definitions are based upon the presence of solution channel networks, hydraulic conductivities >10⁻⁶ m/s, karst landscapes, channels with turbulent flow, and caves. The percentage of unconfined carbonate aquifers that would classify as ‘karst’ ranges from <1 to >50%.
Agid:
5745648