Contrasting definitions for the term ‘karst aquifer’
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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%.
Karst, Conceptual Models, Dual Porosity, Carbonate Rocks, Silicate Rocks
Hydrogeology Journal, Vol. 25, no. 5 (2017).
Worthington, Stephen R.H.; Jeannin, Pierre-Yves; and Alexander, E. C., "Contrasting definitions for the term ‘karst aquifer’" (2017). KIP Articles. 1224.