UIS Commission on Karst Hydrogeology and Speleogenesis
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Glossary

Glossary of Karst and Cave Terms

hydrogeologic unit
1. Any soil or rock unit or zone which by virtue of its hydraulic properties has a distinct influence on the storage or movement of ground water [22]. 2. Means a soil or rock unit or zone which by virtue of its porosity or permeability, or lack thereof, has a distinct influence on the storage or movement of ground water [22].