aquifuge

aquifuge

[′ak·wə‚fyüj]
(geology)
An impermeable body of rock which contains no interconnected openings or interstices and therefore neither absorbs nor transmits water.
References in periodicals archive ?
However, the current research studies on the mechanism of fault-delayed water inrush mainly focus on factors such as fault dip angle, aquifuge thickness, and the damage of floor strata [36, 37], whereas fewer research studies consider filling media and filling structures in the fault [38].
where K and K' are the permeability coefficients of the aquifer and the aquifuge, respectively; P and I are the water pressure and the hydraulic gradient, respectively; and L and w are the seepage length and the section area, respectively.
Bai, Seepage Characteristics of Top Stratum of Ordovician System and Its Application Study as Key Aquifuge, China University of Mining & Technology, Xuzhou, China, 2008.