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Este verbete ainda não foi traduzido para o seu idioma, portanto o original é exibido abaixo.
aquitard
This is a technical term used exclusively in geology, hydrology, and environmental engineering. It is never used in casual conversation unless the speaker is discussing groundwater systems or soil science. The register is formal and academic.
An aquitard is defined by its relative permeability. While an aquifer allows water to flow easily, an aquitard slows it down significantly. It is important to distinguish this from an aquiclude, which is a theoretical formation that completely blocks the flow of water. In practice, most "blocking" layers are actually leaky aquitards.
Commonly associated with materials like clay or shale, the term describes a functional role within a geological sequence rather than a specific rock type. It is typically used when discussing the protection of deep aquifers from surface contamination or the pressure dynamics of confined groundwater.
Meanings
A geological formation that restricts the flow of groundwater more than an aquifer does.
Examples
The clay layer acts as an aquitard between the two aquifers.
Is this formation a true aquiclude or just a leaky aquitard?
Water moves very slowly through the silt aquitard.
I wonder if the aquitard is thick enough to prevent contamination.
The presence of an aquitard creates a confined aquifer below it.
We need to determine the hydraulic conductivity of the aquitard.
The aquitard restricts the vertical movement of groundwater.
The aquitard restricts the vertical movement of groundwater.
Look at the cross section and identify the aquitard layer.