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This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: translated. The original can be viewed here: Aquifer.svg: . Modifications made by
Sebastian Wallroth.
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Captions
An aquifer cross-section. This diagram shows two aquifers with one aquitard (a confining or impermeable layer) between them, surrounded by the bedrock aquiclude, which is in contact with a gaining stream (typical in humid regions).