Image:Schematic aquifer xsection usgs cir1186.png
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A diagram showing the relation between confined and unconfined aquifers; from USGS circular 1186.
The regions in the figure correspond to:
- light blue zones are aquifers,
- darker blue hatched zone is an aquitard,
- light brown (tan) section is the vadose zone (unsaturated zone), and
- dark brown area is "impermeable" bedrock (an aquiclude).
This image is a work of a United States Geological Survey employee, taken or made during the course of the person's official duties. As a work of the United States Government, the image is in the public domain. For more information, see the USGS copyright policy.
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- (del) (cur) 16:48, 4 May 2005 . . KrisK (Talk | contribs) . . 400×431 (52,372 bytes) (a diagram showing the relation between confined and unconfined aqufiers.)
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