GROUND WATER ATLAS of the UNITED STATES
Iowa, Michigan, Minnesota, Wisconsin
HA 730-J

Pennsylvanian aquifer


There are two different files for each illustration

A 90 ppi JPEG file, suitable for screen viewing is accessed through the thumbnail image.

A tiff file is accessed through the "tiff file" link. All files are Adobe Photoshop. These files have been compressed with GNU's gzip utility. If your web browser defaults to a screen display of the file, turn on the "Load to local disk" option before downloading. Download and process these tiff files as ascii, not binary.


Hydrogeology


Figure 51 Correlation chart showing Pennsylvanian aquifer characteristics (126K)
downloadable tiff file J051.tif.gz (887K compressed)


Figure 52 Map showing thickness of the Jurassic red beds (175K)
downloadable tiff file J052.tif.gz (1.6MB compressed)

Figure 53 Map showing thickness of the Pennsylvanian aquifer (193K)
downloadable tiff file J053.tif.gz (1.8MB compressed)

Figure 54 Map showing water movement in the Pennsylvanian aquifer (178K)
downloadable tiff file J054.tif.gz (1.5MB compressed)

Figure 55 Map showing potential yield of water to wells in a three county area (215K)
downloadable tiff file J055.tif.gz (2.1MB compressed)


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