Pennsylvania aquifers
![Map showing Pennsylvanian aquifers](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/ext_penn.gif?itok=7EWwm9fq)
Detailed Description
Pennsylvanian aquifers consist mostly of sandstone and limestone that are parts of repeating sequences of beds deposited during multiple sedimentary cycles.
Sources/Usage
Public Domain.
Pennsylvanian aquifers consist mostly of sandstone and limestone that are parts of repeating sequences of beds deposited during multiple sedimentary cycles.
Public Domain.