File:Penn carbondale 4-1.jpg: Difference between revisions

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== Licensing ==
{{Image
{{CC-by-NC-SA-4.0}}
|File name=Penn carbondale 4-1.jpg
|Caption=Figure 4-1.  Chart showing the development of the Pennsylvanian classification in the Illinois Basin. From the Tri-State Committee (2001). 
Used courtesy of the Tri-State Committee.
}}

Revision as of 20:40, 22 December 2020

Figure 4-1. Chart showing the development of the Pennsylvanian classification in the Illinois Basin. From the Tri-State Committee (2001). Used courtesy of the Tri-State Committee.

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