The lower Pennsylvanian unconformity in the central Appalachian basin
Other Authors: | , |
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Format: | Map |
Language: | English |
Published: |
[Reston, Va.] :
U.S. Geological Survey,
1999
|
Subjects: |
Other Authors: | , |
---|---|
Format: | Map |
Language: | English |
Published: |
[Reston, Va.] :
U.S. Geological Survey,
1999
|
Subjects: |