Title: Paleogeologic map of the sub-Pennsylvanian Chesterian (upper Mississippian) surface in the Illinois basin
First published: 1971
Subjects: Geology, Geology, Stratigraphic, Stratigraphic Geology
Places: Illinois
Time periods: Mississippian
LC classification: QE105 .A45 no. 458, QE672 .A45 no. 458