Seville Anticline

From ILSTRUC

Part of the Peoria Folds

Location

Eastern McDonough and western Fulton Counties (E-2,3)

References

Wanless 1957

Description

This structure apparently was defined based largely on surface mapping, which shows a large inlier of the St. Louis and Salem Limestones and the Warsaw Shale beneath the pre-Pennsylvanian unconformity. Wanless suggested that the Seville Anticline feature may be, at least in part, an erosional remnant rather than a structural high.