Cedar Point Anticline (Discarded)

Location

Putnam and southwestern La Salle Counties

References

Willman and Payne 1942

Description

Definition of this structure was based on subsurface contouring of several Cambrian and Ordovician units. As mapped by Willman and Payne (1942), the anticline strikes N65°E, perpendicular to the La Salle Anticlinorium, and terminates against the latter. No closure was mapped. Maximum structural relief was stated to be about 300 feet (90 m) and the steepest dip, about 200 feet per mile.

No indication of the Cedar Point Anticline appears on maps of the top of the Galena (Trenton) Group (Bristol and Buschbach 1973), the top of the Franconia Formation (Kolata et al. 1983), or the Colchester Coal (Pennsylvanian; Jacobson 1985). The well records used by the later mappers were more numerous and better in quality than those available to Willman and Payne. The use of the name Cedar Point Anticline should therefore be discontinued.