Vandalia Arch (Discarded)

Location

South-central Illinois

References

Workman and Gillette 1956, North 1969, Cluff et al. 1981

Description

The Vandalia Arch represents a northeast-trending saddle or divide between two depositional basins that existed in the Late Devonian and Kinderhookian Epochs. It separated a southern depocenter near Hardin County and a shallower broader western depocenter in west-central Illinois. Cluff et al. (1981) rejected the term Vandalia Arch and substituted the informal name "central thin" because of a lack of evidence that showed this was a real tectonic feature.

See also PETERSBURG BASIN(discarded) and SCHUYLER ARCH(discarded).