Petersburg Basin (Discarded)

Location

West-central Illinois

References

Workman and Gillette 1956, Cluff et al. 1981

Description

Workman and Gillette (1956) applied the name Petersburg Basin to a broad area where the "Kinderhookian Series" becomes relatively thick. An area of thin sediments to the southeast was termed the Vandalia Arch and another thin area to the west was named Schuyler Arch. (Workman and Gillette included the entire New Albany Group in the Kinderhookian Series. The New Albany is now recognized as largely of Late Devonian age.)

Cluff et al. (1981) in their study of the New Albany recognized the same general thickness pattern mapped by Workman and Gillette. Cluff et al. (1981) substituted western depocenter for Petersburg Basin and central thin for Vandalia Arch. They observed that naming arches and basins is inappropriate without evidence that actual tectonic or topographic features existed.

See also SCHUYLER ARCH (discarded) and VANDALIA ARCH (discarded).