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Lithostratigraphy
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Chronostratigraphy
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Allostratigraphy
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Hydrostratigraphy
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Primary source

Willman, H. B., Elwood Atherton, T. C. Buschbach, Charles Collinson, John C. Frye, M. E. Hopkins, Jerry A. Lineback, and Jack A. Simon, 1975, Handbook of Illinois Stratigraphy: Illinois State Geological Survey Bulletin 95, 261 p.

Contributing author(s)

Elwood Atherton, Charles Collinson, and Jerry A. Lineback

Name

Original description

The Fredonia Limestone Member of the Ste. Genevieve Limestone (Ulrich and Smith, 1905, p. 24, 40; Swann, 1963, p. 27, 66).

Derivation

Named for Fredonia, Caldwell County, Kentucky (14-I-18).

Other names

History/background

Type section

Type location

Type author(s)

Type status

Reference section

Reference location

Reference author(s)

Reference status

Stratigraphic relationships

The Fredonia Limestone Member is the lowest and thickest member of the Ste. Genevieve Limestone. The Fredonia originally included the dominantly limestone section from the base of the Rosiclare Sandstone to the top of the underlying St. Louis Limestone, but it was restricted by Swann (1963) to the limestone between the base of the Spar Mountain Member and the St. Louis Limestone.

Extent and thickness

The Fredonia is generally 80-100 feet thick, but from Effingham County north to Coles County it thins rapidly to 20 feet or less.

Lithology

The limestone is light gray, mainly oolitic, cross-bedded, and crinoidal, but it includes some darker lithographic limestone beds like those in the St. Louis below.

Core(s)

Photograph(s)

Contacts

Well log characteristics

Fossils

Crinoids are present in the Fredonia Member.

Age and correlation

Environments of deposition

Economic importance

“McClosky”, “Oblong” and “lower McClosky” are informal names applied to producing zones in the Fredonia Limestone Member of the [[Ste. Genevieve Limestone]].

Remarks

Reference(s)

place a <pre><br></pre>at the end of a line to get a line return SWANN, D. H., 1963, Classification of Genevievian and Chesterian (Late Mississippian) rocks of Illinois: Illinois State Geological Survey Report of Investigations 216, 91 p.<br> ULRICH, E. O., and W. S. T. SMITH, 1905, Lead, zinc, and fluorspar deposits of western Kentucky: USGS Professional Paper 36, 218 p.

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