Carlinville Limestone Member

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Lithostratigraphy: McLeansboro Group >>Modesto Formation >>Carlinville Limestone Member
Chronostratigraphy: Paleozoic Erathem >>Pennsylvanian Subsystem >>Missourian Series
Allostratigraphy: Absaroka Sequence

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)

M. E. Hopkins and J. A. Simon

Name

Original description

The Carlinville Limestone Member of the Modesto Formation (Worthen, 1873, p. 290-301).

Derivation

Named for Carlinville, Macoupin County.

Other names

History/background

Type section

Type location

The type section consists of outcrops along Macoupin Creek (SW SW 35, 10N-7W) (Wanless, 1956, p. 11).

Type author(s)

Type status

Reference section

Reference location

Reference author(s)

Reference status

Stratigraphic relationships

Extent and thickness

The limestone is recognized only in part of southwestern Illinois, where it is thick-bedded, up to 5 feet thick.

Lithology

Core(s)

Photograph(s)

Contacts

Well log characteristics

Fossils

The Carlinville contains an open-marine fauna.

Age and correlation

Environments of deposition

Economic importance

Remarks

References

WANLESS, H. R., 1956, Classification of the Pennsylvanian rocks of Illinois as of 1956: Illinois State Geological Survey Circular 217, 14 p.
WORTHEN, A. H., 1873, Geology and paleontology: Geological Survey of Illinois, v. 5, 619 p.

ISGS Codes

Stratigraphic Code Geo Unit Designation
2230
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