Historical:Carlinville Limestone Member

	Handbook of Illinois Stratigraphy
Series	Bulletin 95
Author	H. B. Willman, Elwood Atherton, T. C. Buschbach, Charles Collinson, John C. Frye, M. E. Hopkins, Jerry A. Lineback, Jack A. Simon
Date	1975
Link	Web page
PDF	PDF file
Store	ISGS Store

	Handbook of Illinois Stratigraphy
Series	Bulletin 95
Author	H. B. Willman, Elwood Atherton, T. C. Buschbach, Charles Collinson, John C. Frye, M. E. Hopkins, Jerry A. Lineback, Jack A. Simon
Date	1975
Link	Web page
PDF	PDF file
Store	ISGS Store

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

Authors

M. E. Hopkins and J. A. Simon

Name Origin

The Carlinville Limestone Member of the Modesto Formation (Worthen, 1873, p. 290-301) is named for Carlinville, Macoupin County.

Type Section

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

Extent and Thickness

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

Fossils

The Carlinville contains an open-marine fauna.

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	--