Curlew Limestone Member
Lithostratigraphy: Kewanee Group >>Spoon Formation >>Curlew Limestone Member
Chronostratigraphy: Paleozoic Erathem >>Pennsylvanian Subsystem >>Desmoinesian 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 Curlew Limestone Member of the Spoon Formation (Owen, 1856, No. 1 vertical section).
Derivation
Named for Curlew, Union County, Kentucky.
Other names
History/background
Type section
Type location
The type locality is an exposure on Indian Hill, Curlew, Kentucky (Glenn, 1912, p. 24).
Type author(s)
Type status
Reference section
Reference location
Reference author(s)
Reference status
Stratigraphic relationships
Extent and thickness
It is widespread, though sporadic, in southern Illinois and western Kentucky, and is seldom more than 4 feet thick.
Lithology
The Curlew is a gray, fine-grained, locally cherty limestone.
Core(s)
Photograph(s)
Contacts
Well log characteristics
Fossils
It contains an abundant open-marine fauna.
Age and correlation
The Curlew is correlated with the Seville Limestone.
Environments of deposition
Economic importance
Remarks
References
GLENN, L. C., 1912, A geological reconnaissance of the Tradewater River region, with special reference to the coal beds: Kentucky Geological Survey Bulletin 17, 75 p.
OWEN, D. D., 1856, Report of the geological survey in Kentucky made during the years 1854 and 1855: Kentucky Geological Survey Bulletin, v. I, Series 1, 416 p.
ISGS Codes
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