Breezy Hill Limestone Member
Lithostratigraphy: Kewanee Group >>Carbondale Formation >>Breezy Hill 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 Breezy Hill Limestone Member of the Carbondale Formation (Pierce and Courtier, 1937, p. 17).
Derivation
Named for Breezy Hill, Crawford County, Kansas.
Other names
History/background
Type section
Type location
The type section is exposed at Breezy Hill.
Type author(s)
Type status
Reference section
Reference location
Reference author(s)
Reference status
Stratigraphic relationships
The Breezy Hill Limestone occurs in the lower part of the underclay of the Summum (No. 4) Coal in western and northern Illinois (Inden, 1968; Nance, 1970). In Missouri it occurs at the base of the underclay of the Mulky coal (Inden, 1968; Nance, 1970).
Extent and thickness
The member is widespread, though sporadic. It occurs either as an irregular, silty limestone, rarely over 1 foot thick, or as nodular masses in claystone.
Lithology
Core(s)
Photograph(s)
Contacts
Well log characteristics
Fossils
The only fossils found in it in western Illinois are micritic patches and filaments, probably algal.
Age and correlation
Environments of deposition
This limestone is interpreted as fresh-water in Illinois and open-marine to the west in Kansas and Oklahoma, where it is several feet thick and contains a varied marine fauna.
Economic importance
Remarks
References
INDEN, RICHARD, 1968, Petrographic analysis and environmental interpretation of the Breezy Hill Limestone in Illinois, Missouri, Kansas, and Oklahoma: University of Illinois thesis.
NANCE, R. B., 1970, Limestones and phosphatic rocks from the Summum and Liverpool cyclothems in western Illinois: Illinois State Geological Survey Guidebook Series 8, p. 75-83.
PIERCE, W. G., and W. H. COURTIER, 1937, Geology and coal resources of the southeastern Kansas coal field: Kansas Geological Survey Bulletin 24, 122 p.
ISGS Codes
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