Hazel Green Member
Lithostratigraphy: Ottawa Limestone Megagroup >>Platteville Group >>Plattin Subgroup >>Quimbys Mill Formation >>Hazel Green Member
Chronostratigraphy: Paleozoic Erathem >>Ordovician System >>Champlainian Series >>Blackriveran Stage
Allostratigraphy: Tippecanoe 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)
H. B. Willman and T. C. Buschbach
Name
Original description
The Hazel Green Member of the Quimbys Mill Formation (Ternpleton and Willman, 1963, p. 91).
Derivation
Named for Hazel Green, Grant County, Wisconsin, 6 miles southwest of the type section.
Other names
History/background
Type section
Type location
The type section of the Hazel Green Member is part of the Quimbys Mill type section (a small quarry near Etna, Lafayette County, Wisconsin (SE SE 11, 1N-1E)) where it is 1.7 feet thick.
Type author(s)
Type status
Reference section
Reference location
Reference author(s)
Reference status
Stratigraphic relationships
The Hazel Green Member is the basal member of the Quimbys Mill Formation.
Extent and thickness
The Hazel Green Member is as much as 2.5 feet thick in the northern outcrop area in Illinois and 10 feet in the southern outcrop area at Cape Girardeau, Missouri.
Lithology
The Hazel Green Member consists of lithographic limestone or fine-grained dolomite, mainly pure and thick bedded. It has a smooth, light buff to white, weathered surface. A bentonite at the base near Cape Girardeau extends as far north as Lincoln County, Missouri.
Core(s)
Photograph(s)
Contacts
Well log characteristics
Fossils
Age and correlation
Environments of deposition
Economic importance
Remarks
References
TEMPLETON, J. S., and H. B. WILLMAN, 1963, Champlainian Series (Middle Ordovician) in Illinois: Illinois State Geological Survey Bulletin 89, 260 p.
ISGS Codes
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