New Glarus Member
Lithostratigraphy: Ottawa Limestone Megagroup >>Platteville Group >>Pecatonica Formation >>New Glarus 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 New Glarus Member of the Pecatonica Formation (Templeton and Willman, 1963, p. 77).
Derivation
Named for New Glarus, Green County, Wisconsin.
Other names
History/background
Type section
Type location
The type section of the New Glarus Member of the Pecatonica Formation located in the same section as the Dane Member (above the Dane Member) in a quarry and roadcut in Dane County, 4 miles north of New Glarus, Green County (SW NW NE 34, 5N-7E). The New Glarus is 5.7 feet thick at the type section.
Type author(s)
Type status
Reference section
Reference location
Reference author(s)
Reference status
Stratigraphic relationships
Extent and thickness
The New Glarus Member is generally about 5 feet thick in the northern outcrop area and thickens to 25 feet in extreme southern Illinois.
Lithology
The New Glarus Member is dolomite in northern Illinois and limestone in southern Illinois and is relatively pure, thick bedded, and locally cherty.
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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