Usage:
Dane Member of Pecatonica Formation of Platteville Group (IL)
(†Dane not used by the WI Geol. Survey; type locality in WI. Rocks incl. in unnamed upper part of Glenwood Formation. See Glenwood.)
Geologic age:
Late Ordovician (Mohawkian; Turinian)
Type section, locality, area and/or origin of name:
Type section (=New Glarus type section): quarry and roadcut 4 mi north of New Glarus (in northern Green Co.), in SW/4 NW/4 NE/4 sec. 34, T. 5 N., R. 7 E., [approx. Lat. 42 deg. 52 min. 06 sec. N., Long. 89 deg. 39 min. 09 sec. W., New Glarus 7.5-min quadrangle], southern Dane Co., southern WI (Templeton and Willman, 1963, Illinois Geol. Survey Bull., no. 89, p. 76; Willman and Buschbach, 1975, Illinois Geol. Survey Bull., no. 95, p. 47-87).
Named from Dane Co., southern WI (Templeton and Willman, 1963, p. 76; Willman and Buschbach, 1975).
Notable exposures in Dixon-Oregon area, northern IL (Templeton and Willman, 1952).
AAPG geologic province:
Wisconsin arch
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
Asterisk (*) indicates published by U.S. Geological Survey authors.
"No current usage" (†) implies that a name has been abandoned or has fallen into disuse. Former usage and, if known, replacement name given in parentheses ( ).
Slash (/) indicates name conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).