Usage:
Parfreys Glen Formation (WI)
Geologic age:
Cambrian
Ordovician(?)
Type section, locality, area and/or origin of name:
Type section: Parfreys Glen, SE/4 NE/4 sec. 22, T. 11 N., R. 7 E., 8 km southeast of Baraboo, Sauk Co., south-central WI. (Clayton and Attig, 1990). [Parfreys Glen is WI Department of Natural Resources Natural Area.]
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 ([ ]).