Usage:
Kimmswick Limestone (AR*,IL*,KS*,MO*,TX*)
Kimmswick Limestone of Galena Group (IL)
Subunits:
House Springs Bentonite Bed (MO*).
Geologic age:
Late Ordovician (Mohawkian to Cincinnatian; Chatfieldian to Edenian)*
Type section, locality, area and/or origin of name:
Type section not designated, but exposures in old and open underground quarry at Glen Park, approx. 3 mi south of town of Kimmswick, in SE/4 NW/4 sec. 5, T. 41 N., R. 6 E., Jefferson Co., eastern MO, have long served collectively as a type (Thompson, 1991).
Named from exposures in vicinity of Kimmswick, [along Mississippi River, Kimmswick 15-min quadrangle], Jefferson Co., eastern MO (Ulrich, 1904).
AAPG geologic province:
Illinois basin*
Ozark uplift*
Upper Mississippi embayment*
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 ([ ]).