Usage:
Lake Creek Member of Pierre Shale (KS*)
Lake Creek Shale Member of Pierre Shale of Montana Group (KS)
Geologic age:
Late Cretaceous (Maastrichtian)*
Type section, locality, area and/or origin of name:
Named from Lake Creek, in northwestern part of Wallace Co., northwestern KS, along which the most extensive outcrops occur [Goodland 30- x 60-min quadrangle] (Elias, 1931).
AAPG geologic province:
Anadarko basin*
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 ([ ]).