Usage:
Kanwaka Shale of Shawnee Group (IA*,KS*,MO*,NE*)
Kanwaka Formation of Shawnee Group (MO*)
Kanwaka Shale of Vamoosa Group (OK*)
Subunits:
(alphabetical): Clay Creek Limestone Member (IA,KS*,MO,NE), Elgin Sandstone Lentil (OK*); Jackson Park Member (KS*,NE*) or Jackson Park Shale Member (MO), Stull Member (IA,KS*,NE) or Stull Shale Member (MO).
Geologic age:
Late Pennsylvanian (Virgilian)*
Type section, locality, area and/or origin of name:
Type locality: exposures east of Stull, 9+/- mi due west of Lawrence, KS (Moore, 1936).
Named for fact it forms a large part of surface of Kanwaka Twp., Douglas Co., eastern KS (Beede, 1902; name credited to G.I. Adams).
AAPG geologic province:
Forest City basin*
Nemaha anticline*
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 ([ ]).