Usage:
Silver Lake Member of Scranton Shale of Wabaunsee Group (IA*,KS*,MO*,NE*,OK*)
Silver Lake Shale Member of Scranton Formation of Wabaunsee Group (IA*,MO*)
Silver Lake Member of Scranton Shale of Ada Group (OK)
Silver Lake Shale Member of Scranton Shale of /Sacfox subgroup [informal] of Wabaunsee Group (KS)
Silver Lake Shale Member of Scranton Formation of /Sacfox subgroup [informal] of Wabaunsee Group (MO)
["Subgroup" not recognized as a formal stratigraphic rank term (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). Sacfox subgroup considered informal and should not be capitalized.]
Geologic age:
Late Pennsylvanian (Virgilian)*
Type section, locality, area and/or origin of name:
Northeast of Silver Lake, Shawnee Co., eastern KS (Beede, 1898; Moore, 1936).
AAPG geologic province:
Chautauqua platform*
Forest City 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 ([ ]).