Usage:
Blackjack Creek Limestone Member of Fort Scott Limestone of Marmaton Group (KS,OK)
Blackjack Creek Limestone Member of Mouse Creek Formation of Marmaton Group (IA)
Blackjack Creek Limestone of /Fort Scott subgroup [informal] of Marmaton Group (MO)
["Subgroup" not recognized as a formal stratigraphic rank term (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). Fort Scott subgroup considered informal and should not be capitalized.]
Geologic age:
Middle Pennsylvanian (Desmoinesian)
Type section, locality, area and/or origin of name:
Type locality: outcrops in Johnson Co., MO, 4 mi southeast of Fayetteville, along Blackjack Creek (Cline, 1941).
AAPG geologic province:
Forest City basin
Cherokee basin
Iowa shelf
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 ([ ]).