Usage:
Kalo Formation of Cherokee Group (IA)
Subunits:
(alphabetical) --all in IA: Blackoak Coal Member, Cliffland Coal Member.
Geologic age:
Middle Pennsylvanian (Atokan to Desmoinesian)
Type section, locality, area and/or origin of name:
Type section: in SE/4, NW/4, SW/4 sec. 17, T. 88 N., R. 28 W., Webster Co., IA (Ravn and others, 1984).
AAPG geologic province:
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 ([ ]).