Usage:
Davis coal bed [informal] of Carbondale Formation (IL*,KY*)
/Davis Coal Member of Carbondale Formation (IL)
For informal usage, the rank or lithologic term should not be capitalized. [Preoccupied. Name previously applied to Cambrian Davis Formation by Buehler (1907) in IL, IN, KS, MN, MO, OK.]
Geologic age:
Middle Pennsylvanian (Desmoinesian)*
Type section, locality, area and/or origin of name:
Type locality: Davis Mine, 0.5 mi east of DeKoven Station [now Dekoven], Shawneetown 15-min quadrangle, Union Co., KY (Kosanke and others, 1960).
AAPG geologic province:
Illinois 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 ([ ]).