Usage:
Briar Hill (No. 5A) Coal Member of Carbondale Formation (IL,KY)
Geologic age:
Middle Pennsylvanian (Desmoinesian)
Type section, locality, area and/or origin of name:
Type locality: in mines at DeKoven, Shawneetown quadrangle, Union Co., western KY. Named from Briar Hill, a hill near Dekoven Station, Union Co., western KY (Glenn, 1912, Kentucky Geol. Survey Bull., no. 17, p. 38; see also Kosanke and others, 1960, Willman and others, 1975).
Reference locality: northwest of DeKoven, in T. 9 S., R. 7 E., Eldorado and Equality 15-min quadrangles, Saline Co., southeastern IL (Wanless, 1956, Illinois Geol. Survey Circ., no. 217, p. 10; see also Kosanke and others, 1960, Willman and others, 1975).
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 ([ ]).