Usage:
Rowland Member of Drakes Formation (KY*,IN*)
Subunits:
Marble Hill Bed (IN*,KY*).
Geologic age:
Late Ordovician (Cincinnatian; Richmondian)*
Type section, locality, area and/or origin of name:
Type section: roadcuts along U.S. Highway 27 on outskirts of Stanford about 1.2 mi west of Rowland, Lincoln Co., KY (Weir and others, 1965).
AAPG geologic province:
Cincinnati arch*
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 ([ ]).