Usage:
Drumcliff Member of Choptank Formation of Chesapeake Group (MD*,VA*)
Geologic age:
Tertiary*
Miocene, middle*
Type section, locality, area and/or origin of name:
Type section: Drumcliff on southwest shore of Patuxent River between Cole Creek and St. Thomas Creek, St. Marys Co., MD (Gernant, 1970).
AAPG geologic province:
Atlantic Coast 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 ([ ]).