Usage:
St. Leonard 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: Cliffs on Chesapeake Bay at Matoaka Cottages, 0.3 mi north of Calvert Beach and 1.25 mi east of St. Leonard, Cove Point 7.5-min quadrangle, Calvert 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 ([ ]).