Usage:
Pamunkey Group (MD*,VA*,DC*)
Pamunkey Formation (DE)
Subunits:
Brightseat Formation, Aquia Formation, Marlboro Clay, Nanjemoy Formation, Piney Point Formation, Chickahominy Formation (MD*,VA*,DC*).
Geologic age:
Tertiary*
Paleocene*
Eocene*
Type section, locality, area and/or origin of name:
Type area: Named from extensive exposures along Pamunkey River, VA (Darton, 1891).
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 ([ ]).