Usage:
Lockatong Formation of Newark Supergroup (NJ*,PA*,NY)
Subunits:
(McLaughlin, 1944): First thin red, first big red, triple red, black shale A1, Smiths Corner red, black shale A2, double red, black shale B members; (Olsen, 1984): Hoboken, Weehawken, Gwynedd I, Gwynedd II, Byram, Skunk Hollow, and members of McLaughlin (1944)
Geologic age:
Triassic, Late*
Carnian, late
Type section, locality, area and/or origin of name:
Exposures along Lockatong Creek, a tributary of the Delaware River, Hunterdon Co., NJ (Kummel, 1897).
Composite section: along both sides of the Delaware River, from Lumberville and Raven Rock to Point Pleasant, Bucks Co., PA, and Hunterdon Co., NJ (McLaughlin, 1945).
AAPG geologic province:
Piedmont-Blue Ridge province*
Newark 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 ([ ]).