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National Geologic Map Database

Geologic Unit: Laurel

Usage:

Laurel Formation (MD*,DC*)


Geologic age:

Early Cambrian*


Type section, locality, area and/or origin of name:

Type area: vicinity of Laurel, Prince Georges Co., MD, about 17 mi southwest of Baltimore (Cloos and Broedel, 1940).


AAPG geologic province:

Piedmont-Blue Ridge province*


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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).