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National Geologic Map Database

Geologic Unit: Romney

Usage:

Romney Shale (MD*,PA,VA*,WV*)
Romney Formation (MD)


Subunits:

Hamilton, Marcellus, Needmore Shale Members (MD); Millboro Member (VA).


Geologic age:

Devonian, Middle*
Devonian, Late*


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

Exposures at Romney, Hampshire Co., east-central WV (Darton, 1892).


AAPG geologic province:

Appalachian basin*


For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.

Asterisk (*) indicates usage by the U.S. Geological Survey. Other usages by state geological surveys.

"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 ([ ]).