U.S. Geological Survey Home AASG Logo USGS HOME CONTACT USGS SEARCH USGS
National Geologic Map Database

Geologic Unit: Needmore

Usage:

Needmore Shale (MD*,PA*,VA*,WV*)
Needmore Shale of Onondaga Group (PA)
Needmore Shale Member of Romney Formation (MD)


Subunits:

(alphabetical): Beaver Dam Shale Member (MD,PA,VA,WV), Selinsgrove Limestone Member (PA).


Geologic age:

early Middle Devonian (Eifelian)*


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

Named from exposures in southern Fulton Co., PA, between Needmore and Warfordsburg (Bradford, 1939).


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 ([ ]).