- Usage in publication:
-
- Oak Hall member
- Modifications:
-
- Named
- Dominant lithology:
-
- Limestone
- Metabentonite
- AAPG geologic province:
-
- Appalachian basin
Summary:
Named the Oak Hall member of the Nealmont limestone for Oak Hall, Centre Co., central PA. Unit is basal member of formation. Consists of heavy ledged limestone, with metabentonites at 18 feet from top and at top of member. Thickness is 60 feet. Overlies the Valentine member of the Curtin formation and underlies the Centre Hall member of the Nealmont. The Oak Hall is of Middle Ordovician age.
Source: GNU records (USGS DDS-6; Reston GNULEX).
- Usage in publication:
-
- Oak Hall Member
- Modifications:
-
- Revised
- AAPG geologic province:
-
- Appalachian basin
Summary:
The Oak Hall is included as a member of the Linden Hall Formation in central Pennsylvania.
Source: GNU records (USGS DDS-6; Reston GNULEX).
- Usage in publication:
-
- Oak Hall Member
- Modifications:
-
- Revised
- AAPG geologic province:
-
- Appalachian basin
Summary:
The Oak Hall is included as upper member of Benner Formation in central PA. Overlies the Stover Member of the Benner and underlies the Nealmont Formation.
Source: GNU records (USGS DDS-6; Reston GNULEX).
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 ([ ]).