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  • Usage in publication:
    • Oak Hall member
  • Modifications:
    • Named
  • Dominant lithology:
    • Limestone
    • Metabentonite
  • AAPG geologic province:
    • Appalachian basin
Publication:

Kay, G.M., 1944, Middle Ordovician of central Pennsylvania: Journal of Geology, v. 52, no. 1, p. 97-116.


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).


Map showing publication footprint
  • Usage in publication:
    • Oak Hall Member
  • Modifications:
    • Revised
  • AAPG geologic province:
    • Appalachian basin
Publication:

Map showing publication footprint
  • Usage in publication:
    • Oak Hall Member
  • Modifications:
    • Revised
  • AAPG geologic province:
    • Appalachian basin
Publication:

Berg, T.M. (compiler), 1980, Geologic map of Pennsylvania: Pennsylvania Geological Survey State Map, 4th series, 1, scale 1:250,000


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).


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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 ( ).

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