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Map showing publication footprint
  • Usage in publication:
    • Johnstown cement limestone
  • Modifications:
    • Named
  • Dominant lithology:
    • Limestone
  • AAPG geologic province:
    • Appalachian basin
Publication:

Chance, H.M., 1880, The geology of Clarion County, [Pennsylvania]: Pennsylvania Geological Survey Report of Progress, 2nd series, v. V2, 232 p.


Summary:

Johnstown cement limestone of Allegheny formation is separated from overlying Kittanning Upper coal by 0 to 4 ft of fire clay and shale and from underlying Kittanning Middle coal by 40 to 50 ft of shaly beds.

Source: GNU records (USGS DDS-6; Reston GNULEX).


Map showing publication footprint
  • Usage in publication:
    • Johnstown limestone
  • Modifications:
    • Revised
  • AAPG geologic province:
    • Appalachian basin
Publication:

Hickok, W.O., IV, and Moyer, F.T., 1940, Geology and mineral resources of Fayette County, Pennsylvania: Pennsylvania Geological Survey County Report, 4th series, no. 26, 530 p.


Summary:

Johnstown included in Kittanning subdivision of Allegheny group. Thickness as much as 10 ft. Separated from overlying Freeport sandstone by Upper Kittanning coal; overlies Upper Westernport sandstone.

Source: GNU records (USGS DDS-6; Reston GNULEX).


Map showing publication footprint
  • Usage in publication:
    • Johnstown limestone
  • Modifications:
    • Overview
  • AAPG geologic province:
    • Appalachian basin
Publication:

Rice, C.L., Hiett, J.K., and Koozmin, E.D., 1994, Glossary of Pennsylvanian stratigraphic names, central Appalachian basin, IN Rice, C.L., ed., Elements of Pennsylvanian stratigraphy, central Appalachian basin: Geological Society of America Special Paper, 294, p. 115-155.


Summary:

Johnstown is unranked nonmarine limestone within Allegheny Formation between Upper and Middle Kittanning coals or within Kittanning Formation as described by Flint (1965).

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 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 ( ).

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