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Geologic Unit: Gilmore
Map showing publication footprint
  • Usage in publication:
    • Gilmore sandstone
  • Modifications:
    • Original reference
  • AAPG geologic province:
    • Appalachian basin (Eastern Overthrust area)
Publication:

Stevenson, J.J., 1876, Report of progress in the Greene and Washington district of the bituminous coal fields of western Pennsylvania: Pennsylvania Geological Survey Report of Progress, 2nd series, v. K, 419 p.


Summary:

Pg. 38-39. Gilmore sandstone. Coarse massive sandstone, greatly cross-bedded and of uneven texture. Thickness 25 to 40 feet. Lies beneath Windy Gap coal, in upper part of Green County group [Greene formation]. Occurs on crests of higher hills in Springhill, Gilmore, Aleppo, and Jackson Townships, Greene County, southwestern Pennsylvanian. [Age is Permian.]

Source: US geologic names lexicon (USGS Bull. 896, p. 820).


Map showing publication footprint
  • Usage in publication:
    • Gilmore sandstone*
  • Modifications:
    • Revised
  • AAPG geologic province:
    • Appalachian basin (Eastern Overthrust area)
Publication:

White, I.C., 1891, Stratigraphy of the bituminous coal field of Pennsylvania, Ohio, and West Virginia: U.S. Geological Survey Bulletin, 65, 212 p.


Summary:

Pg. 22. Gilmore sandstone. Massive sandstone, 40 feet thick. Belongs in upper part of Dunkard Creek series [Dunkard group]. [Age is Permian.]

Source: US geologic names lexicon (USGS Bull. 896, p. 820).


Map showing publication footprint
  • Usage in publication:
    • Gilmore sandstone member*
  • Modifications:
    • Adopted
  • AAPG geologic province:
    • Appalachian basin (Eastern Overthrust area)
Publication:

Wilmarth, M.G., 1925, [Selected Geologic Names Committee remarks (ca. 1925) on Carboniferous and Permian rocks of the Appalachians], IN Wilmarth, M.G., 1938, Lexicon of geologic names of the United States (including Alaska): U.S. Geological Survey Bulletin, 896, pts. 1-2, 2396 p.


Summary:

Gilmore sandstone member of Greene formation. Recognized in southwestern Pennsylvanian (Greene and Washington Counties), northern West Virginia, and eastern Ohio. Age is Permian.

Source: US geologic names lexicon (USGS Bull. 896, p. 820).


Map showing publication footprint
  • Usage in publication:
    • Gilmore sandstone
  • Modifications:
    • Areal extent
  • AAPG geologic province:
    • Appalachian basin (Eastern Overthrust area)
Publication:

Arkle, Thomas, Jr., 1959, Monongahela series, Pennsylvania System, and Washington and Greene series, Permian System, of the Appalachian basin; Field trip no. 3: Geological Society of America Field Trip Guidebook, 72nd annual meeting, Pittsburgh, PA, 1959, p. 115-138.


Summary:

Pg. 118 (table 1). Gilmore sandstone. Table of classification and nomenclature lists Gilmore sandstone in Greene series above Gilmore coal and below Windy Gap coal. [Age is Permian.]

Source: US geologic names lexicon (USGS Bull. 1200, p. 1511).


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 ([ ]).

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