U.S. Geological Survey Home AASG Logo USGS HOME CONTACT USGS SEARCH USGS
National Geologic Map Database
Map showing publication footprint
  • Usage in publication:
    • Ore Hill limestone member*
  • Modifications:
    • Named
  • Dominant lithology:
    • Limestone
  • AAPG geologic province:
    • Appalachian basin
Publication:

Butts, Charles, 1918, Geologic section of Blair and Huntingdon Counties, central Pennsylvania: American Journal of Science, 4th series, v. 46, p. 523-537.


Summary:

Named for mining town of Ore Hill, south of Roaring Spring, Blair County, Pennsylvania. Type section is in a quarry a mile south of Ore Hill. Consists of thin-bedded, blue limestone. Contains trilobites. Is considered a member within the middle part of Gatesburg formation. Age is Ozarkian (Cambrian or Ordovician). Publication contains stratigraphic column.

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


Map showing publication footprint
  • Usage in publication:
    • Ore Hill limestone member
  • Modifications:
    • Revised
  • Dominant lithology:
    • Limestone
    • Dolomite
Publication:

Wilson, J.L., 1952, Upper Cambrian stratigraphy in the central Appalachians: Geological Society of America Bulletin, v. 63, no. 3, p. 275-322.


Summary:

Redefined to include nonarenaceous dark crystalline dolomite of Gatesburg found at stratigraphic position of Butts' Ore Hill limestone from Williamsburg, PA, northward through Tyrone and Bellefonte quadrangles. Thickness 130-213 feet. Separated from overlying Mines dolomite member by interval, 650 to 700 feet thick, referred to as upper sandy Gatesburg member, and from underlying Stacy dolomite member by 400-foot interval referred to as lower sandy Gatesburg member.

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


Map showing publication footprint
  • Usage in publication:
    • Ore Hill Limestone Member*
  • Modifications:
    • Areal extent
  • AAPG geologic province:
    • Appalachian basin
Publication:

Ryder, R.T., 1992, Stratigraphic framework of Cambrian and Ordovician rocks in the central Appalachian basin from Richland County, Ohio, to Rockingham County, Virginia: U.S. Geological Survey Miscellaneous Investigations Series Map, I-2264.


Summary:

In cross section D-D', Gatesburg Formation in subsurface of northeastern WV includes lower sandy member, middle dolomite member, Ore Hill Limestone Member, upper sandy member, and Mines Dolomite Member. On the basis of lithologic similarity, Gatesburg and its lower sandy member, Ore Hill Limestone Member, upper sandy member, and Mines Dolomite Member are extended into the subsurface of adjoining northern VA.

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


Search archives

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 ([ ]).