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National Geologic Map Database
Geologic Unit: Fera
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Map showing publication footprint
  • Usage in publication:
    • Fera limestone*
  • Modifications:
    • Named
  • Dominant lithology:
    • Dolomite
    • Limestone
  • AAPG geologic province:
    • Great Basin province
Publication:

Staatz, M.H., and Carr, W.J., 1964, Geology and mineral deposits of the Thomas and Dugway Ranges, Juab and Tooele Counties, Utah: U.S. Geological Survey Professional Paper, 415, 188 p., (incl. geologic map, scale 1:31,680)


Summary:

Named for occurrence in Fera Canyon, east side Dugway Range, Tooele Co, UT in the Great Basin province. Type section measured on ridge 1 mi south of Straight Canyon, T10S, R11W. Extends south into Juab Co. Found in Fandangle Canyon, small outcrops near Dugway Pass, and outcrops from north end Green Grass Valley to south end Fandangle Canyon. Is 401 ft thick at type where it overlies Straight Canyon formation (new) and underlies Dugway Ridge dolomite (new). May be as thin as 365 ft. Base marked by 30 ft white massive limestone. Lower three-fourths is very light gray to pink, locally mottled limestone and minor tan dolomite. Upper one-fourth is thin- to medium-bedded, fine grained, gray limestone. Is fossiliferous (alga GIRVANELLA, linguloid brachiopod). Is equivalent to Mendha limestone and Windfall formation. Of early Late Cambrian age. Geologic map. Stratigraphic section.

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


Map showing publication footprint
  • Usage in publication:
    • Fera Limestone*
  • Modifications:
    • Overview
  • AAPG geologic province:
    • Great Basin province
Publication:

Hintze, L.F., and Palmer, A.R., 1976, Upper Cambrian Orr Formation; its subdivisions and correlatives in western Utah, IN Contributions to stratigraphy: U.S. Geological Survey Bulletin, 1405-G, p. G1-G25.


Summary:

Known in Dugway Range, Tooele Co, UT in Great Basin province. Correlation with newly named members of Orr Formation in the House Range and in the Wah Wah Mountains of Millard and Beaver Cos, and with other formations in the Great Basin province of UT shown on fig. 2. Is of Late Cambrian age.

Source: GNU records (USGS DDS-6; Denver 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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).