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National Geologic Map Database
Geologic Unit: Bowman
Map showing publication footprint
  • Usage in publication:
    • Bowman limestone*
  • Modifications:
    • Original reference
    • Biostratigraphic dating
  • Dominant lithology:
    • Limestone
  • AAPG geologic province:
    • Great Basin province
Publication:

Gilluly, James, 1932, Geology and ore deposits of the Stockton and Fairfield quadrangles, Utah: U.S. Geological Survey Professional Paper, 173, 171 p.


Summary:

Bowman limestone. Mottled shaly limestones, intraformational conglomerate, and oolitic limestone, with shaly member, about 35 feet thick, at base. Thickness 280 feet. Grades into overlying Lynch dolomite, the boundary being arbitrarily drawn at base of lowest dolomite bed. Conformably overlies Hartmann limestone. Age is Middle Cambrian.
Named from exposures in Bowman Gulch, northwest of Ophir, [in NW/4 sec. 23, T. 5 S., R. 4 W., Ophir 7.5-min quadrangle], Tooele Co., Oquirrh Mountains region, central northern UT.

Source: US geologic names lexicon (USGS Bull. 896, p. 244).


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 ([ ]).