Usage:
Ajax Dolomite (UT*-notable exposures in Tintic district)
Subunits:
Emerald Dolomite Member (UT*).
Geologic age:
Late Cambrian (Millardan; Sunwaptan)*; locally Late Cambrian to Early Ordovician*
Type section, locality, area and/or origin of name:
Named from Ajax Mine, [Lat. 39 deg. 55 min. 38 sec. N., Long. 112 deg. 06 min. 46 sec. W., Eureka 7.5-min quadrangle, Juab Co.], 0.25 mi east of Mammoth, Tintic district, central northern UT (Loughlin, IN Lindgren and Loughlin, 1919).
AAPG geologic province:
Great Basin province*
South Western Overthrust*
Wasatch uplift*
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 ([ ]).