Usage:
Drum Mountains Rhyodacite (UT*)
Geologic age:
Tertiary*
Eocene, late*
Type section, locality, area and/or origin of name:
In secs. 32 through 34, T. 14 S., R. 11 W. Named from Drum Mountains, Juab Co., UT (Lindsey, 1979).
AAPG geologic province:
Great Basin province*
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 ([ ]).