Usage:
Monotony Tuff (NV*)
Geologic age:
Tertiary
Oligocene, late*
Type section, locality, area and/or origin of name:
Northeastern flank of Monotony Valley, 4 km south-southeast of Oswald Mine, in secs. 2 and 3, T. 3 S., R. 53 E., Nye Co., NV (Ekren and others, 1971).
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 ([ ]).