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National Geologic Map Database

Geologic Unit: Trego Hot Springs

Usage:

Trego Hot Springs Bed of Pyramid Lake Member of Mount Mazama Formation (CA,NV)
Trego Hot Springs Tephra (OR?)


Geologic age:

Quaternary
Pleistocene


Type section, locality, area and/or origin of name:

Type section: Trego Hot Springs, south of the Western Pacific RR, 200 m west of the intersection of NV Highway 49 and a dirt track on Black Rock Desert, 18 km east of Gerlach, in sec. 3, T. 33 N., R. 25 E., Pershing Co., NV (Davis, 1978).


AAPG geologic province:

Great Basin province


For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.

Asterisk (*) indicates usage by the U.S. Geological Survey. Other usages by state geological surveys.

"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 ([ ]).