- Usage in publication:
-
- Eagles House rhyolite*
- Modifications:
-
- Named
- Dominant lithology:
-
- Rhyolite
- Dacite
- AAPG geologic province:
-
- Great Basin province
Summary:
Named from Eagles House crags, sec.13 T18N R30E, Lahontan Mountains, Churchill Co, NV, designated as type locality. Also exposed in White Throne Mountains, Desert Mountains, and Eetza Mountain. At type consists of two flows: lower (about 200 ft thick) is pale-greenish-gray porphyritic dacite, and upper (nearly 100 ft thick) is pink porphyritic rhyolite. Rhyolite is faulted against Truckee formation, which locally lies in depositional contact on rhyolite. Unconformably overlies dacite of Rainbow Mountains. Age is considered to be late Miocene to early Pliocene based on stratigraphic relations with Truckee formation.
Source: GNU records (USGS DDS-6; Menlo GNULEX).
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 ([ ]).