- Usage in publication:
-
- Peralta Tuff Member*
- Modifications:
-
- Principal reference
- Dominant lithology:
-
- Tuff
- AAPG geologic province:
-
- San Juan basin
Summary:
P8. Peralta Tuff Member of Bearhead Rhyolite of Keres Group. Consists predominantly of bedded air-fall tuffs but includes probable hot-avalanche deposits, as well as reworked tuffs that are interbedded with and grade laterally into volcanic gravels of the Cochiti Formation. [Age is middle Pliocene.]
Named from typical exposures in Peralta Canyon near its junction with Colle Canyon [in area of Canada de Cochiti Grant-Santa Fe National Forest bdry., Santo Domingo Pueblo 15-min quadrangle, Sandoval Co., north-central NM].
Source: Publication.
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 ([ ]).