- Usage in publication:
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- Paliza Canyon Formation*
- Modifications:
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- Original reference
- Geochronologic dating
- Dominant lithology:
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- Volcanics
- AAPG geologic province:
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- San Juan basin
Summary:
Pg. P6-P8. Paliza Canyon Formation of Keres Group. Basaltic, andesitic, and dacitic flows, tuffs, and breccias. Maximum thickness 3,000 feet. Overlies Abo Formation or Canovas Canyon Rhyolite (Keres Group); unconformably underlies Bearhead Rhyolite (Keres Group). Age is early to middle Pliocene; 3 dacitic rocks from formation dated by K-Ar method yielded ages of 8.5, 8.8, and 9.1 Ma (G.B. Dalrymple, written commun., 1967).
Because of numerous coalesced composite volcanoes and lenticular nature of rocks, type section not designated. Best exposures in upper Cochiti Canyon and on east side of St. Peter's Dome in Frijoles quadrangle. Named from exposures in Paliza Canyon, Jemez Mountains, in southeastern part of Jemez Springs quadrangle, Sandoval Co., north-central NM. (Pronounced pal-ce'-sah.)
Source: Publication; US geologic names lexicon (USGS Bull. 1520, p. 231-232).
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 ([ ]).