- Usage in publication:
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- Picuda Peak Member
- Modifications:
-
- Original reference
- Dominant lithology:
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- Conglomerate
- Sandstone
- AAPG geologic province:
-
- San Juan basin
Summary:
Pg. 15 (fig. 2), 20, 21 (fig. 6), 22, App. A. Picuda Peak Member of Arroyo Ojito Formation of Santa Fe Group. Pinkish-gray to light-brown and reddish-yellow sandy conglomerate and cobbly to bouldery sandstone interbedded with yellowish-red sandstone and reddish-yellow to brownish-yellow muddy sandstone. Thickness 50 m. Conformably overlies Loma Barbon Member of Arroyo Ojito Formation. Separated from overlying Ceja Formation by unconformity called Rincones paleosurface (informal; new). Age is late Miocene (Hemphillian NALMA).
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 ([ ]).