Usage:
Rio Puerco Member of Ceja Formation of Santa Fe Group (NM)
Geologic age:
Quaternary (Pleistocene)
Type section, locality, area and/or origin of name:
Type section (Ceja Formation): El Rincon section, base of section UTM Zone 13s, NAD83, 327,394 m E.; 3,882,052 m N., top of section 329,425 m E.; 3,884,250 m N., La Mesita Negra and La Mesita Negra SE 7.5-min quadrangles, Bernalillo Co., north-central NM. Named from Rio Puerco, a major tributary to the Rio Grande (Connell, 2008).
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AAPG geologic province:
Estancia basin
San Juan basin
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 ([ ]).