Usage:
Sandia Formation (CO,NM*)
Geologic age:
Pennsylvanian, Early*
Morrowan*
Pennsylvanian, Middle*
Atokan*
Desmoinesian*
Type section, locality, area and/or origin of name:
Present in Sandia, Manzano, and San Andreas Mountains, central northern NM (Herrick, 1900).
Principal reference section (composite, sections J1-J7): across hogback ridges; base of composite section (J1) beginning about 0.95 mi north of Mora River and 2.7 mi east of center of town of Mora [approx. Lat. 35 deg. 58 min. 35 sec. N., Long. 105 deg. 17 min. 00 sec. W., Mora Co., central northern NM] (Baltz and Myers, 1999).
AAPG geologic province:
San Juan basin*
Las Vegas-Raton basin*
Orogrande basin*
Estancia basin
Palo Duro 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 ([ ]).