Usage:
La Pasada Formation (NM*)
Geologic age:
Pennsylvanian, Early*
Morrowan*
Pennsylvanian, Middle*
Atokan*
Desmoinesian*
Type section, locality, area and/or origin of name:
Dalton Bluff, on west side of Pecos Valley overlooking Dalton Campground, 6.6 mi by road north of junction of State Highway 63 and Alternate U.S. Highway 84-85 at Pecos, San Miguel Co., NM. Named from Upper La Pasada (an old Spanish settlement) near foot of Dalton Bluff (Sutherland, 1963).
AAPG geologic province:
Palo Duro basin*
Estancia basin
Las Vegas-Raton 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 ([ ]).