U.S. Geological Survey Home AASG Logo USGS HOME CONTACT USGS SEARCH USGS
National Geologic Map Database

Geologic Unit: Servilleta

Usage:

Servilleta Basalt (CO*,NM*)
Servilleta Formation (NM)
Servilleta Member of Hinsdale Formation (NM)


Subunits:

Mesita Member (CO).


Geologic age:

late Tertiary (Pliocene)*


Type section, locality, area and/or origin of name:

Not designated. Origin of name not stated by author, but probably named from Servilleta, Taos Co., NM (Montgomery, 1953).


AAPG geologic province:

San Juan basin*
San Luis basin*


For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.

Asterisk (*) indicates usage by the U.S. Geological Survey. Other usages by state geological surveys.

"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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).