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National Geologic Map Database

Geologic Unit: Sangre de Cristo

Usage:

Sangre de Cristo Formation (CO*,NM*)


Subunits:

Crestone Conglomerate Member (CO*).


Geologic age:

Middle Pennsylvanian (probably
Desmoinesian) to Early Permian (Wolfcampian)*


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

Most characteristic development and greatest thickness is in central part of Sangre de Cristo Range, near village of Crestone, [Saguache Co.], central southern CO (Melton, 1925).
[Type area]: area east of Crestone townsite, on west flank of central anticline between Crestone Needle on south and Eureka Mountain on north, Saguache Co., central southern CO (Bolyard, 1959).
Principal reference section (=principal reference section of Crestone Conglomerate Member): northeast of Crestone in Groundhog Basin, [in NW/4 sec. 15, T. 44 N., R. 12 E., Lat. 38 deg. 03 min. 55 sec. N., Long. 105 deg. 39 min. 07 sec. W., Rito Alto Peak 7.5-min quadrangle], Saguache Co., southern central CO (Lindsey and Schaefer, 1984; see also Lindsey and others, 1985).


AAPG geologic province:

Las Vegas-Raton basin*
San Luis basin*
Palo Duro 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 ([ ]).