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National Geologic Map Database

Geologic Unit: Carlile

Usage:

Carlile Shale of Colorado Group (CO*,IA*,KS*,MN*,MT*,NE*,NM*,ND*,OK*,SD*,WY*)
Carlile Shale of Benton Group (CO*,SD)
Carlile Shale (CO*)
Carlile Formation (NM*,ND)
Carlile Member of Cody Shale (MT*,WY*)
Carlile Member of Colorado Shale (MT*,NM*)
Carlile Member of Mancos Shale (NM*)


Subunits:

FORMATION STATUS (alphabetical): Blue Hill Member (CO*,KS*,MN*,NE*,NM*,SD*), Codell Sandstone Member (CO*,KS*,MN*,NE*,NM,SD*), Fairport Chalk Member (KS*) or /Fairport Chalky Shale Member (CO*,NE*,SD*) or Fairport Member (CO*,KS*,MN*,NE*,NM*,SD*), Juana Lopez Member (CO*,KS,NM*), Pool Creek Member (MT*,SD*,WY*), Sage Breaks Member (MT*,NE*,SD*,WY*), /Turner Sandy Member (MT*,SD*,WY*), Wall Creek Member (SD,WY).


Geologic age:

Late Cretaceous (Turonian to Coniacian)*


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

Named from Carlile Spring and Carlile Station, 21 mi west of Pueblo, eastern CO (Gilbert, 1896).
[See G.W. Stose, 1912 (USGS Geologic Atlas of the United States, Apishapa folio, no. 186).]


AAPG geologic province:

Central Kansas uplift*
Central Montana uplift*
Chadron arch*
Denver basin*
Iowa shelf
Las Vegas-Raton basin*
Orogrande basin*
Palo Duro basin*
Paradox basin*
Powder River basin*
Salina basin*
San Juan basin*
Sioux uplift*
Williston 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 ([ ]).