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National Geologic Map Database

Geologic Unit: Cutoff

Usage:

Cutoff Shale (NM*,TX*)
Cutoff Formation (NM*,TX*)


Geologic age:

Early to Middle Permian (Cisuralian to Guadalupian; Kungurian to Roadian)*


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

Type exposure: on west face of Cutoff Mountain near TX-NM line (King, 1942).


AAPG geologic province:

Permian 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 ([ ]).