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National Geologic Map Database

Geologic Unit: El Paso

Usage:

El Paso Group (AZ*?,NM*,TX*)
El Paso Formation (AZ*,NM*,TX*)
El Paso Limestone (AZ*,NM*,TX*)
El Paso Dolomite (NM*)


Subunits:

GROUP STATUS (alphabetical): Bat Cave Formation (NM*) or Bat Cave Limestone (NM), Big Hatchet Formation (NM,TX), Cooks Formation (NM,TX), Florida Mountains Formation (NM,TX), Hitt Canyon Formation (NM*,TX*), /Jose Formation (NM), McKelligon Limestone (NM*,TX*), Mud Springs Mountain Formation (NM), Padre Formation (NM,TX), Scenic Drive Formation (NM,TX), Sierrite Formation (NM,TX) or Sierrite Limestone (NM*), Snake Hills Formation (NM,TX), Victorio Hills Formation (NM,TX).
FORMATION STATUS (alphabetical): Bat Cave Member (NM), Hitt Canyon Member (NM,TX), /Jose Member (NM), McKelligon Member (NM,TX), Padre Member (NM,TX).


Geologic age:

Cambrian, Late*
Croixan
Ordovician, Early*
Canadian


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

Named from exposures in Franklin and Hueco Mountains, El Paso quadrangle, El Paso Co., TX (Richardson, 1904).


AAPG geologic province:

Basin-and-Range province*
Orogrande basin*
Pedregosa basin*
Permian 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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).