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National Geologic Map Database

Geologic Unit: Magdalena

Usage:

Magdalena Formation (NM*,TX*)
Magdalena Group (NM*,TX)
[†Magdalena Group, or †Magdalena Formation, not used by the NM Geol. Survey.]


Subunits:

GROUP STATUS (alphabetical): Bar B Formation (NM*), Bursum Formation (NM*), Madera Formation (NM*) or Madera Limestone (NM*), Nakaye Formation (NM*), Oswaldo Formation (NM*) or Oswaldo Limestone (NM*), Panther Seep Formation (NM*,TX?), Red House Formation (NM*), Syrena Formation (NM*).
FORMATION STATUS (alphabetical) --all in NM*,TX*: Berino Member, Bishop Cap Member, La Tuna Member.


Geologic age:

Pennsylvanian to Early Permian*


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

Named from development in Magdalena Mountains, Soccorro Co., southwestern NM (US geologic names lexicons, USGS Bull. 896, 1200).


AAPG geologic province:

Basin-and-Range province*
Estancia basin*
Las Vegas-Raton basin*
Orogrande basin*
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 ([ ]).