U.S. Geological Survey Home AASG Logo USGS HOME CONTACT USGS SEARCH USGS
National Geologic Map Database

Geologic Unit: Redonda

Usage:

Redonda Formation (NM*)
Redonda Formation of Chinle Group (NM)


Geologic age:

Triassic, Late*


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

Not designated. Origin of name not stated by authors, but probably named from Redonda Mesa, Quay Co., NM (Dobrovolny and Summerson, 1946).


AAPG geologic province:

Sierra Grande uplift*
Palo Duro basin*
Las Vegas-Raton 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 ([ ]).