Geologic Unit: Gatuna
Gatuna Formation (NM*,TX*?)
[Discrepancy concerning areal extent. See remarks under "Publication History".]
Not designated. Named from exposures in Gatuna Canyon, eastern Eddy Co., NM (Robinson and Lang, 1938).
Reference section: north side of Gatuna Canyon, in SW/4 SW/4 sec. 36, T. 19 S., R. 30 E., eastern Lea Co., NM (Bachman, 1976).
Unit Name History:
Named (Robinson, Lang, 1938).
Overview (Vine, 1963).
Areal limits; Overview (Barnes, 1976).
Reference (Bachman, 1976).
Isotopic dating (Izett and Wilcox, 1982).
[Discrepancy in GNU records (USGS DDS-6) concerning the areal extent of Gatuna Formation. The GNU comprehensive file GEONAMES indicates this unit extends into TX. Denver GNULEX does not. USGS publication reporting this unit in TX unknown. Uncertain if Gatuna Formation is used by the Texas Geol. Survey. --unresolved.]
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Asterisks (*) indicate usage by the U.S. Geological Survey. Other usages by state geological surveys.
"No current usage" implies that a name has been abandoned or that it has fallen into disuse. Former usage and, if known, replacement name given in parentheses ().
Slashes (/) indicate unit name usage violates the 1983 North American Stratigraphic Code. This violation may be explained within brackets ([ ]).
U.S. Department of the Interior, U.S. Geological Survey, Reston, VA, USA
Database project personnel
Last modified: 15-Jan-2013