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

Geologic Unit: Carson

Usage:

No current usage?
(†/Carson Sand Member of Gallup Sandstone (NM) considered abandoned? Uncertain if used by the NM Geol. Survey. Not used by the USGS.)

[Preoccupied. Name previously applied to Carson Conglomerate by Just (1937) in NM.]


Geologic age:

Late Cretaceous


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

Type section (subsurface): Shell No. 21-13 Carson, in NE/4 NW/4 sec. 23, T. 25 N., R. 12 W., San Juan Co., NM (Sabins, 1963).


AAPG geologic province:

San Juan 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 conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).