Usage:
No current usage.
(Rocks of †Dos Alamos Gypsum (TX) reallocated to Cutoff Shaly Member of Bone Spring Limestone [now Cutoff Shale or Cutoff Formation]. See Cutoff.)
Geologic age:
early to middle Permian (Cisuralian to Guadalupian; Kungurian to Roadian)
Type section, locality, area and/or origin of name:
Named from Dos Alamos, west of Guadalupe Point on west side of Salt Flat, Sierra Diablo area, TX, where unit is exposed (King and King, 1929).
AAPG geologic province:
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 conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).