Usage:
Bell Canyon Formation of Delaware Mountain Group (NM*,TX*)
Subunits:
(alphabetical) --all in NM and TX: Ford Member, Hays Member, Hegler Member*, Lamar Limestone Member*, McCombs Limestone Member, Olds Member, Pinery Limestone Member*, Rader Limestone Member*, Ramsey Member, Reef Trail Member*, Trap Member.
Geologic age:
Middle Permian (Guadalupian)*
Type section, locality, area and/or origin of name:
Named from Bell Canyon, a gorge that drains eastward from Rader Ridge to old route of U.S. Highway 62, where it joins Lamar Canyon, Culberson Co., TX. Crops out in broad belt between crest of Delaware Mountains and Gypsum Plain on the east; lower part extends into Guadalupe Mountains, or into reef zone at margin of Delaware basin (King, 1942; 1948 [1949]).
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 ([ ]).