Usage:
Beidell Quartz Latite (CO*)
Geologic age:
Oligocene* and older(?)
Type section, locality, area and/or origin of name:
Named from old mining camp of Beidell, around which it is best developed, Del Norte quadrangle, Saguache Co., southwestern CO. Also present in adjacent Saguache quadrangle (Cross and Larsen, 1935).
AAPG geologic province:
San Luis 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 ([ ]).