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National Geologic Map Database

Geologic Unit: Beidell

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 usage by the U.S. Geological Survey. Other usages by state geological surveys.

"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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).