Usage:
Duzel Phyllite (CA*)
Duzel Formation (CA)
Subunits:
[†?] Callahan Chert Member (CA).
Geologic age:
Ordovician to Silurian*
Type section, locality, area and/or origin of name:
[Not stated.] Occurs in two valleys south of Yreka, Siskiyou Co., northern CA. Crops out in drainage basin of Moffett Creek. Named from Duzel Creek, a tributary of Moffett Creek, which is just east of Duzel Rock, conspicuoiis mass of white marble that caps highest peak in area (Wells and others, 1959).
AAPG geologic province:
Klamath Mountains province*
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 ([ ]).