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National Geologic Map Database

Geologic Unit: Carlotta

Usage:

Carlotta Formation of Wildcat Group (CA*)


Geologic age:

Quaternary (Pleistocene)*


Type section, locality, area and/or origin of name:

Type section: near town of Carlotta, Humboldt Co., northwestern CA. No complete well exposed section exists. Principal distribution is in trough of major Eel River syncline and in western part of Fortuna quadrangle. Westward plunge of Cenozoic structures and the Little Salmon Creek fault limit eastward extent (Ogle,1953).


AAPG geologic province:

Eel River 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 ([ ]).