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National Geologic Map Database

Geologic Unit: Canyon Del Rey

Usage:

Canyon Del Rey Diatomite Member of Monterey Formation (CA)


Geologic age:

Miocene


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

Named from extensive exposures in Canyon del Rey, west-central CA. Best exposures of stratigraphic section are in roadcuts along old Los Laureles Grade Road, in secs. 9, 10, 15, and 16, T. 16 S., R. 1 W. Unit exposed more or less continuously in long, narrow strip over 8 sq mi and is known to underlie about 12 sq mi in Monterey and Salinas quadrangles (Bowen, 1965).


AAPG geologic province:

Coastal basins


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 ([ ]).