U.S. Geological Survey Home AASG Logo USGS HOME CONTACT USGS SEARCH USGS
National Geologic Map Database

Geologic Unit: Friars

Usage:

Friars Formation of La Jolla Group (CA*)


Geologic age:

Tertiary
Eocene, middle*


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

Type section: north wall of Mission Valley, Lat. 32 deg. 46.0 min. N., Long. 117 deg. 10.8 min. W., San Diego Co., CA (Kennedy and Moore, 1971).


AAPG geologic province:

Peninsular Ranges 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 ([ ]).