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

Geologic Unit: Poway

Usage:

Poway Group (CA*)


Subunits:

(alphabetical) --all in CA: Mission Valley Formation*, Pomerado Conglomerate, Stadium Conglomerate*.


Geologic age:

Tertiary
Eocene, middle*
Eocene, late*


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

Along south wall of Poway Valley near Poway, 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 ([ ]).