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

Geologic Unit: Prisoners Harbor

Usage:

Prisoners Harbor Member of /Santa Cruz Island Volcanics (CA*)

[Santa Cruz Island preempted.]


Geologic age:

Tertiary*


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

[Type locality]: quarry and sea cliffs at Prisoners Harbor, Santa Cruz Island, off southern coast of CA (Nolf and Nolf, 1969).


AAPG geologic province:

Santa Maria 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 ([ ]).