Usage:
Iversen Basalt (CA-recognized locally in Mendocino Co.)
Geologic age:
Miocene
Oligocene
Type section, locality, area and/or origin of name:
Not stated. Exposed in sea cliffs, highway cuts, and in outcrops on hill slopes within an area approx. 100 ft wide by 3 mi long and extending from near Iversen Point northward to and beyond mouth of Skooner Gulch, Mendocino Co., northern CA (Weaver, 1944).
AAPG geologic province:
Northern Coast Range 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 ([ ]).