Usage:
Chamisal Formation (CA)
Subunits:
(alphabetical) --all in CA: Los Tularcitos Member, Robinson Canyon Member.
Geologic age:
Tertiary
Miocene, middle
Type section, locality, area and/or origin of name:
Type section: crest of Chamisal Ridge, northeast to confluence of Robinson Canyon and east tributary, northwest to Carmel Valley, in sec. 25 and 26, T. 16 S., R. 1 E., Monterey 15-min quadrangle, Rancho Potrero de San Carlos land grant, Point Sur 15-min quadrangle (Bowen, 1965).
AAPG geologic province:
California Coast 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 ([ ]).