Usage:
Amargo Formation (CA)
Geologic age:
Jurassic
Type section, locality, area and/or origin of name:
Notable exposures in low hills beginning less than 1 mi southeast of the Baker and Western Mines. Lies on both sides of paved road that connects the mines with the settlement, formerly called Amargo but now called Boron, [Mohave Desert region, Kern Co.], southeastern CA (Gale, 1946; US geologic names lexicon, USGS Bull. 1200).
AAPG geologic province:
San Joaquin 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 ([ ]).