Usage:
Marple Canyon Sandstone Member of Ridge Route Formation of Ridge Basin Group (CA)
Geologic age:
Tertiary
Miocene, late
Type section, locality, area and/or origin of name:
Type section: exposures on north side of Marple Canyon where Old Ridge Route crosses outcrop at head of canyon, between 1.0 km south and 0.5 km north of the intersection of Old Ridge Route and Templin Highway, about 8.0 km north of Castaic, Los Angeles Co., CA (Link, 1982).
AAPG geologic province:
Los Angeles 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 ([ ]).