- Usage in publication:
-
- Coal Canyon Formation*
- Modifications:
-
- Named
- Dominant lithology:
-
- Sandstone
- Conglomerate
- Siltstone
- AAPG geologic province:
-
- Los Angeles basin
Summary:
Type locality: Carbon (formerly Coal) Canyon, S 1/2 secs.22 and 23, T1S R17W, Santa Monica Mountains, southeast Malibu Beach quad, Los Angeles Co, CA. Formerly rocks were called Martinez Formation in Santa Monica Mountains. Consists of sandstone, pebbly sandstone, pebble conglomerate, siltstone with pods of algal limestone. Is cliff forming and fossiliferous. Is 335 m thick with range of 335 to 450 m. Disconformably(?) overlies Tuna Canyon Formation, or locally, conformably overlies intervening Simi(?) Conglomerate; underlies Llajas(?) Formation. Contains so-called "Martinez" fauna of Ynezian (Paleocene) age. Age is early Paleocene and Eocene(?).
Source: GNU records (USGS DDS-6; Menlo GNULEX).
- Usage in publication:
-
- Coal Canyon Formation*
- Modifications:
-
- Age modified
- AAPG geologic province:
-
- Los Angeles basin
Summary:
Age in report area [Malibu Beach and Topanga 7.5' quads] given as early Paleocene and Eocene based on mollusks and other fossils.
Source: GNU records (USGS DDS-6; Menlo GNULEX).
- Usage in publication:
-
- Coal Canyon Formation*
- Modifications:
-
- Age modified
- AAPG geologic province:
-
- Los Angeles basin
Summary:
Unit age in report area [Point Dume 7.5' quad, Los Angeles Co, CA] given as Paleocene based on mollusks.
Source: GNU records (USGS DDS-6; Menlo GNULEX).
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 ([ ]).