- Usage in publication:
-
- Malibu Bowl Tongue*
- Modifications:
-
- Named
- Dominant lithology:
-
- Andesite
- Basalt
- AAPG geologic province:
-
- Transverse Ranges province
Summary:
Type area designated as Malibu Bowl [SW/4 sec. 23, T1S R18W] Santa Monica Mountains, west central Malibu Beach quad, Los Angeles Co., CA. Is upper tongue of three named tongues of the Conejo Volcanics of the Topanga Group, which are recognized only in upper plate of Malibu detachment fault. Consists of andesitic and basaltic flows and flow breccias. Thickness is 143 m. Overlies the Dry Canyon Sandstone Member (new) of the Calabasas Formation or the Solstice Canyon Tongue (new) of the Conejo Volcanics; underlies and intertongues with the Newell Sandstone Member (new) of the Calabasas Formation. Age is middle Miocene.
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 ([ ]).