- Usage in publication:
-
- Escondido Canyon Shale Member*
- Modifications:
-
- Named
- Dominant lithology:
-
- Siltstone
- Mudstone
- Shale
- AAPG geologic province:
-
- Transverse Ranges province
Summary:
Type area: Escondido Canyon, Santa Monica Mountains, east central Point Dume quad, Los Angeles Co, CA. Consists of siltstone, mudstone, shale, minor interbedded sandstone turbidites, dolomitic concretions in siltstone. Thickness is 276 m. Overlies Ramera Canyon Tongue (new) (Conejo Volcanics); intertongues with Dry Canyon Sandstone Member (new) (Calabasas Formation); underlies Latigo Canyon Breccia Member (new) (Calabasas Formation). Is middle Miocene age.
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 ([ ]).