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- Usage in publication:
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- Solstice Canyon Tongue*
- Modifications:
-
- Named
- Dominant lithology:
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- Basalt
- Andesite
- Breccia
- Tuff
- AAPG geologic province:
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- Transverse Ranges province
Summary:
Named as middle of three named tongues of Conejo Volcanics of Topanga Group. Type area designated as exposures at Solstice Canyon, Santa Monica Mountains, east-central Point Dune quad, Los Angeles Co, CA. Consists of basaltic andesitic flows, breccias, and tuffs. Thickness is 244 m. Overlies Latigo Canyon Breccia Member (new) (Calabasas Formation); intertongues with Dry Canyon Sandstone Member (new) (Calabasas Formation); underlies Malibu Bowl Tongue (new) (Conejo Volcanics). 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 ([ ]).