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- Usage in publication:
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- Eel River formation
- Modifications:
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- Original reference
- Dominant lithology:
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- Siltstone
- Sandstone
- AAPG geologic province:
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- Eel River basin
Summary:
Pg. 13 (fig. 3), 28-31, 44-47, 105-107, pls. Eel River formation of Wildcat group. Massive dark gray-black siltstone and glauconitic sandstone 600 to 2,000 feet thick. Unconformably underlies Rio Dell formation (new) of Wildcat; unconformably overlies Pullen formation (new) of Wildcat. Fossils [listed]. Age is early Pliocene.
Type section: along west bank of Eel River near Scotia, Humboldt Co., northwestern CA. In southern part of area, unit forms northward-dipping belt of varying thickness which extends from coast southeastward to Eel River and beyond.
Source: Publication; US geologic names lexicon (USGS Bull. 1200, p. 1217).
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 ([ ]).