Earth:Johnson Spring Formation
From HandWiki
| Johnson Spring Formation Stratigraphic range: Ordovician | |
|---|---|
| Type | Formation |
| Unit of | Eureka Group[1] |
| Underlies | Barrel Spring Formation |
| Overlies | Ely Springs Dolomite |
| Thickness | between 114 feet (35 m) and 398 feet (121 m)[2] |
| Location | |
| Region | Inyo Mountains, California |
| Country | United States |
| Type section | |
| Named by | Harold Richard Pestana[2] |
The Johnson Spring Formation is a geologic formation in California.[3] It preserves fossils dating back to the Ordovician period.[4]
Previously described as undifferentiated upper part of Eureka group by Langenheim and others, Pestana formally named the formation in 1960.[2] The Johnson Springs Formation underlies the Barrel Spring Formation and overlies the Ely Springs Dolomite.[5]
The type section is in Lead Canyon Trail section of the Independence quadrangle, Inyo Mountains.[5]
See also
- List of fossiliferous stratigraphic units in California
- Paleontology in California
References
- ↑ , Wikidata Q96655744
- ↑ 2.0 2.1 2.2 , p. 18, Wikidata Q61048695
- ↑ , Wikidata Q96655687
- ↑ ((Various Contributors to the Paleobiology Database)). "Fossilworks: Gateway to the Paleobiology Database". https://www.fossilworks.org/.
- ↑ 5.0 5.1 "Johnson Spring Formation". USGS. https://ngmdb.usgs.gov/Geolex/stratres/cards?q=JohnsonSpringFormation.
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