Pico Formation
| Pico Formation Stratigraphic range: Pliocene | |
|---|---|
| Type | Geologic formation |
| Overlies | Repetto Formation |
| Location | |
| Region | Los Angeles Basin, Santa Monica Mountains Los Angeles County, California |
| Country |  United States |
The Pico Formation is a Pliocene epoch stratigraphic unit and geologic formation in the greater Los Angeles Basin, the Santa Monica Mountains, and the Santa Susana Mountains, in Los Angeles County of Southern California.
Geology[]
It was formed during the Neogene period of the Cenozoic Era, and overlies the Repetto Formation.[1]
Outcrops of the formation in Santa Monica Mountains National Recreation Area have produced fossil shark teeth from the Pliocene.[2][3]
Classification[]
The underlying Repetto Formation is equivalent in age to the Fernando Formation, and some researchers consider it as well as the overlying Pico Formation to be a junior synonym based on benthic foraminifera stages.[4] Other researchers maintain that the Repetto and Pico Formations are distinct stratigraphic units, and that the use of the name "Fernando Formation" should be stopped due to several issues with stratigraphic correlation and access to the type section.[1]
See also[]
- Geology of Los Angeles County, California
References[]
- ^ a b Blake, Gregg H. 1991. "Review of the Neogene biostratigraphy and stratigraphy of the Los Angeles Basin and implications for basin evolution," In: Biddle, Kevin T. (ed), "Active Margin Basins", AAPG Memoir 52, 319pp.
- ^ "Santa Monica Mountains National Recreation Area," Hunt, Santucci, and Kenworthy (2006); page 67.
- ^ Hunt, ReBecca K., Vincent L. Santucci and Jason Kenworthy. 2006. "A preliminary inventory of fossil fish from National Park Service units." in S.G. Lucas, J.A. Spielmann, P.M. Hester, J.P. Kenworthy, and V.L. Santucci (ed.s), Fossils from Federal Lands. New Mexico Museum of Natural History and Science Bulletin 34, pp. 63–69.
- ^ Sorlien, Christopher C.; Seeber, Leonardo; Broderick, Kris G.; Luyendyk, Bruce P.; Fisher, Michael A.; Sliter, Ray W.; Normark, William R. (June 2013). "The Palos Verdes anticlinorium along the Los Angeles, California coast: Implications for underlying thrust faulting". Geochemistry, Geophysics, Geosystems. 14 (6): 1866–1890. doi:10.1002/ggge.20112.
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- Pliocene California
- Geology of Los Angeles County, California
- Geologic formations of California
- Natural history of the Santa Monica Mountains
- California geologic formation stubs