Pico Formation

Pico Formation
Stratigraphic range: Pliocene epoch,
Neogene period
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 and Santa Monica 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.[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

References

  1. 1 2 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.
  2. ↑ "Santa Monica Mountains National Recreation Area," Hunt, Santucci, and Kenworthy (2006); page 67.
  3. ↑ 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.
  4. ↑ Sorlien, Christopher C.; Seeber, Leonardo; Broderick, Kris G.; Luyendyk, Bruce P.; Sliter, Ray W.; Normark, William R. "The Palos Verdes anticlinorium along the Los Angeles, California coast: implications for underlying thrust faulting." Geochemistry, Geophysics, Geosystems. Volume 14, Number 6, pp. 1866-1890. doi:10.102/ggge.20112


Neogene Period
Miocene Pliocene
Aquitanian | Burdigalian
Langhian | Serravallian
Tortonian | Messinian		 Zanclean | Piacenzian

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