Mt. Eden Formation
| Mount Eden Formation of Fraser (1931) | |
|---|---|
| Stratigraphic range: Neogene | |
| Type | Formation |
| Location | |
| Coordinates | 33°52′04″N 117°02′27″W / 33.867785°N 117.0408293°W |
| Region | California |
| Country | United States |
The Mt. Eden Formation is a geologic formation in Riverside County, California.[1] It underlies the San Timoteo Formation, and preserves fossils dating back to the Neogene period.[2]
Discovery and nomenclature
[edit]This geologic formation was initially described in 1921 by paleontologist Childs Frick,[3] who considered the San Timoteo Badlands to be split into three lithologic parts: (1) the Potrero Creek deposits, (2) the San Timoteo Formation, and (3) the Eden beds.[4] The word "Eden" was taken from a large hill of schist located just west of the San Jacinto quadrangle.[5] By 1931, the term "Mt. Eden formation" became prevalent while the term "Eden beds" fell into disuse, and the Potrero Creek deposits ceased to be considered a separate entity.[4]
See also
[edit]
References
[edit]- ^ Keroher, G.C. (1966). Lexicon of geologic names of the United States for 1936-1960. Retrieved 2015-01-01.
- ^ Matti, J. et al. Geologic and Geophysical Maps of the El Casco 7.5′ Quadrangle, Riverside County, Southern California, with Accompanying Geologic-Map Database, p. 1 (USGS, 2015).
- ^ English, H. Duncan. The Geology of the San Timoteo Badlands, Riverside County, California, p. 36 (Claremont College, 1953).
- ^ a b Albright, L. Barry. Biostratigraphy and Vertebrate Paleontology of the San Timoteo Badlands, Southern California, p. 5 (University of California Press, 2000).
- ^ Wilmarth, M. Grace. Bulletin 896, Lexicon of Geologic Names of the United States, p. 1433 (U.S. Dept. of Interior, 1938).
Bibliography
[edit]- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.
- USGS map
- USGS description of map