• Source: San Francisquito Formation

The San Francisquito Formation is a geologic formation located in northern Los Angeles County, California.
Areas where it is exposed include: San Francisquito Canyon of the Sierra Pelona Mountains, as well as on the northwestern side of the Devil's Punchbowl gorge in the San Gabriel Mountains.




Geology


The San Francisquito Formation consists of marine deposits that originated during the Late Cretaceous period of the Mesozoic Era, and the Early Paleocene epoch in the Paleogene period of the Cenozoic Era. It is overlain by the Punchbowl Formation (east) and Castaic Formation (west), both of the Miocene and Pliocene epochs. It overlies the crystalline San Gabriel Basement Complex.
It is found between the San Andreas Fault on its north, and the Devil's Punchbowl Fault on its south. The Pliocene epoch Crowder Formation is to the northeast.




= Fossil content

=
It preserves fossils dating back to the Paleogene period.




See also


Geology of Los Angeles County, California
List of fossiliferous stratigraphic units in California
Paleontology in California
Neenach Volcano




References

Kata Kunci Pencarian:

• Palo Alto Timur, California
• San Francisquito Formation
• San Francisquito Canyon
• Vasquez Formation
• San Mateo County, California
• Crowder Formation
• Jasper Ridge Biological Preserve
• St. Francis Dam
• Azusa, California
• Turris burroensis
• San Andreas Fault