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San Andreas Fault—Tomales Bay (Labeled)

rocky shoreline and open water bay

Point Reyes National Seashore, California. Tomales Bay is the surface expression of the San Andreas Fault. The granite rocks in the foreground are similar to those found in Yosemite National Park in the Sierra Nevada Mountains. They have been transported about 300 miles (500 kilometers) in a north-northwestward direction along the transform plate boundary. The sedimentary and metamorphic rocks across the fault line are similar to those found in Redwood National and State Parks on the North Coast of California. They were lifted out of the ocean as part of the accretionary wedge of an ancient subduction zone.

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Photo Courtesy of Robert J. Lillie.

Public domain:Full Granting Rights

Image

Geologic Resources Division, Code: GRD

NPS.gov Collection

[date?]

11/20/2019

Public Can View

Friday, January 31, 2020 9:36:24 AM

Friday, January 31, 2020 9:36:24 AM

PORE tomales bay@10x.jpg

Thursday, November 21, 2019 12:05:11 AM

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1.1 MB

2019-11-20T17:05:11-07:00

Scenic