AEG News, June 2000, Marin Headlands and Golden Gate Bridge, California

The Marin Headlands terrane, on the north side of the Golden Gate, consists of Jurassic and Cretaceous pillow basalts, radiolarian cherts, and turbidites. These oceanic rocks were accreted to western North America during subduction of the Farallon Plate and deformed into a series of thrust sheets.

The Association of Engineering Geologists and the California Groundwater Resources Association selected this photograph to promote their joint Annual Meeting. Two field trips during the meeting will explore the geology of this area.


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