Tag: "volcanic rocks"
The Moraga Formation's distinctive set of volcanic rocks can be visited in many places in the East Bay hills. Let's have a look at five localities.
The Cordelia fault is about as user-friendly as a fault can be, and its appearance west of Fairfield is the best fault exposure in the Bay Area.
Post on Jun 16, 2011 by Andrew Alden
The Marin Headlands are a textbook location to see some classic rocks of the Franciscan Complex, rocks that literally shape San Francisco's worldview.
Post on Apr 21, 2011 by Andrew Alden