Geology of the Marin Headlands, Golden Gate National Recreation Area

Point Reyes National Seashore Association

Geology of the Marin Headlands, Golden Gate National Recreation Area


Point Reyes National Seashore Association Point Reyes National Seashore Point Reyes Station, CA 94956	Saturday, May 18, 2013 9:00 AM - 5:00 PM

Details

John Karachewski, Instructor

Learn about the eruption of pillow basalts as well as the deposition of ribbon cherts, shales, and greywacke sandstones, by visiting Cronkhite Beach, Point Bonita, and Kirby Cove or Hawk Hill depending upon conditions. Participants will also learn about the subduction of the Farallon Plate beneath the North America Plate and observe the intricate folding and faulting of these rocks in the Franciscan Complex. We will also discuss the relationship between Ice Age cycles, giant megafauna, and the recent flooding of San Francisco Bay. Lastly, we will talk about the San Andreas Fault, which lies several miles offshore of Marin County. We will hike up to 5 miles and gain up to 500 feet in elevation gain.

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Point Reyes National Seashore Association Purchase/refund policy: Membership Refund Policy: Notification must be received within one week from transaction date (minus a $10 processing fee for each membership). Field Seminar Refund Policy: Notification must be received at least 14 days before the first day of the class if you cancel and wish to receive a refund (minus a $10 processing fee for each person registered) or a full credit toward another seminar (good for one year). No refunds, transfers or credits will be issued on cancellations made less than 14 days in advance. We regret that NO EXCEPTIONS to this cancellation policy can be made, even for medical reasons. In the rare event that Point Reyes Field Seminars cancels a program, we will issue a full refund or credit.

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